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	<id>https://old.hacdc.org/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Nock</id>
	<title>HacDC Wiki - User contributions [en]</title>
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	<updated>2026-05-07T13:03:54Z</updated>
	<subtitle>User contributions</subtitle>
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	<entry>
		<id>https://old.hacdc.org/index.php?title=Items_Borrowed_from_the_HacDC_Space&amp;diff=9146</id>
		<title>Items Borrowed from the HacDC Space</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Items_Borrowed_from_the_HacDC_Space&amp;diff=9146"/>
		<updated>2013-04-05T21:18:15Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&#039;&#039;Add new entries to the top of the list!&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;April 4, 2013&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Nocko|nocko]]&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
Diligent Spartan-3E Starter Board (Labeled HacDC #12). I want to see if the SUMP logic analyser HDL can be modified and installed on this board.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;December 18, 2012&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Mirage335|mirage335]]&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
Project Salvage components. Most should become valuable electronic test equipment at HacDC and absolutely must not be trashed.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;July 21, 2012&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Mirage335|mirage335]]&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
Borrowing Ham radio gear this weekend, as described in the previous struck through entry. EDIT: Returned. Awesome data obtained.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 29, 2012&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Mirage335|mirage335]]&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
&amp;lt;s&amp;gt;Borrowing Ham radio gear tomorrow. Specifically, IC-718 radio, antenna tuner, RF power meter, balun (if available), PSU, some feedline, some wire, and a measuring tape (if &amp;gt;12&#039;). Will also borrow some of my own objects at the space, specifically a UPS (for its 12V battery) and a magnetic loop antenna. Leaving my name and number on the ham radio cart in case anyone needs the radio or has questions. This is exclusively for the purpose of diagnosing HacDC&#039;s ham radio issues as documented on the mailing list.&amp;lt;/s&amp;gt; Postponed due to severe weather and power disruption. Radio not borrowed yet.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;May 30, 2012&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Mirage335|mirage335]]&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
- Ancient (20 years+) semi-working AM/FM/WB/CB radio.&lt;br /&gt;
Found in basement. AM function never worked, in sorry shape, needs repair, so I&#039;m going to try repairing it as far as possible. Will be back at the space in ~2 weeks. EDIT: Returned. After mostly mechanical repairs, AM, FM, CB functions work well.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;April 2012 - [[User:Tslagle]]&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
- IBM Thinkpad T43 laptop from David Whiteis.  Wiped, installed  Windows 7 and MATLAB on it, used it for USA Science &amp;amp; Engineering Fest booth demo (&amp;quot;Mug Plot&amp;quot;)&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;18:00, 29, January 2011 (PST) - [[User:Williamgibb|Williamgibb]]&amp;lt;/b&amp;gt;&lt;br /&gt;
- Stanford Research Systems DG535 Pulse Generator&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;20:30, 1314, November 2010 (PST) - [[User:Williamgibb|Williamgibb]]&amp;lt;/b&amp;gt;&lt;br /&gt;
- Digilent FX2 Expansion board for Spartan3E FPGA Starter Kit.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;17:20, 13 July 2010 (UTC) - [[User:DLotts|DLotts]]&amp;lt;/b&amp;gt;&lt;br /&gt;
- One OLPC XO with charge cord.  It calls itself HacDC OLPC #3.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;December 15, 2009 - [[User:timball|timball]]&amp;lt;/b&amp;gt;&lt;br /&gt;
- one black soldering iron + stand&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;[[User:DLotts|DLotts]] 08:41, 29 October 2009 (UTC)&amp;lt;/b&amp;gt;&lt;br /&gt;
- A230 Micro Game Station with labeled problem: &amp;quot;Raster screen&amp;quot; AKA white screen of death with stripes.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 2, 2009&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Derek Cooper&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
- Infrared night vision goggles &amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 2, 2009&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;David Lotts&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
- Infrared night vision goggles (EyeClops) &amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 2, 2009&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Drwho|The Doctor]]&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
- Infrared night vision goggles &amp;lt;br /&amp;gt;&lt;br /&gt;
&#039;cause, you know, all the cool kids were doing it.&amp;lt;br /&amp;gt;&lt;br /&gt;
I discovered that the unit I borrowed is flaky - after a few seconds of wearing it while powered up the display flickers and goes dead.  I think that the cable leading from the power pack to the visor has a bad connection.  When I get time I&#039;ll tear this one down and see if I can repair it.&amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;January 13, 2009&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Derek Cooper&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
- CEN-TECH Digital Multimeter (red) Item#90899 &amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;December 22, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Myself|Nate]]&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
JC Penney component stereo cassette deck&amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt; Nov 13, 2008&amp;lt;/b&amp;gt; Mac G4 usb keyboards (x2) - member28 &amp;lt;br&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;August 7, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;[[User:Ben|Ben]]&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
- Beginning Electronics book&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;July 25, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Q (andrew@i11industries.com)&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 30, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Q (andrew@i11industries.com)&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
- 1x Digital Multimeter (Yellow) &amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 19, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Richard Bewley (rbewley@gmail.com)&amp;lt;/b&amp;gt; - &amp;lt;b style=&amp;quot;color: red;&amp;quot;&amp;gt;Not Returned / Outstanding&amp;lt;/b&amp;gt;&amp;lt;br /&amp;gt;&lt;br /&gt;
- 1x Lineman&#039;s handset&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 1, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Tino (oberoc@yahoo.com)&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
Small Form Factor PCs book&amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;h2&amp;gt;Items Returned to the HacDC Space&amp;lt;/h2&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;June 15, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Tino (oberoc@yahoo.com)&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
Small Form Factor PCs book&amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;July 25, 2008&amp;lt;/b&amp;gt; - &amp;lt;b&amp;gt;Q (andrew@i11industries.com)&amp;lt;/b&amp;gt; - &amp;lt;br /&amp;gt;&lt;br /&gt;
- Reflow Station &amp;lt;br /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:Materiel]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Welcome_to_the_HacDC_Wiki&amp;diff=9097</id>
		<title>Welcome to the HacDC Wiki</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Welcome_to_the_HacDC_Wiki&amp;diff=9097"/>
		<updated>2013-03-15T15:48:36Z</updated>

		<summary type="html">&lt;p&gt;Nock: Fixed GrindDC meetup link&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:HacDC_Wiki]]&lt;br /&gt;
&lt;br /&gt;
{{TOCright}}&amp;lt;span style=&amp;quot;font-size:large; line-height:1.5em; color:#222&amp;quot;&amp;gt;Welcome to HacDC. We are a hacker space located in Washington, DC. HacDC members improve the world by creatively rethinking technology. We break, build, and occasionally abuse technology in the pursuit of greater knowledge about how it works and repurposing it to build new things. Our shop is located in the [http://en.wikipedia.org/wiki/Columbia_Heights%2C_Washington%2C_D.C. Columbia Heights] neighborhood of DC.&amp;lt;/span&amp;gt;&lt;br /&gt;
&lt;br /&gt;
If you&#039;re new here, you should start by looking at our public web site at [http://www.hacdc.org/ hacdc.org]. Our Wiki is mostly for internal organization, but you&#039;re welcome to look through to get a sense of what we work on (and consider joining yourself!).  We invite you to subscribe to our [https://groups.google.com/a/hacdc.org/group/Blabber/topics Blabber] public discussion mailing list.&amp;lt;hr&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;div style=&amp;quot;float:left; width:48%;&amp;quot;&amp;gt;&lt;br /&gt;
=== Cool Stuff Going On Right Now ===&lt;br /&gt;
&lt;br /&gt;
* [[TECS | The Elements of Computing Systems: Building a Modern Computer from First Principles]]&lt;br /&gt;
* [[Byzantium]]&lt;br /&gt;
* [[3D Printing]] - Prusa Mendel iteration 2 up and running in the space&lt;br /&gt;
* &#039;&#039;&#039;Microcontroller Mondays&#039;&#039;&#039; (BYO project to work on, get help on, or show off...or just come to check us out! ...usually from 7:30pm on.)&lt;br /&gt;
* [[Schemers|&amp;quot;Schemers&amp;quot; a Biweekly SICP study group]] meeting on [http://www.meetup.com/hac-dc/events/64832532/ alternate Tuesdays]&lt;br /&gt;
* &#039;&#039;&#039;{S,Th}oftware Thursdays&#039;&#039;&#039; (BYO project to work on, get help on, or show off...or just come to check us out!) ...usually from 7:30pm on.)&lt;br /&gt;
* [[Amateur radio]]  &#039;&#039;&#039;Ham Radio&#039;&#039;&#039; - make stuff, get your license, QSO, test, tinker, learn,...&lt;br /&gt;
* [[GrindDC]] &#039;&#039;&#039;Biohacking/DIYbio&#039;&#039;&#039; - Hacking on wetware: EEG/EKG/EMG, implants, Quantified Self [http://www.meetup.com/hac-dc/events/108356462/ Thursdays at 7p]&lt;br /&gt;
&lt;br /&gt;
=== Top Links ===&lt;br /&gt;
Themes and threads that span across the other categories in the Wiki.  This is also where we keep things that don&#039;t easily fit in other categories:&lt;br /&gt;
&lt;br /&gt;
* &#039;&#039;&#039;[[Outline]]&#039;&#039;&#039;&lt;br /&gt;
* [[Proposed Standing Rules]]&lt;br /&gt;
* [[GettingHere]]&lt;br /&gt;
* [[:Category:Meeting Minutes | Meeting Minutes and Agendas]]&lt;br /&gt;
* [[:Category:Classes | Classes]]&lt;br /&gt;
* [[:Category:Hacker Travel | Hacker Travel]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:Projects]] ===&lt;br /&gt;
Where our projects collaborate and document their research and progress.  They are generally classified as:&lt;br /&gt;
* [[:Category:Project_Awesome | Project Awesome Projects]]&lt;br /&gt;
* [[:Category:Ongoing Projects | Ongoing Projects]]&lt;br /&gt;
* [[:Category:Previous Projects | Previous Projects]]&lt;br /&gt;
* [[:Category:Proposed Projects | Proposed Projects]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:In the Space | Records]] ===&lt;br /&gt;
Entries relating to the space including layout and events and classes we hold&lt;br /&gt;
* [[:Category:Space Configuration | Configuration]]&lt;br /&gt;
* [[:Category:Event Planning | Event Planning]]&lt;br /&gt;
* [[:Category:Classes | Classes]]&lt;br /&gt;
* [[Wishlist]]&lt;br /&gt;
* [[:Category:What_I_Stole | What I Stole]]&lt;br /&gt;
* [[Inventory | Inventory]]&lt;br /&gt;
* [[Procurement | Procurement]]&lt;br /&gt;
* [[Suppliers | Suppliers]]&lt;br /&gt;
* [[Whiteboard | Whiteboard]]&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;div style=&amp;quot;float:right; width:48%;&amp;quot;&amp;gt; &amp;lt;!-- This width adds to the margin above to equal 100 %--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
=== Events ===&lt;br /&gt;
&amp;lt;googlecalendar&amp;gt;?showTitle=0&amp;amp;amp;showPrint=0&amp;amp;amp;showCalendars=0&amp;amp;amp;mode=AGENDA&amp;amp;amp;height=250&amp;amp;amp;wkst=1&amp;amp;amp;bgcolor=%23FFFFFF&amp;amp;amp;src=uu5p71ump3g23l2mj7cvk2l2tb7girmo%40import.calendar.google.com&amp;amp;amp;color=%2328754E&amp;amp;amp;ctz=America%2FNew_York&amp;quot; style=&amp;quot; border-width:0 &amp;quot; width=&amp;quot;500&amp;quot; height=&amp;quot;250&amp;quot; frameborder=&amp;quot;0&amp;quot; scrolling=&amp;quot;no&amp;quot;&amp;gt;&amp;lt;/googlecalendar&amp;gt;&lt;br /&gt;
&lt;br /&gt;
This calendar pulls events from our official [http://www.meetup.com/hac-dc/#calendar Meetup] calendar.  A [http://hacdc.org/ics iCal feed] is also available, for enjoying our events from your favorite calendaring software.&lt;br /&gt;
&lt;br /&gt;
=== Past Cool Stuff That Will Happen Again ===&lt;br /&gt;
&lt;br /&gt;
* [[IntrotoVisualsforProgrammers | Intro to Visuals for Programmers]]&lt;br /&gt;
* [[Electron Tube Class]]&lt;br /&gt;
* Max/MSP Workshop&lt;br /&gt;
* [[Quantified Self]]&lt;br /&gt;
* [[LightningTalks]]&lt;br /&gt;
* [[Intro to Programming]]&lt;br /&gt;
* [[AVR Microcontroller Class 2011]]&lt;br /&gt;
* [[Great Global Hackerspace Challenge]]&lt;br /&gt;
* [[Linux Class]]&lt;br /&gt;
* [[Bike Maintenance Class]]&lt;br /&gt;
* [[HacDC Spaceblimp 5]]&lt;br /&gt;
* [[Robotics Class 2011]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:Community]] ===&lt;br /&gt;
Pages on people in our community :&lt;br /&gt;
* [[:Category:Members | Member User Pages]] &lt;br /&gt;
* [[:Category:Friends | Friends of HacDC]]&lt;br /&gt;
* [[Heroes | Heroes and people who inspire us]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:Policy]] ===&lt;br /&gt;
Our Policy Manual is divided into the following subcategories:&lt;br /&gt;
* [[Articles_of_Incorporation|Articles of Incorporation]]&lt;br /&gt;
* [[Bylaws]]&lt;br /&gt;
* [[MIBS_Simplified_Rules_of_Coordinated_Consensus_through_Chaos | Meeting Rules]]&lt;br /&gt;
* [[Privacy_Policy | Privacy Policy]]&lt;br /&gt;
* [[Resource_Use_Policy | Resource Use Policy]]&lt;br /&gt;
* [[Resource_Disposal | Resource Disposal Policy]]&lt;br /&gt;
* [[:Category:Communications Policy | Communications Policy]]&lt;br /&gt;
* [[Licensing_Policy | Licensing Policy]]&lt;br /&gt;
&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Welcome_to_the_HacDC_Wiki&amp;diff=9096</id>
		<title>Welcome to the HacDC Wiki</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Welcome_to_the_HacDC_Wiki&amp;diff=9096"/>
		<updated>2013-03-15T15:44:15Z</updated>

		<summary type="html">&lt;p&gt;Nock: Added GrindDC to the Cool Stuff category&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:HacDC_Wiki]]&lt;br /&gt;
&lt;br /&gt;
{{TOCright}}&amp;lt;span style=&amp;quot;font-size:large; line-height:1.5em; color:#222&amp;quot;&amp;gt;Welcome to HacDC. We are a hacker space located in Washington, DC. HacDC members improve the world by creatively rethinking technology. We break, build, and occasionally abuse technology in the pursuit of greater knowledge about how it works and repurposing it to build new things. Our shop is located in the [http://en.wikipedia.org/wiki/Columbia_Heights%2C_Washington%2C_D.C. Columbia Heights] neighborhood of DC.&amp;lt;/span&amp;gt;&lt;br /&gt;
&lt;br /&gt;
If you&#039;re new here, you should start by looking at our public web site at [http://www.hacdc.org/ hacdc.org]. Our Wiki is mostly for internal organization, but you&#039;re welcome to look through to get a sense of what we work on (and consider joining yourself!).  We invite you to subscribe to our [https://groups.google.com/a/hacdc.org/group/Blabber/topics Blabber] public discussion mailing list.&amp;lt;hr&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;div style=&amp;quot;float:left; width:48%;&amp;quot;&amp;gt;&lt;br /&gt;
=== Cool Stuff Going On Right Now ===&lt;br /&gt;
&lt;br /&gt;
* [[TECS | The Elements of Computing Systems: Building a Modern Computer from First Principles]]&lt;br /&gt;
* [[Byzantium]]&lt;br /&gt;
* [[3D Printing]] - Prusa Mendel iteration 2 up and running in the space&lt;br /&gt;
* &#039;&#039;&#039;Microcontroller Mondays&#039;&#039;&#039; (BYO project to work on, get help on, or show off...or just come to check us out! ...usually from 7:30pm on.)&lt;br /&gt;
* [[Schemers|&amp;quot;Schemers&amp;quot; a Biweekly SICP study group]] meeting on [http://www.meetup.com/hac-dc/events/64832532/ alternate Tuesdays]&lt;br /&gt;
* &#039;&#039;&#039;{S,Th}oftware Thursdays&#039;&#039;&#039; (BYO project to work on, get help on, or show off...or just come to check us out!) ...usually from 7:30pm on.)&lt;br /&gt;
* [[Amateur radio]]  &#039;&#039;&#039;Ham Radio&#039;&#039;&#039; - make stuff, get your license, QSO, test, tinker, learn,...&lt;br /&gt;
* [[GrindDC]] &#039;&#039;&#039;Biohacking/DIYbio&#039;&#039;&#039; - Hacking on wetware: EEG/EKG/EMG, implants, Quantified Self [http://www.meetup.com/hac-dc/events/108356462/|Thursdays at 7p]&lt;br /&gt;
&lt;br /&gt;
=== Top Links ===&lt;br /&gt;
Themes and threads that span across the other categories in the Wiki.  This is also where we keep things that don&#039;t easily fit in other categories:&lt;br /&gt;
&lt;br /&gt;
* &#039;&#039;&#039;[[Outline]]&#039;&#039;&#039;&lt;br /&gt;
* [[Proposed Standing Rules]]&lt;br /&gt;
* [[GettingHere]]&lt;br /&gt;
* [[:Category:Meeting Minutes | Meeting Minutes and Agendas]]&lt;br /&gt;
* [[:Category:Classes | Classes]]&lt;br /&gt;
* [[:Category:Hacker Travel | Hacker Travel]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:Projects]] ===&lt;br /&gt;
Where our projects collaborate and document their research and progress.  They are generally classified as:&lt;br /&gt;
* [[:Category:Project_Awesome | Project Awesome Projects]]&lt;br /&gt;
* [[:Category:Ongoing Projects | Ongoing Projects]]&lt;br /&gt;
* [[:Category:Previous Projects | Previous Projects]]&lt;br /&gt;
* [[:Category:Proposed Projects | Proposed Projects]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:In the Space | Records]] ===&lt;br /&gt;
Entries relating to the space including layout and events and classes we hold&lt;br /&gt;
* [[:Category:Space Configuration | Configuration]]&lt;br /&gt;
* [[:Category:Event Planning | Event Planning]]&lt;br /&gt;
* [[:Category:Classes | Classes]]&lt;br /&gt;
* [[Wishlist]]&lt;br /&gt;
* [[:Category:What_I_Stole | What I Stole]]&lt;br /&gt;
* [[Inventory | Inventory]]&lt;br /&gt;
* [[Procurement | Procurement]]&lt;br /&gt;
* [[Suppliers | Suppliers]]&lt;br /&gt;
* [[Whiteboard | Whiteboard]]&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;div style=&amp;quot;float:right; width:48%;&amp;quot;&amp;gt; &amp;lt;!-- This width adds to the margin above to equal 100 %--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
=== Events ===&lt;br /&gt;
&amp;lt;googlecalendar&amp;gt;?showTitle=0&amp;amp;amp;showPrint=0&amp;amp;amp;showCalendars=0&amp;amp;amp;mode=AGENDA&amp;amp;amp;height=250&amp;amp;amp;wkst=1&amp;amp;amp;bgcolor=%23FFFFFF&amp;amp;amp;src=uu5p71ump3g23l2mj7cvk2l2tb7girmo%40import.calendar.google.com&amp;amp;amp;color=%2328754E&amp;amp;amp;ctz=America%2FNew_York&amp;quot; style=&amp;quot; border-width:0 &amp;quot; width=&amp;quot;500&amp;quot; height=&amp;quot;250&amp;quot; frameborder=&amp;quot;0&amp;quot; scrolling=&amp;quot;no&amp;quot;&amp;gt;&amp;lt;/googlecalendar&amp;gt;&lt;br /&gt;
&lt;br /&gt;
This calendar pulls events from our official [http://www.meetup.com/hac-dc/#calendar Meetup] calendar.  A [http://hacdc.org/ics iCal feed] is also available, for enjoying our events from your favorite calendaring software.&lt;br /&gt;
&lt;br /&gt;
=== Past Cool Stuff That Will Happen Again ===&lt;br /&gt;
&lt;br /&gt;
* [[IntrotoVisualsforProgrammers | Intro to Visuals for Programmers]]&lt;br /&gt;
* [[Electron Tube Class]]&lt;br /&gt;
* Max/MSP Workshop&lt;br /&gt;
* [[Quantified Self]]&lt;br /&gt;
* [[LightningTalks]]&lt;br /&gt;
* [[Intro to Programming]]&lt;br /&gt;
* [[AVR Microcontroller Class 2011]]&lt;br /&gt;
* [[Great Global Hackerspace Challenge]]&lt;br /&gt;
* [[Linux Class]]&lt;br /&gt;
* [[Bike Maintenance Class]]&lt;br /&gt;
* [[HacDC Spaceblimp 5]]&lt;br /&gt;
* [[Robotics Class 2011]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:Community]] ===&lt;br /&gt;
Pages on people in our community :&lt;br /&gt;
* [[:Category:Members | Member User Pages]] &lt;br /&gt;
* [[:Category:Friends | Friends of HacDC]]&lt;br /&gt;
* [[Heroes | Heroes and people who inspire us]]&lt;br /&gt;
&lt;br /&gt;
=== [[:Category:Policy]] ===&lt;br /&gt;
Our Policy Manual is divided into the following subcategories:&lt;br /&gt;
* [[Articles_of_Incorporation|Articles of Incorporation]]&lt;br /&gt;
* [[Bylaws]]&lt;br /&gt;
* [[MIBS_Simplified_Rules_of_Coordinated_Consensus_through_Chaos | Meeting Rules]]&lt;br /&gt;
* [[Privacy_Policy | Privacy Policy]]&lt;br /&gt;
* [[Resource_Use_Policy | Resource Use Policy]]&lt;br /&gt;
* [[Resource_Disposal | Resource Disposal Policy]]&lt;br /&gt;
* [[:Category:Communications Policy | Communications Policy]]&lt;br /&gt;
* [[Licensing_Policy | Licensing Policy]]&lt;br /&gt;
&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=GrindDC&amp;diff=9095</id>
		<title>GrindDC</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=GrindDC&amp;diff=9095"/>
		<updated>2013-03-15T15:40:31Z</updated>

		<summary type="html">&lt;p&gt;Nock: Redirecting GrindDC to Category:GrindDC where the real info lives&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;#REDIRECT [[:Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=9091</id>
		<title>Category:Meatups</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=9091"/>
		<updated>2013-03-13T15:52:59Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some attendees regularly show up earlier that 7:30p and folks typically trickle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
= Future Meatups =&lt;br /&gt;
&lt;br /&gt;
We mainly use Meetup.com to organize our meetings now. For the latest info, checkout: http://www.meetup.com/hac-dc/&lt;br /&gt;
&lt;br /&gt;
= Notes from Recent Meatups =&lt;br /&gt;
[[Meatup Jan 17 2013]]&lt;br /&gt;
[[Meatup Nov 29 2012]]&lt;br /&gt;
[[Meatup Nov 15 2012]]&lt;br /&gt;
[[Meatup Nov 8 2012]]&lt;br /&gt;
[[Meatup Nov 1 2012]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=9090</id>
		<title>User:Nocko</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=9090"/>
		<updated>2013-03-13T15:50:53Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* Experience */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Image:nocko.jpg|thumb|right|Hugging a Lego&amp;amp;trade; Wookie]]&lt;br /&gt;
&lt;br /&gt;
Alias: nocko&lt;br /&gt;
&lt;br /&gt;
Real Name: Shawn Nock&lt;br /&gt;
&lt;br /&gt;
Email: nock at nocko dot se&lt;br /&gt;
&lt;br /&gt;
IRC: nocko on #hacdc, ##biohack on freenode&lt;br /&gt;
&lt;br /&gt;
URL: https://nocko.se/&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:Members]]&lt;br /&gt;
[[Category:BOD]]&lt;br /&gt;
&lt;br /&gt;
== Projects ==&lt;br /&gt;
&lt;br /&gt;
* [[GrindDC]]&lt;br /&gt;
&lt;br /&gt;
== Interests ==&lt;br /&gt;
&lt;br /&gt;
* HPC (High Performance Computing)&lt;br /&gt;
* DIYBio / DIY Biomedical Engineering&lt;br /&gt;
&lt;br /&gt;
== Experience ==&lt;br /&gt;
&lt;br /&gt;
* Broadcast Engingeer at [http://www.azpm.org/ Arizona Public Media]&lt;br /&gt;
** Electronics tinkering&lt;br /&gt;
** Basic RF Engineering&lt;br /&gt;
** Broadcast Automation Programming&lt;br /&gt;
* Systems Programmer, Sr. at the [http://www.arizona.edu Univ. of AZ]&lt;br /&gt;
** SAN Storage Administrator&lt;br /&gt;
** Mail System Admin&lt;br /&gt;
** HPC Team&lt;br /&gt;
* Currently at [http://cfmi.georgetown.edu Center for Function and Molecular Imaging] and a bunch of other neuroscience labs at Georgetown University Medical Center&lt;br /&gt;
** Research support, Programming&lt;br /&gt;
** Linux sysadmin for image analysis cluster and glusterfs storage cluster.&lt;br /&gt;
&lt;br /&gt;
== Other ==&lt;br /&gt;
{|&lt;br /&gt;
|[[Image:nocko2.jpg|thumb|This is the cover of my next album (ha!) taken in my native Sonoran Desert.]]&lt;br /&gt;
|[[Image:nocko3.jpg|thumb|upright|There isn&#039;t much to do in the desert sometimes, so we make up sports. Here I am trying to jump over a sahuaro.]]&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=9089</id>
		<title>User:Nocko</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=9089"/>
		<updated>2013-03-13T15:44:18Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Image:nocko.jpg|thumb|right|Hugging a Lego&amp;amp;trade; Wookie]]&lt;br /&gt;
&lt;br /&gt;
Alias: nocko&lt;br /&gt;
&lt;br /&gt;
Real Name: Shawn Nock&lt;br /&gt;
&lt;br /&gt;
Email: nock at nocko dot se&lt;br /&gt;
&lt;br /&gt;
IRC: nocko on #hacdc, ##biohack on freenode&lt;br /&gt;
&lt;br /&gt;
URL: https://nocko.se/&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:Members]]&lt;br /&gt;
[[Category:BOD]]&lt;br /&gt;
&lt;br /&gt;
== Projects ==&lt;br /&gt;
&lt;br /&gt;
* [[GrindDC]]&lt;br /&gt;
&lt;br /&gt;
== Interests ==&lt;br /&gt;
&lt;br /&gt;
* HPC (High Performance Computing)&lt;br /&gt;
* DIYBio / DIY Biomedical Engineering&lt;br /&gt;
&lt;br /&gt;
== Experience ==&lt;br /&gt;
&lt;br /&gt;
* Broadcast Engingeer at [http://www.azpm.org/ Arizona Public Media]&lt;br /&gt;
** Electronics tinkering&lt;br /&gt;
** Basic RF Engineering&lt;br /&gt;
** Broadcast Automation Programming&lt;br /&gt;
* Systems Programmer, Sr. at the [http://www.arizona.edu Univ. of AZ]&lt;br /&gt;
** SAN Storage Administrator&lt;br /&gt;
** Mail System Admin&lt;br /&gt;
** HPC Team&lt;br /&gt;
** Admin for hundreds of physical and virtual Linux boxen&lt;br /&gt;
** Managed the migration of 35k students to Google Apps for Education including writing software to migrate 3T of student E-Mail and a custom Javascript UI for user management.&lt;br /&gt;
* Currently at [http://cfmi.georgetown.edu Center for Function and Molecular Imaging] at Georgetown University Medical Center&lt;br /&gt;
** Research support for several Neuroscience labs&lt;br /&gt;
** Cluster support for image processing&lt;br /&gt;
== Other ==&lt;br /&gt;
{|&lt;br /&gt;
|[[Image:nocko2.jpg|thumb|This is the cover of my next album (ha!) taken in my native Sonoran Desert.]]&lt;br /&gt;
|[[Image:nocko3.jpg|thumb|upright|There isn&#039;t much to do in the desert sometimes, so we make up sports. Here I am trying to jump over a sahuaro.]]&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:BOD&amp;diff=9088</id>
		<title>Category:BOD</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:BOD&amp;diff=9088"/>
		<updated>2013-03-13T15:43:24Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Current [[Board of Directors]] ==&lt;br /&gt;
&lt;br /&gt;
Below is a list of who currently holds positions on the board of directors.&lt;br /&gt;
&lt;br /&gt;
{|&lt;br /&gt;
|-&lt;br /&gt;
! Title&lt;br /&gt;
! Name&lt;br /&gt;
|-&lt;br /&gt;
| [[President]]&lt;br /&gt;
| [[User:Sitwon|Ben Mendis]]&lt;br /&gt;
|-&lt;br /&gt;
| [[Vice President]]&lt;br /&gt;
| [[User:Haxwithaxe|Chris]]&lt;br /&gt;
|-&lt;br /&gt;
| [[Secretary]]&lt;br /&gt;
| [[User:Gatohaus|David McInnis]]&lt;br /&gt;
|-&lt;br /&gt;
| [[Treasurer]]&lt;br /&gt;
| [[User:Katie|Katie]]&lt;br /&gt;
|-&lt;br /&gt;
| [[At Large Director]]&lt;br /&gt;
| Reuven&lt;br /&gt;
|-&lt;br /&gt;
| [[At Large Director]]&lt;br /&gt;
| [[User:Nocko|Shawn Nock]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
[[Category:People]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Annual_Meeting_2013&amp;diff=9087</id>
		<title>Annual Meeting 2013</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Annual_Meeting_2013&amp;diff=9087"/>
		<updated>2013-03-13T15:41:56Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* GrindDC (HacDC Biohacking Group) */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:Meeting Minutes]]&lt;br /&gt;
== Purpose ==&lt;br /&gt;
&lt;br /&gt;
From the HacDC Bylaws, Article III, Section 2:&lt;br /&gt;
:At the annual meeting, the voting members shall elect the Board of Directors, review and vote on the standing rules and policies of the corporation, receive reports on the activities of the corporation, approve the budget and determine the direction of corporation in the coming year.&lt;br /&gt;
&lt;br /&gt;
This meeting will also serve as the monthly meeting for the month of March.&lt;br /&gt;
&lt;br /&gt;
== Time and Location == &lt;br /&gt;
March 12, 2013&lt;br /&gt;
&lt;br /&gt;
Meeting called to order at 7:45 p.m. by Ben the Pyrate&lt;br /&gt;
&lt;br /&gt;
Members Present: Ben, Dan, Shawn, Dave, mirage335, Loki, Bryce, Chris, Reuven, Shahar, Tim D., Phil W, Phil S., Brad, Alberto, Katie, Tim Slagle, David Whiteis, Martin, Nick B., Justin Myers, Jon H, Jamie Ai, William Gibb, Andy Ta&lt;br /&gt;
&lt;br /&gt;
Others Present: Logan, Graham&lt;br /&gt;
&lt;br /&gt;
[[Quorum]] met? yes&lt;br /&gt;
&lt;br /&gt;
== Approval of Previous Meeting&#039;s Minutes ==&lt;br /&gt;
[[Regular Member Meeting 2013 02 12]] Approved unanimously.&lt;br /&gt;
&lt;br /&gt;
== Recognition ==&lt;br /&gt;
&lt;br /&gt;
Eric for being our president. Even if he didn&#039;t show up tonight. :P&lt;br /&gt;
&lt;br /&gt;
Tim Slagle for being treasurer. And proposing Project Awesome.&lt;br /&gt;
&lt;br /&gt;
And the entire board.&lt;br /&gt;
&lt;br /&gt;
== Director Reports ==&lt;br /&gt;
&lt;br /&gt;
=== President&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Absent.&lt;br /&gt;
&lt;br /&gt;
=== Vice President&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Nothing to report.&lt;br /&gt;
&lt;br /&gt;
=== Treasurer&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Here is the financial summary spreadsheet for February 2013: [[File:HacDC_Financials_2013_02.pdf]].  We gained one new member (Philip Westlow).  The other two members voted in last meeting have not paid their dues yet.  We lost Stephen Beuttel &amp;lt;strike&amp;gt;and dropped Reuven Cohen after 4 months without dues payment&amp;lt;/strike&amp;gt;.  We had 55 paying members and 2 non-paying members.  Our dues revenue continues to meet our expenses again, and thanks to those that donate extra we had a regular (non-earmarked) monthly net of $563.&lt;br /&gt;
&lt;br /&gt;
Quorum is 14.&lt;br /&gt;
&lt;br /&gt;
==== Project Awesome ====&lt;br /&gt;
&lt;br /&gt;
We had a surplus so I am able to declare a $450 Project Awesome dividend and add $113 to our reserves.  Here is the Project Awesome spreadsheet for February: [[File:HacDC_PA_Projects-2013_02.pdf]].  Thanks to everyone that voted for projects in February, there are now nine votes total.&lt;br /&gt;
&lt;br /&gt;
There have been no reports for Project 3DP (3D Printing, contact Andy Ta) for the last two months so the project is suspended and will get no additional funding.  If there is no report for next month it will be &#039;&#039;&#039;cancelled&#039;&#039;&#039; and any funds returned to the general.  Andy, if you are out there, file a report or have someone else do it!  And if you don&#039;t think you&#039;ll want to continue as coordinator, please turn it over to someone else.&lt;br /&gt;
&lt;br /&gt;
=== Secretary&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Announcements, membership database.&lt;br /&gt;
&lt;br /&gt;
=== Director-at-Large Reports ===&lt;br /&gt;
====Martin====&lt;br /&gt;
&lt;br /&gt;
Dan, Hax and Martin attended VWS Winterfest. Brought in $353 selling unwanted junk from HacDC. Lots of people were interested in finding out about HacDC.&lt;br /&gt;
&lt;br /&gt;
====Andy====&lt;br /&gt;
&lt;br /&gt;
Absent.&lt;br /&gt;
&lt;br /&gt;
== [[:Category:Project_Awesome|Project Awesome]] Reports ==&lt;br /&gt;
&lt;br /&gt;
=== Project LASER ===&lt;br /&gt;
&lt;br /&gt;
A bunch of research was done, resulting in a comparison [https://docs.google.com/spreadsheet/ccc?key=0Ai_FSnJ6DCsUdEpPdDJhM2Y0WUQ5eEw4TzRHMm84SWc&amp;amp;usp=sharing| spreadsheet] and more [[LaserCutterLinks|links]] to manufacturers and articles.  HacDC&#039;s front door is 30.5 inches wide which limits our choices substantially.&lt;br /&gt;
&lt;br /&gt;
=== Project BYZANTIUM ===&lt;br /&gt;
&lt;br /&gt;
Won a $10K grant (InformSec)! Can be spent on ham equipment, raspberry pis, macbook and macbook air. Also on CDs. The money will go through HacDC.&lt;br /&gt;
&lt;br /&gt;
Haven&#039;t heard back about FEMA grant (no applicants have).&lt;br /&gt;
&lt;br /&gt;
=== Project KITBUILD ===&lt;br /&gt;
&lt;br /&gt;
Earmarked balance large enough to pay for some tools and supplies, need to check out existing bin to see what we already have available.&lt;br /&gt;
&lt;br /&gt;
=== Project 3DP ===&lt;br /&gt;
&lt;br /&gt;
Do we want to keep buying plastic? Andy will pass the baton to mirage335 as coordinator.&lt;br /&gt;
&lt;br /&gt;
== Member Reports ==&lt;br /&gt;
=== Shawn Nock ===&lt;br /&gt;
GrindDC (HacDC Biohacking Group) hasn&#039;t been active for an entire year yet... but we&#039;ve made impressive progress. A functional Biosignal Amp (http://mirage335.dyndns.org/wiki/Mirage335BiosignalAmp), several versions of tDCS (https://github.com/nocko/tdcs), Implant Design (https://github.com/nocko/heledd/tree/master/hardware), a temperature controlled bath for biomaterials testing. Our Grinder nights at the space regularly attract 8-12 attendees. &lt;br /&gt;
&lt;br /&gt;
We&#039;re also in the process of organizing a SMT soldering class in for HacDC. Prototype teaching boards and partlists we&#039;re made (https://github.com/nocko/smt-practice) and a beta-quality seminar was held two months ago to test out our teaching chops.&lt;br /&gt;
&lt;br /&gt;
Challenges moving forward:&lt;br /&gt;
* Expanding into DIYBio: Safety (MSDS/right-to-know documentation), autoclave and lab glassware purchases, reagent purchase and storage.&lt;br /&gt;
* Heavy interest in Qualified Self projects specifically with respect to Smartphone integration (writing apps and developing sensors).&lt;br /&gt;
* Electro-physiology and DIY EEG/EMG: Designing analysis software and novel applications for the Biosignal Amp Mirage designed.&lt;br /&gt;
&lt;br /&gt;
=== Dan Barlow ===&lt;br /&gt;
&lt;br /&gt;
Have been telling you about Jon Singer&#039;s moving adventure. Do you know anyone who wants a transformer (designed to be immersed in oil)? Give Dan feedback about what HacDC wants/needs.&lt;br /&gt;
&lt;br /&gt;
=== Philip ===&lt;br /&gt;
&lt;br /&gt;
See e-mail. (Looking for hardware for old video games for an electronic literature showcase.)&lt;br /&gt;
&lt;br /&gt;
=== David Whiteis ===&lt;br /&gt;
&lt;br /&gt;
[[F3-robot]] (used to sequence human genome). Brought stuff that can be claimed but not left in the space.&lt;br /&gt;
&lt;br /&gt;
=== mirage335 ===&lt;br /&gt;
&lt;br /&gt;
Would like laptops for HARC. Offline discussion.&lt;br /&gt;
&lt;br /&gt;
Occupancy sensor is working fine.&lt;br /&gt;
&lt;br /&gt;
=== Martin ===&lt;br /&gt;
&lt;br /&gt;
There are new HARC postcards that will be sent to FCC license-holders in DC.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Old Business ==&lt;br /&gt;
None.&lt;br /&gt;
&lt;br /&gt;
== New Business ==&lt;br /&gt;
=== Approve new Standing Rules ===&lt;br /&gt;
Because the Standing Rules are not fully completed and we haven&#039;t had much time to discuss them among the members before voting, we can just vote on the first Article today - [[Proposed Standing Rules#Article_I:_Voting|Voting]].  That will give us the ability to continue edits and discussions, and vote on the other parts of the Standing Rules at future monthly member meetings.&lt;br /&gt;
&lt;br /&gt;
Unanimously approved.&lt;br /&gt;
&lt;br /&gt;
=== Anti-Harassment Policy and Diversity Statement ===&lt;br /&gt;
[[Anti-Harassment Policy]] and [[Diversity Statement]] need to be voted on.&lt;br /&gt;
&lt;br /&gt;
Ben read the prepared statement [insert statement here].&lt;br /&gt;
&lt;br /&gt;
Alberto thought it was bad to end an ongoing discussion. It was a philosophical issue at stake, not big enough to stop the conversation.&lt;br /&gt;
&lt;br /&gt;
Loki proposes a working committee be formed from selected members to form a version of the Anti-Harassment Policy that has broader consensus.&lt;br /&gt;
&lt;br /&gt;
Reuven says limits for the intensity of conversations should be looked into.&lt;br /&gt;
&lt;br /&gt;
Jon urges people to keep conversation on topic on the members list. &lt;br /&gt;
&lt;br /&gt;
Doc says this problem crops up in other communities. Invoking the principle of Buddhist Right Speech seems to fix it. He can post some links to the wiki about how it has been implemented in other communities.&lt;br /&gt;
&lt;br /&gt;
Loki gave a one-minute summary arguing in favor of Proposal 2. New member Graham gave a one-minute summary arguing in favor of Proposal 1.&lt;br /&gt;
&lt;br /&gt;
Two people voted to defer. Two people voted for Proposal 2. Everyone else voted for Proposal 1. Proposal 1 is approved.&lt;br /&gt;
&lt;br /&gt;
Diversity Statement approved unanimously.&lt;br /&gt;
&lt;br /&gt;
== Board of Directors Elections ==&lt;br /&gt;
=== President ===&lt;br /&gt;
&lt;br /&gt;
Ben has been nominated and wins by default. &lt;br /&gt;
&lt;br /&gt;
=== Vice-President ===&lt;br /&gt;
&lt;br /&gt;
Shahar and Chris and Reuven have been nominated. Chris wins.&lt;br /&gt;
&lt;br /&gt;
=== Treasurer ===&lt;br /&gt;
&lt;br /&gt;
Katie has been nominated and wins by default.&lt;br /&gt;
&lt;br /&gt;
=== Secretary ===&lt;br /&gt;
&lt;br /&gt;
David Mc has been nominated and wins by default.&lt;br /&gt;
&lt;br /&gt;
=== At-Large Directors (two) ===&lt;br /&gt;
&lt;br /&gt;
Shawn Nock and Reuven are nominated and win by default.&lt;br /&gt;
&lt;br /&gt;
== New Members ==&lt;br /&gt;
&lt;br /&gt;
Logan is originally from DC and just moved back here about a year ago. Physics background. Programming job. Been coming to GrindDC meetups. Approved.&lt;br /&gt;
&lt;br /&gt;
Graham moved to DC 3.5 years ago. Has a 3D printer. Does electronics work for fun. Approved.&lt;br /&gt;
&lt;br /&gt;
== Adjournment ==&lt;br /&gt;
&lt;br /&gt;
Adjourned at 9:23 pm&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Annual_Meeting_2013&amp;diff=9072</id>
		<title>Annual Meeting 2013</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Annual_Meeting_2013&amp;diff=9072"/>
		<updated>2013-03-11T16:14:44Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* GrindDC (HacDC Biohacking Group) */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:Meeting Minutes]]&lt;br /&gt;
== Purpose ==&lt;br /&gt;
&lt;br /&gt;
From the HacDC Bylaws, Article III, Section 2:&lt;br /&gt;
:At the annual meeting, the voting members shall elect the Board of Directors, review and vote on the standing rules and policies of the corporation, receive reports on the activities of the corporation, approve the budget and determine the direction of corporation in the coming year.&lt;br /&gt;
&lt;br /&gt;
This meeting will also serve as the monthly meeting for the month of March.&lt;br /&gt;
&lt;br /&gt;
== Time and Location == &lt;br /&gt;
March 12, 2013&lt;br /&gt;
&lt;br /&gt;
Meeting called to order at x:xx p.m. by &lt;br /&gt;
&lt;br /&gt;
Members Present: &lt;br /&gt;
&lt;br /&gt;
Others Present:&lt;br /&gt;
&lt;br /&gt;
[[Quorum]] met? &lt;br /&gt;
&lt;br /&gt;
== Approval of Previous Meeting&#039;s Minutes ==&lt;br /&gt;
[[Regular Member Meeting 2013 02 12]] &lt;br /&gt;
&lt;br /&gt;
== Recognition ==&lt;br /&gt;
&lt;br /&gt;
== Director Reports ==&lt;br /&gt;
&lt;br /&gt;
=== President&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
=== Vice President&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Nothing to report.&lt;br /&gt;
&lt;br /&gt;
=== Treasurer&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Here is the financial summary spreadsheet for February 2013: [[File:HacDC_Financials_2013_02.pdf]].  We gained one new member (Philip Westlow).  The other two members voted in last meeting have not paid their dues yet.  We lost Stephen Beuttel and dropped Reuven Cohen after 4 months without dues payment.  We had 55 paying members and 2 non-paying members.  Our dues revenue continues to meet our expenses again, and thanks to those that donate extra we had a regular (non-earmarked) monthly net of $563.&lt;br /&gt;
&lt;br /&gt;
Quorum is 14.&lt;br /&gt;
&lt;br /&gt;
==== Project Awesome ====&lt;br /&gt;
&lt;br /&gt;
We had a surplus so I am able to declare a $450 Project Awesome dividend and add $113 to our reserves.  Here is the Project Awesome spreadsheet for February: [[File:HacDC_PA_Projects-2013_02.pdf]].  Thanks to everyone that voted for projects in February, there are now nine votes total.&lt;br /&gt;
&lt;br /&gt;
There have been no reports for Project 3DP (3D Printing, contact Andy Ta) for the last two months so the project is suspended and will get no additional funding.  If there is no report for next month it will be &#039;&#039;&#039;cancelled&#039;&#039;&#039; and any funds returned to the general.  Andy, if you are out there, file a report or have someone else do it!  And if you don&#039;t think you&#039;ll want to continue as coordinator, please turn it over to someone else.&lt;br /&gt;
&lt;br /&gt;
=== Secretary&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
=== Director-at-Large Reports ===&lt;br /&gt;
====Martin====&lt;br /&gt;
&lt;br /&gt;
====Andy====&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== [[:Category:Project_Awesome|Project Awesome]] Reports ==&lt;br /&gt;
&lt;br /&gt;
=== Project LASER ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Project BYZANTIUM ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Project KITBUILD ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Project 3DP ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Member Reports ==&lt;br /&gt;
=== GrindDC (HacDC Biohacking Group) ===&lt;br /&gt;
GrindDC hasn&#039;t been active for an entire year yet... but we&#039;ve made impressive progress. A functional Biosignal Amp (http://mirage335.dyndns.org/wiki/Mirage335BiosignalAmp), several versions of tDCS (https://github.com/nocko/tdcs), Implant Design (https://github.com/nocko/heledd/tree/master/hardware), a temperature controlled bath for biomaterials testing. Our Grinder nights at the space regularly attract 8-12 attendees. &lt;br /&gt;
&lt;br /&gt;
We&#039;re also in the process of organizing a SMT soldering class in for HacDC. Prototype teaching boards and partlists we&#039;re made (https://github.com/nocko/smt-practice) and a beta-quality seminar was held two months ago to test out our teaching chops.&lt;br /&gt;
&lt;br /&gt;
Challenges moving forward:&lt;br /&gt;
* Expanding into DIYBio: Safety (MSDS/right-to-know documentation), autoclave and lab glassware purchases, reagent purchase and storage.&lt;br /&gt;
* Heavy interest in Qualified Self projects specifically with respect to Smartphone integration (writing apps and developing sensors).&lt;br /&gt;
* Electro-physiology and DIY EEG/EMG: Designing analysis software and novel applications for the Biosignal Amp Mirage designed.&lt;br /&gt;
--[[User:Nock|Shawn Nock (OpenPGP: 0x65118FA5)]] 09:14, 11 March 2013 (PDT)&lt;br /&gt;
&lt;br /&gt;
== Old Business ==&lt;br /&gt;
None.&lt;br /&gt;
&lt;br /&gt;
== New Business ==&lt;br /&gt;
=== Approve new Standing Rules ===&lt;br /&gt;
Because the Standing Rules are not fully completed and we haven&#039;t had much time to discuss them among the members before voting, we can just vote on the first Article today - [[Proposed Standing Rules#Article_I:_Voting|Voting]].  That will give us the ability to continue edits and discussions, and vote on the other parts of the Standing Rules at future monthly member meetings.&lt;br /&gt;
&lt;br /&gt;
=== Anti-Harassment Policy and Diversity Statement ===&lt;br /&gt;
[[Anti-Harassment Policy]] and [[Diversity Statement]] need to be voted on.&lt;br /&gt;
&lt;br /&gt;
== Board of Directors Elections ==&lt;br /&gt;
=== President ===&lt;br /&gt;
=== Vice-President ===&lt;br /&gt;
=== Treasurer ===&lt;br /&gt;
=== Secretary ===&lt;br /&gt;
=== At-Large Directors (two) ===&lt;br /&gt;
&lt;br /&gt;
== New Members ==&lt;br /&gt;
&lt;br /&gt;
== Adjournment ==&lt;br /&gt;
&lt;br /&gt;
Adjourned at x:xx pm&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Annual_Meeting_2013&amp;diff=9071</id>
		<title>Annual Meeting 2013</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Annual_Meeting_2013&amp;diff=9071"/>
		<updated>2013-03-11T15:58:44Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* Member Reports */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:Meeting Minutes]]&lt;br /&gt;
== Purpose ==&lt;br /&gt;
&lt;br /&gt;
From the HacDC Bylaws, Article III, Section 2:&lt;br /&gt;
:At the annual meeting, the voting members shall elect the Board of Directors, review and vote on the standing rules and policies of the corporation, receive reports on the activities of the corporation, approve the budget and determine the direction of corporation in the coming year.&lt;br /&gt;
&lt;br /&gt;
This meeting will also serve as the monthly meeting for the month of March.&lt;br /&gt;
&lt;br /&gt;
== Time and Location == &lt;br /&gt;
March 12, 2013&lt;br /&gt;
&lt;br /&gt;
Meeting called to order at x:xx p.m. by &lt;br /&gt;
&lt;br /&gt;
Members Present: &lt;br /&gt;
&lt;br /&gt;
Others Present:&lt;br /&gt;
&lt;br /&gt;
[[Quorum]] met? &lt;br /&gt;
&lt;br /&gt;
== Approval of Previous Meeting&#039;s Minutes ==&lt;br /&gt;
[[Regular Member Meeting 2013 02 12]] &lt;br /&gt;
&lt;br /&gt;
== Recognition ==&lt;br /&gt;
&lt;br /&gt;
== Director Reports ==&lt;br /&gt;
&lt;br /&gt;
=== President&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
=== Vice President&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Nothing to report.&lt;br /&gt;
&lt;br /&gt;
=== Treasurer&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
Here is the financial summary spreadsheet for February 2013: [[File:HacDC_Financials_2013_02.pdf]].  We gained one new member (Philip Westlow).  The other two members voted in last meeting have not paid their dues yet.  We lost Stephen Beuttel and dropped Reuven Cohen after 4 months without dues payment.  We had 55 paying members and 2 non-paying members.  Our dues revenue continues to meet our expenses again, and thanks to those that donate extra we had a regular (non-earmarked) monthly net of $563.&lt;br /&gt;
&lt;br /&gt;
Quorum is 14.&lt;br /&gt;
&lt;br /&gt;
==== Project Awesome ====&lt;br /&gt;
&lt;br /&gt;
We had a surplus so I am able to declare a $450 Project Awesome dividend and add $113 to our reserves.  Here is the Project Awesome spreadsheet for February: [[File:HacDC_PA_Projects-2013_02.pdf]].  Thanks to everyone that voted for projects in February, there are now nine votes total.&lt;br /&gt;
&lt;br /&gt;
There have been no reports for Project 3DP (3D Printing, contact Andy Ta) for the last two months so the project is suspended and will get no additional funding.  If there is no report for next month it will be &#039;&#039;&#039;cancelled&#039;&#039;&#039; and any funds returned to the general.  Andy, if you are out there, file a report or have someone else do it!  And if you don&#039;t think you&#039;ll want to continue as coordinator, please turn it over to someone else.&lt;br /&gt;
&lt;br /&gt;
=== Secretary&#039;s Report ===&lt;br /&gt;
&lt;br /&gt;
=== Director-at-Large Reports ===&lt;br /&gt;
====Martin====&lt;br /&gt;
&lt;br /&gt;
====Andy====&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== [[:Category:Project_Awesome|Project Awesome]] Reports ==&lt;br /&gt;
&lt;br /&gt;
=== Project LASER ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Project BYZANTIUM ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Project KITBUILD ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Project 3DP ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Member Reports ==&lt;br /&gt;
=== GrindDC (HacDC Biohacking Group) ===&lt;br /&gt;
Biosignal Amp, tDCS, Implant Design, Biomaterials Testing - [[User:Nocko|Nocko]]&lt;br /&gt;
&lt;br /&gt;
== Old Business ==&lt;br /&gt;
None.&lt;br /&gt;
&lt;br /&gt;
== New Business ==&lt;br /&gt;
=== Approve new Standing Rules ===&lt;br /&gt;
Because the Standing Rules are not fully completed and we haven&#039;t had much time to discuss them among the members before voting, we can just vote on the first Article today - [[Proposed Standing Rules#Article_I:_Voting|Voting]].  That will give us the ability to continue edits and discussions, and vote on the other parts of the Standing Rules at future monthly member meetings.&lt;br /&gt;
&lt;br /&gt;
=== Anti-Harassment Policy and Diversity Statement ===&lt;br /&gt;
[[Anti-Harassment Policy]] and [[Diversity Statement]] need to be voted on.&lt;br /&gt;
&lt;br /&gt;
== Board of Directors Elections ==&lt;br /&gt;
=== President ===&lt;br /&gt;
=== Vice-President ===&lt;br /&gt;
=== Treasurer ===&lt;br /&gt;
=== Secretary ===&lt;br /&gt;
=== At-Large Directors (two) ===&lt;br /&gt;
&lt;br /&gt;
== New Members ==&lt;br /&gt;
&lt;br /&gt;
== Adjournment ==&lt;br /&gt;
&lt;br /&gt;
Adjourned at x:xx pm&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Talk:CNC_Mill&amp;diff=8909</id>
		<title>Talk:CNC Mill</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Talk:CNC_Mill&amp;diff=8909"/>
		<updated>2013-02-03T21:29:35Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* Config File */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Config File==&lt;br /&gt;
Should this section be deleted now? Some time prior to 03/26/12, the mill seemed to start at 0,0,0, as described but that changed as of of 03/26/12. Now, EMC2 seems to know the mill&#039;s actual position (even if the simulator is jogged with the mill turned off). Only &amp;quot;Touch Off&amp;quot; really changes the coordinates.&lt;br /&gt;
&lt;br /&gt;
== Page refactor for new software post-TJ refurb ==&lt;br /&gt;
I updated this page to reflect the fact that TJ reconfigured the mill computer to WindowsXP and Mach3  (instead of Linux/EMC2/Axis)&lt;br /&gt;
[[User:Nock|Shawn Nock (OpenPGP: 0x65118FA5)]] 13:29, 3 February 2013 (PST)&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=CNC_Mill&amp;diff=8908</id>
		<title>CNC Mill</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=CNC_Mill&amp;diff=8908"/>
		<updated>2013-02-03T21:27:25Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:CNC_Mill]]&lt;br /&gt;
===Type===&lt;br /&gt;
Appears to be a [http://www.taigtools.com/cmill.html Taig CNC Mill].&lt;br /&gt;
&lt;br /&gt;
Currently running [http://www.machsupport.com/ ArtSoft Mach3] &lt;br /&gt;
&lt;br /&gt;
=== Terms ===&lt;br /&gt;
&lt;br /&gt;
* Computer Numerical Control (CNC) - The ability to control a machine using mathematical commands&lt;br /&gt;
* Computer Aided Design (CAD) - Software which generates a model which a machine can translate into tooling commands for manufacturing.&lt;br /&gt;
* Computer Aided Manufacturing (CAM) - The actual process of production from file to finished product.&lt;br /&gt;
* Tooling/tools - The bits used in a mill to actually&lt;br /&gt;
* Milling - The use of a spinning piece of metal to shape an object through calculated removal of a media, normally via an X / Y / Z axis.&lt;br /&gt;
* Manual Data Input (MDI) - A method for doing manual milling with precise control commands.&lt;br /&gt;
* Lathing - The use of a &amp;quot;static&amp;quot; piece of metal to shape an object through calculated removal of a media which is in (usually) a circular motion.&lt;br /&gt;
* [http://www.machsupport.com/ Mach3] - The software used to translate G Code into electrical pulses which can be used by a mill.&lt;br /&gt;
&lt;br /&gt;
=== Getting Started ===&lt;br /&gt;
&lt;br /&gt;
To initially get started with the CNC mill, it&#039;s helpful to have a basic grasp of G Code.  How better to get started with this than to begin playing.&lt;br /&gt;
&lt;br /&gt;
==== Turning on the Mill ====&lt;br /&gt;
When turning on the mill there are three primary &amp;quot;light switch&amp;quot; style switches which should be turned on.  The first is on the back of the black box labeled &amp;quot;MicroProto Systems, MicroMill DSLS 3000&amp;quot;.  This switch is located on the back to the right side (imagine reaching around on the rear right).  Flipping the switch &amp;quot;up&amp;quot; should turn this on.&lt;br /&gt;
&lt;br /&gt;
Next, turn on the main control to the spindle.  This is achieved via the light switch on the M3/M5 box.  Turn this to the &amp;quot;on&amp;quot; position (flicking it towards the label M3/M5).&lt;br /&gt;
&lt;br /&gt;
Finally, turn on the spindle on the actual mill.  This is in a blue enameled box residing on the Z axis.  Flip this switch &amp;quot;up&amp;quot;.  If the spindle immediately starts spinning, this is because someone didn&#039;t send the control command to stop it.  This isn&#039;t a problem, but we will want to stop it sooner than later.  We will cover this in the next section. &lt;br /&gt;
&lt;br /&gt;
To avoid unexpectedly turning on the spindle motor when powering on the machine, wait to flip the power switch to the on position until after EMC2 is running. This will ensure that the parallel port is in the appropriate state according to the configuration file to keep all motors off by default.&lt;br /&gt;
&lt;br /&gt;
==== Starting Mach3 ====&lt;br /&gt;
This can be done by using the icon on the desktop.&lt;br /&gt;
&lt;br /&gt;
==== Spindle control and Emergency Stop ====&lt;br /&gt;
&lt;br /&gt;
If the tooling is clear of all obstacles, you can press &#039;&#039;F5&#039;&#039; to toggle the spindle motor on and off. &lt;br /&gt;
&lt;br /&gt;
The switch on the right side of the mill, near the top will cut power to the spindle. This is the best way to shut it down in an emergency... but note that the axis can still move after the switch is thrown. Pressing &#039;&#039;Reset&#039;&#039; in the interface will signal Mach3 to make an &#039;&#039;Emergency Stop&#039;&#039;. You&#039;ll see the &#039;&#039;Reset&#039;&#039; button blink, and the status line at the bottom will read &amp;quot;E-Stop Triggered, press reset...&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
==== Making our first motions ====&lt;br /&gt;
&lt;br /&gt;
===== Jog Controls =====&lt;br /&gt;
To start, we&#039;re going to use the &amp;quot;jog&amp;quot; functions to move the milling cutter around and get a feel for what is &amp;quot;positive&amp;quot; and &amp;quot;negative&amp;quot; on the X, Y, &amp;amp; Z axis.&lt;br /&gt;
&lt;br /&gt;
Especially, when starting out, limit motion to the X and Y axis as this has the least potential for damaging our tooling (aka, breaking a bit).  As you get a feel for what&#039;s positive and negative, we will start using larger motions.&lt;br /&gt;
&lt;br /&gt;
To start, hit the &amp;quot;tab&amp;quot; key to bring up the Jog controls. The main settings on this panel are the &#039;&#039;Jog mode&#039;&#039;, which can be either &#039;&#039;continuous&#039;&#039; or &#039;&#039;step&#039;&#039;. In continuous mode, holding down the motion keys (described below) will make the axis move continuously, and quite a lot. In step mode, pressing or holding the motion keys will move only a fixed step per key-press. The step distance is also configurable on the Jog control screen. You can hide the jog controls when not in use by pressing the &#039;&#039;Tab&#039;&#039; key.&lt;br /&gt;
&lt;br /&gt;
To start, select continuous mode in the jog controls and press the &#039;&#039;Left Arrow&#039;&#039; and &#039;&#039;Right Arrow&#039;&#039;. Notice that the mill table moves left and right. This is the X axis.  Next, press the &#039;&#039;Up arrow&#039;&#039; and &#039;&#039;Down Arrow&#039;&#039; keys briefly, notice that the mill table moves front to back. This is the Y axis. Finally, press the &#039;&#039;Page Up&#039;&#039; and &#039;&#039;Page Down&#039;&#039; keys briefly; notice that the spindle moves up and down. This is the Z axis.  As you were moving the milling cutter around, you&#039;ll notice that the coordinates are displayed in the main window.  This is where you can quickly survey where your tooling is located.&lt;br /&gt;
&lt;br /&gt;
===== Obligatory Setup =====&lt;br /&gt;
&lt;br /&gt;
Sometimes the &#039;&#039;Reset&#039;&#039; button in Mach3 will be flashing. This usually means that you exceeded the movement limits or speed of the mill and the controller has signaled Mach3 to stop. Often clicking reset is enough to clear this error. &lt;br /&gt;
&lt;br /&gt;
===== Mill Controller Crash =====&lt;br /&gt;
&lt;br /&gt;
Sometimes the controller will crash, this is usually evidenced by &#039;&#039;Reset&#039;&#039; complaining that it cannot clear a limit. It will offer a button that says &amp;quot;Fix this for me&amp;quot;. &amp;quot;Fix this for me&amp;quot; actually redefines what an error is in the software (e.g. if input low is defined as an error, then it will redifine error as input high). Instead of clicking &#039;&#039;Fix this&#039;&#039;, you should try turning off and on the mill controller using the switch on the rear, lower-right side. Clicking &#039;&#039;Reset&#039;&#039; again should clear the trouble.&lt;br /&gt;
&lt;br /&gt;
===== Advanced Manual Control - MDI (Manual Data Input) =====&lt;br /&gt;
Click on the MDI tab in the main Mach3 screen to the MDI Controls section.  Within this section (the line next to input) we can type in actual G Code to move our tooling around.  To start, we&#039;re going to use simple &amp;quot;go to&amp;quot; commands.  This will rapidly move the tool to the position that we tell it to.  Note, at any time, we can stop the execution of these commands by hitting the &amp;quot;stop&amp;quot; button on the screen or typing ALT-S on the keyboard.  The first command we will use is &amp;quot;rapid go to&amp;quot; or &amp;quot;g0&amp;quot;. As an example: make sure the tooling is well clear of the table using the jog controls and all axis are (roughly) centered. Reset all axis (X, Y, Z) to zero using the &#039;&#039;Zero Axis&#039;&#039; button located to the left of the current axis location. As you click zero axis, you should see the axis change to -0.0000.&lt;br /&gt;
&lt;br /&gt;
To make our first motion, let&#039;s move the X axis to position 0.5.  To do this, enter this command into the box marked &#039;&#039;Input&#039;&#039;:&lt;br /&gt;
&lt;br /&gt;
  g0 x0.5&lt;br /&gt;
&lt;br /&gt;
The X axis should begin moving and it should stop 0.5&amp;quot; to the right of it&#039;s initial position.&lt;br /&gt;
&lt;br /&gt;
Additionally, we can give multiple coordinates at once.  Now try the command:&lt;br /&gt;
&lt;br /&gt;
  g0 x0 y0&lt;br /&gt;
&lt;br /&gt;
This should send our tool back to the starting position.  This can make things go much, much faster for resetting back to the position that you started with the mill at.&lt;br /&gt;
&lt;br /&gt;
To have more fine grained control we can use the command &amp;quot;g1&amp;quot;.  There is nothing that G0 does which G1 cannot.  The only difference in syntax is that we specify the feed rate of the motion as the first option.  By default the mill is set to operate in inches per minute.  Thus, unless you change this (via g code) it should be assumed that this will be the unit of measure for your commands.&lt;br /&gt;
&lt;br /&gt;
Lets slowly raise our Z axis up one inch:&lt;br /&gt;
&lt;br /&gt;
  g1 f2 z1&lt;br /&gt;
&lt;br /&gt;
Note, since we were at a position approx 1 inch up and told the mill to return to zero at a rate of F2 or 2 inches per minute, it will take approximately 30 seconds for this command to complete.  Slow movement of the tool (especially when &#039;plunging&#039; the z axis is a good idea as it allows for time to hit the &amp;quot;esc&amp;quot; key if things start going horribly wrong).&lt;br /&gt;
&lt;br /&gt;
Now, let&#039;s build on some of these together:&lt;br /&gt;
&lt;br /&gt;
  g1 f10 x1 y1 z1&lt;br /&gt;
&lt;br /&gt;
Whoops, back to zero:&lt;br /&gt;
&lt;br /&gt;
  g1 f5 x0 y0 z0&lt;br /&gt;
&lt;br /&gt;
When moving back to zero you will see that the mill is moving half of the original speed (5 inches per minute rather than 10 inches per minute).&lt;br /&gt;
&lt;br /&gt;
Let&#039;s really open this thing up and see what it can do.  While watching this command move notice the &#039;&#039;feed rate&#039;&#039; indicator in the preview MDI tab.  This will allow you to see the actual speed of the tool.&lt;br /&gt;
&lt;br /&gt;
  g1 f50 x1 y1 z1&lt;br /&gt;
&lt;br /&gt;
Linear motion is great and all, but how about we dwell outside the euclidean space for a minute.  The next commands that we are going to learn are G2/G3.  G2 will make a clockwise arc while G3 will make a counterclockwise arc.  The command syntax is as follows:&lt;br /&gt;
&lt;br /&gt;
 *G2 - Command&lt;br /&gt;
 *Fx - Feedrate at X inches per minute&lt;br /&gt;
 *Xv - Destination X coordinate (in this case end at v)&lt;br /&gt;
 *Yw - Destination Y coordinate (in this case end at w)&lt;br /&gt;
 *Ix - X axis center point offset&lt;br /&gt;
 *Jy - Y axis center point offset&lt;br /&gt;
 *Za - Interpolated Z axis coordinate (optional)&lt;br /&gt;
&lt;br /&gt;
To start, lets make a circle:&lt;br /&gt;
&lt;br /&gt;
  g2 f5 x1 y0 i-0.5 j0&lt;br /&gt;
&lt;br /&gt;
Annnnd we fail.  This is because we&#039;ve given junk data to the mill.  Lets try that again making a circle.  Of course, to make a circle, we will want our beginning (1,1,1) to be the same as our destination (1,1,1) only changing the X axis center point offset.&lt;br /&gt;
&lt;br /&gt;
  g2 f5 x1 y1 i-0.5 j0&lt;br /&gt;
&lt;br /&gt;
Fun math bits... run that command again and note the &amp;quot;distance to go&amp;quot; or &amp;quot;DTG&amp;quot; in the preview area.  Note the distance at the immediate start of plotting our 1 inch diameter circle (2 * 0.5 X offset). This should be a predictable [http://en.wikipedia.org/wiki/Pi result]&lt;br /&gt;
&lt;br /&gt;
=== Tool Changing ===&lt;br /&gt;
Use a wrench to gently remove the chuck. Check the toolbox beneath the mill for different bits and other things as required.&lt;br /&gt;
&lt;br /&gt;
Little force should be required to tighten the chuck; it has been said that finger-tight is often sufficient.&lt;br /&gt;
&lt;br /&gt;
=== When you&#039;re done ===&lt;br /&gt;
&lt;br /&gt;
Please cleanup the mill area and place tooling back into the mill toolbox under the bench.&lt;br /&gt;
&lt;br /&gt;
Finally, turn off all three power switches noted above.&lt;br /&gt;
&lt;br /&gt;
Thanks&lt;br /&gt;
&lt;br /&gt;
=== Caution ===&lt;br /&gt;
Please avoid doing these things, unless you can deal with the consequences yourself.&lt;br /&gt;
&lt;br /&gt;
* Don&#039;t loosen the screws on the mill table. That wooden board must be precisely leveled, which can only be done by CNC milling it down.&lt;br /&gt;
* Don&#039;t run the mill too far off axis. The stepper motors will usually make a harsh grinding sound when this happens.&lt;br /&gt;
* Don&#039;t leave the mill completely unattended. Be prepared to hit the &#039;&#039;Reset&#039;&#039; key within at most a minute of hearing something go wrong.&lt;br /&gt;
* Obviously, don&#039;t put your hands in hazardous places.&lt;br /&gt;
&lt;br /&gt;
Otherwise, the mill is robust and newbie friendly.&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=CNC_Mill_Log&amp;diff=8907</id>
		<title>CNC Mill Log</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=CNC_Mill_Log&amp;diff=8907"/>
		<updated>2013-02-03T20:47:53Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* 2 Feb. 2013 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:CNC_Mill]]&lt;br /&gt;
When something goes wrong, its nice to note it here. Also nice to note any fixes (eg. resurfacing the milling platform).&lt;br /&gt;
&lt;br /&gt;
== 2 Feb. 2013 ==&lt;br /&gt;
&lt;br /&gt;
Settings on Mach3 were incorrect; communication with the mill controller was impossible. The following settings changes were made (and some fiddling done) and the mill appears to be functioning and calibrated well:&lt;br /&gt;
&lt;br /&gt;
*Changing the port to address 0x378 allowed the spindle control to function.&lt;br /&gt;
*Changing X,Y,Z,A drive and step ports to port 1 (0x378) and setting low trigger on axis X.&lt;br /&gt;
*Recalibrated &amp;quot;steps per&amp;quot; with the calibration wizard under &#039;&#039;settings&#039;&#039; using dial indicator (now set for ~16250).&lt;br /&gt;
&lt;br /&gt;
Note: Often restarting Mach3 seems to be required to actually update some of the port settings (although it pretends otherwise). Mill calibration was accurate to only ~0.003&amp;quot; (which maybe a limit imposed by the limited rigidity of the mill+stand).&lt;br /&gt;
&lt;br /&gt;
[[User:Nock|Shawn Nock (OpenPGP: 0x65118FA5)]] 12:47, 3 February 2013 (PST)&lt;br /&gt;
&lt;br /&gt;
== 22 Jan. 2013 ==&lt;br /&gt;
&lt;br /&gt;
*Major upgrades in progress thanks to TJ.&lt;br /&gt;
&lt;br /&gt;
== 10 July 2012 ==&lt;br /&gt;
&lt;br /&gt;
*Platform still needs replacing, but Barlow resurfaced the remaining usable area. At least now it is level again.&lt;br /&gt;
&lt;br /&gt;
== 28 Apr. 2012 ==&lt;br /&gt;
&lt;br /&gt;
*Someone accidentally resurfaced the milling platform (milled too deep). Now the platform needs replacing.&lt;br /&gt;
&lt;br /&gt;
== 11 Apr. 2012 ==&lt;br /&gt;
&lt;br /&gt;
*Milling platform is no longer level, thanks to the screws holding it down being loosened up. Needs resurfacing.&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=CNC_Mill_Log&amp;diff=8906</id>
		<title>CNC Mill Log</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=CNC_Mill_Log&amp;diff=8906"/>
		<updated>2013-02-03T20:47:03Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Category:CNC_Mill]]&lt;br /&gt;
When something goes wrong, its nice to note it here. Also nice to note any fixes (eg. resurfacing the milling platform).&lt;br /&gt;
&lt;br /&gt;
== 2 Feb. 2013 ==&lt;br /&gt;
&lt;br /&gt;
Settings on Mach3 were incorrect; communication with the mill controller was impossible. The following settings changes were made (and some fiddling done) and the mill appears to be functioning and calibrated well:&lt;br /&gt;
&lt;br /&gt;
*Changing the port to address 0x378 allowed the spindle control to function.&lt;br /&gt;
*Changing X,Y,Z,A drive and step ports to port 1 (0x378) and setting low trigger on axis X.&lt;br /&gt;
*Recalibrated &amp;quot;steps per&amp;quot; with the calibration wizard under &#039;&#039;settings&#039;&#039; using dial indicator (now set for ~16250).&lt;br /&gt;
&lt;br /&gt;
Note: Often restarting Mach3 seems to be required to actually update some of the port settings (although it pretends otherwise). Mill calibration was accurate to only ~0.003&amp;quot; (which maybe a limit imposed by the limited rigidity of the mill+stand).&lt;br /&gt;
&lt;br /&gt;
== 22 Jan. 2013 ==&lt;br /&gt;
&lt;br /&gt;
*Major upgrades in progress thanks to TJ.&lt;br /&gt;
&lt;br /&gt;
== 10 July 2012 ==&lt;br /&gt;
&lt;br /&gt;
*Platform still needs replacing, but Barlow resurfaced the remaining usable area. At least now it is level again.&lt;br /&gt;
&lt;br /&gt;
== 28 Apr. 2012 ==&lt;br /&gt;
&lt;br /&gt;
*Someone accidentally resurfaced the milling platform (milled too deep). Now the platform needs replacing.&lt;br /&gt;
&lt;br /&gt;
== 11 Apr. 2012 ==&lt;br /&gt;
&lt;br /&gt;
*Milling platform is no longer level, thanks to the screws holding it down being loosened up. Needs resurfacing.&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Jan_17_2013&amp;diff=8870</id>
		<title>Meatup Jan 17 2013</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Jan_17_2013&amp;diff=8870"/>
		<updated>2013-01-17T18:07:30Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Atendance =&lt;br /&gt;
*[[User:Nocko|Shawn]]&lt;br /&gt;
*Stuart&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
== Build a Temp controlled water bath ==&lt;br /&gt;
&lt;br /&gt;
Shawn brought the parts to build a simple temperature controlled water bath&lt;br /&gt;
* submersible pump&lt;br /&gt;
* 25A Relay&lt;br /&gt;
* PID temperature controller (with relay output)&lt;br /&gt;
* Immersion Heater&lt;br /&gt;
* Temperature probe&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== tDCS v4 Prototypes ==&lt;br /&gt;
&lt;br /&gt;
Report from tDCS human testing.&lt;br /&gt;
&lt;br /&gt;
== Biosignal Amp ==&lt;br /&gt;
&lt;br /&gt;
Boards delayed by holiday... should be here Monday. Parts order needs to go in soon, we&#039;ll decide on financing at the meeting.&lt;br /&gt;
&lt;br /&gt;
== SMT Soldering Class ==&lt;br /&gt;
&lt;br /&gt;
Prototype boards are in. Parts are ordered will probably arrive Friday. Boards will be showed off, etc.&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
&lt;br /&gt;
TBD&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Jan_17_2013&amp;diff=8869</id>
		<title>Meatup Jan 17 2013</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Jan_17_2013&amp;diff=8869"/>
		<updated>2013-01-17T18:05:10Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;= Atendance = *Shawn *Stuart  = New Business =  == Build a Temp controlled water bath ==  Shawn brought the parts to build a simple temperature controlled water ba...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Atendance =&lt;br /&gt;
*[[User:Nocko|Shawn]]&lt;br /&gt;
*Stuart&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
== Build a Temp controlled water bath ==&lt;br /&gt;
&lt;br /&gt;
Shawn brought the parts to build a simple temperature controlled water bath&lt;br /&gt;
* submersible pump&lt;br /&gt;
* 25A Relay&lt;br /&gt;
* PID temperature controller (with relay output)&lt;br /&gt;
* Immersion Heater&lt;br /&gt;
* Temperature probe&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== tDCS v4 Prototypes ==&lt;br /&gt;
&lt;br /&gt;
Report from tDCS human testing.&lt;br /&gt;
&lt;br /&gt;
== Biosignal Amp ==&lt;br /&gt;
&lt;br /&gt;
Boards delayed by holiday... should be here Monday. Parts order needs to go in soon.&lt;br /&gt;
&lt;br /&gt;
== SMT Soldering Class ==&lt;br /&gt;
&lt;br /&gt;
Prototype boards are in. Parts are ordered will probably arrive Friday. Boards will be showed off, etc.&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
&lt;br /&gt;
TBD&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8868</id>
		<title>Category:Meatups</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8868"/>
		<updated>2013-01-17T17:57:53Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some attendees regularly show up earlier that 7:30p and folks typically trickle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
= Future Meatups =&lt;br /&gt;
[[Meatup Jan 17 2013]]&lt;br /&gt;
&lt;br /&gt;
= Notes from Recent Meatups =&lt;br /&gt;
[[Meatup Nov 29 2012]]&lt;br /&gt;
[[Meatup Nov 15 2012]]&lt;br /&gt;
[[Meatup Nov 8 2012]]&lt;br /&gt;
[[Meatup Nov 1 2012]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_29_2012&amp;diff=8781</id>
		<title>Meatup Nov 29 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_29_2012&amp;diff=8781"/>
		<updated>2012-11-29T18:00:33Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;= Where and when = Thursday November 29th, 2012; 1930 @ [http://hacdc.org/ HacDC]  = Attendance = *Nocko *Stuart  = New Business =  = Old Business =  == Project Up...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Where and when =&lt;br /&gt;
Thursday November 29th, 2012; 1930 @ [http://hacdc.org/ HacDC]&lt;br /&gt;
&lt;br /&gt;
= Attendance =&lt;br /&gt;
*[[User:Nocko|Nocko]]&lt;br /&gt;
*Stuart&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== Project Updates ==&lt;br /&gt;
&lt;br /&gt;
===Wiki===&lt;br /&gt;
&lt;br /&gt;
===Physiological Saline===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
===Pacemaker===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8780</id>
		<title>Category:Meatups</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8780"/>
		<updated>2012-11-29T17:59:29Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some attendees regularly show up earlier that 7:30p and folks typically trickle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
= Future Meatups =&lt;br /&gt;
[[Meatup Nov 29 2012]]&lt;br /&gt;
&lt;br /&gt;
= Notes from Recent Meatups =&lt;br /&gt;
[[Meatup Nov 15 2012]]&lt;br /&gt;
[[Meatup Nov 8 2012]]&lt;br /&gt;
[[Meatup Nov 1 2012]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_15_2012&amp;diff=8680</id>
		<title>Meatup Nov 15 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_15_2012&amp;diff=8680"/>
		<updated>2012-11-15T16:01:09Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;= Where and when = Thursday November 15th, 2012; 1930 @ [http://hacdc.org/ HacDC]  = Attendance =  = New Business =  = Old Business =  == Project Updates ==  ===Wiki===  ===Physi...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Where and when =&lt;br /&gt;
Thursday November 15th, 2012; 1930 @ [http://hacdc.org/ HacDC]&lt;br /&gt;
&lt;br /&gt;
= Attendance =&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== Project Updates ==&lt;br /&gt;
&lt;br /&gt;
===Wiki===&lt;br /&gt;
&lt;br /&gt;
===Physiological Saline===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
===Pacemaker===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_8_2012&amp;diff=8623</id>
		<title>Meatup Nov 8 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_8_2012&amp;diff=8623"/>
		<updated>2012-11-13T21:33:56Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Where and when =&lt;br /&gt;
Thursday November 8th, 2012; 1930 @ [http://hacdc.org/ HacDC]&lt;br /&gt;
&lt;br /&gt;
= Attendance =&lt;br /&gt;
[[User:Nocko|Shawn]]&lt;br /&gt;
= New Business =&lt;br /&gt;
None&lt;br /&gt;
== Build / Test OpenTDCS v4 ==&lt;br /&gt;
&lt;br /&gt;
Shawn has received three (3) v4 PCBs from fabrication. The plan is to build at least one and have a look on the Oscilloscope.&lt;br /&gt;
&lt;br /&gt;
A single prototype was built. The output looked sensical, but the current limiting functions didn&#039;t appear to be calibrated to the expected values. [[User:Nocko|Shawn]] only spent a few minutes with the multimeter / scope.&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== Project Updates ==&lt;br /&gt;
&lt;br /&gt;
===Wiki===&lt;br /&gt;
Many pages added&lt;br /&gt;
&lt;br /&gt;
===Physiological Saline===&lt;br /&gt;
No progress&lt;br /&gt;
&lt;br /&gt;
===Pacemaker===&lt;br /&gt;
Initial Spice modeling of silly 555 circuits underway.&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
==Shawn==&lt;br /&gt;
Do a better checkout / postmortem on the v4 at home with familiar meters and scope.&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8622</id>
		<title>Category:Meatups</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8622"/>
		<updated>2012-11-13T21:33:16Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some attendees regularly show up earlier that 7:30p and folks typically trickle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
= Future Meatups =&lt;br /&gt;
[[Meatup Nov 15 2012]]&lt;br /&gt;
&lt;br /&gt;
= Notes from Recent Meatups =&lt;br /&gt;
[[Meatup Nov 8 2012]]&lt;br /&gt;
[[Meatup Nov 1 2012]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8621</id>
		<title>Category:Meatups</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8621"/>
		<updated>2012-11-13T21:32:46Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some attendees regularly show up earlier that 7:30p and folks typically trickle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
= Future Meatups =&lt;br /&gt;
[[Meatup Nov 15 2012]]&lt;br /&gt;
&lt;br /&gt;
= Notes from Past Meatups =&lt;br /&gt;
[[Meatup Nov 8 2012]]&lt;br /&gt;
[[Meatup Nov 1 2012]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_8_2012&amp;diff=8620</id>
		<title>Meatup Nov 8 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_8_2012&amp;diff=8620"/>
		<updated>2012-11-13T21:31:24Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Where and when =&lt;br /&gt;
Thursday November 8th, 2012; 1930 @ [http://hacdc.org/ HacDC]&lt;br /&gt;
&lt;br /&gt;
= Attendance =&lt;br /&gt;
[[User:Nocko|Shawn]]&lt;br /&gt;
= New Business =&lt;br /&gt;
None&lt;br /&gt;
== Build / Test OpenTDCS v4 ==&lt;br /&gt;
&lt;br /&gt;
Shawn has received three (3) v4 PCBs from fabrication. The plan is to build at least one and have a look on the Oscilloscope.&lt;br /&gt;
&lt;br /&gt;
A single prototype was built. The output looked sensical, but the current limiting functions didn&#039;t appear to be calibrated to the expected values. [[User:Nocko|Shawn]] only spent a few minutes with the multimeter / scope.&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== Project Updates ==&lt;br /&gt;
&lt;br /&gt;
===Wiki===&lt;br /&gt;
Many pages added&lt;br /&gt;
&lt;br /&gt;
===Physiological Saline===&lt;br /&gt;
No progress&lt;br /&gt;
&lt;br /&gt;
===Pacemaker===&lt;br /&gt;
Initial Spice modeling of silly 555 circuits underway.&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
==Shawn==&lt;br /&gt;
Do a better checkout / postmortem on the v4 at home with familiar meters and scope.&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=TDCS&amp;diff=8527</id>
		<title>TDCS</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=TDCS&amp;diff=8527"/>
		<updated>2012-11-08T16:41:47Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Transcranial Direct-Current Stimulation&lt;br /&gt;
&lt;br /&gt;
= Introduction =&lt;br /&gt;
[http://en.wikipedia.org/wiki/TDCS tDCS] is a method of passing a (very) small direct current through the brain to elicit changes in neuronal plasticity. The current passes from the anode electrode through the scalp, cranial vault and parts of the brain into the cathode electrode (for anodal stimulation).&lt;br /&gt;
&lt;br /&gt;
=Effects=&lt;br /&gt;
Hackers are primarily interested in tDCS because (in some configurations) it seems to increase learning rates. Other possible uses for DIY tDCS include:&lt;br /&gt;
* Relief of some types of neuropathic pain by repeated anodal stimulation of the Motor Cortex&lt;br /&gt;
* Management of some types of Depression with anodal stimulation of the Dorsolateral Prefrontal Cortex (DLPFC)&lt;br /&gt;
&lt;br /&gt;
=Safety=&lt;br /&gt;
&lt;br /&gt;
=Current Status=&lt;br /&gt;
Several designs for easily-built open source TDCS have been produced under the name OpenTDCS. None are currently ready for wide-spread use, but are available for reference and experimentation. The recommended version for testing is v4 (below), prototype PCBs have returned from fab and await assembly at the November 8th 2012 [[Meatup]].&lt;br /&gt;
&lt;br /&gt;
=Devices=&lt;br /&gt;
&lt;br /&gt;
== Version 1 ==&lt;br /&gt;
[[File:v1.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/master/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/07/30/brain-zapping-is-fun/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v1 model was a modification of the [http://flowstateengaged.com/img/kickstarter-images/public-schematic.pdf GoFlow Schematic]. It differs in that it has a potentiameter to adjust the current limiter instead of a 4-way switch. The power is supplied via a barrel connector, but &#039;&#039;&#039;the device should never be powered from a wall socket when connected also to a human being&#039;&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Low cost&lt;br /&gt;
* Few parts&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Primitive.&lt;br /&gt;
* Cannot provide 2mA without modification.&lt;br /&gt;
* No Electrostatic Discharge (ESD) protection&lt;br /&gt;
* No fail-safe if the LM334Z current limiting IC were to fail.&lt;br /&gt;
&lt;br /&gt;
== Version 2 ==&lt;br /&gt;
&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v2 gEDA Schematic]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v2 was a testing platform for a microcontroller controlled tDCS stimulator. USB power was not a good fit due to power supply isolation issues. No prototypes were built, the design is flawed and not recommended for any use.&lt;br /&gt;
&lt;br /&gt;
== Version 3 ==&lt;br /&gt;
[[File:opentdcs-v3.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v3/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v3 gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article]&lt;br /&gt;
&lt;br /&gt;
The v3 was designed to test the floating capacitor switching supply concept used in the v2. It was abandoned when the isolation issues in v2 became apparent. The design will probably work safely if the USB power is provided by a laptop running on battery power, but construction or use of the v3 design is not recommended&lt;br /&gt;
&lt;br /&gt;
== Version 4 ==&lt;br /&gt;
[[File:opentdcs-v4.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v4/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v4 gEDA Schematic and PCB Layout]&lt;br /&gt;
&lt;br /&gt;
The v4 is designed to drive higher impedance electrodes in addition to the usual sponge+saline electrodes by using the LT1026 charge pump controller to produce +18V to -18V split source from a 9V battery. It uses the LM334Z IC for fine current limiting control and a JFET as a gross 5mA limiter in case of LM334Z failure. ESD protection comes from two varistors.&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Inexpensive / Simple&lt;br /&gt;
* 2mA available via 9V battery with most (sub-15kOhm) electrode+head configurations.&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Limited visual feedback to user (on/off only)&lt;br /&gt;
* Current needs to be calibrated with external ammeter&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=TDCS&amp;diff=8526</id>
		<title>TDCS</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=TDCS&amp;diff=8526"/>
		<updated>2012-11-08T16:27:04Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Transcranial Direct-Current Stimulation&lt;br /&gt;
&lt;br /&gt;
= Introduction =&lt;br /&gt;
[http://en.wikipedia.org/wiki/TDCS tDCS] is a method of passing a (very) small direct current through the brain to elicit changes in neuronal plasticity. The current passes from the anode electrode through the scalp, cranial vault and parts of the brain into the cathode electrode (for anodal stimulation).&lt;br /&gt;
&lt;br /&gt;
=Effects=&lt;br /&gt;
Hackers are primarily interested in tDCS because (in some configurations) it seems to increase learning rates. Other possible uses for DIY tDCS include:&lt;br /&gt;
* Relief of some types of neuropathic pain by repeated anodal stimulation of the Motor Cortex&lt;br /&gt;
* Management of some types of Depression with anodal stimulation of the Dorsolateral Prefrontal Cortex (DLPFC)&lt;br /&gt;
&lt;br /&gt;
=Safety=&lt;br /&gt;
&lt;br /&gt;
=Current Status=&lt;br /&gt;
Several designs for easily-built open source TDCS have been produced under the name OpenTDCS. None are currently ready for wide-spread use, but are available for reference and experimentation. The recommended version for testing is v4 (below), prototype PCBs have returned from fab and await assembly at the November 8th 2012 [[Meatup]].&lt;br /&gt;
&lt;br /&gt;
=Devices=&lt;br /&gt;
&lt;br /&gt;
== Version 1 ==&lt;br /&gt;
[[File:v1.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/master/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/07/30/brain-zapping-is-fun/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v1 model was a modification of the [http://flowstateengaged.com/img/kickstarter-images/public-schematic.pdf GoFlow Schematic]. It differs in that it has a potentiameter to adjust the current limiter instead of a 4-way switch. The power is supplied via a barrel connector, but &#039;&#039;&#039;the device should never be powered from a wall socket when connected also to a human being&#039;&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Low cost&lt;br /&gt;
* Few parts&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Primitive.&lt;br /&gt;
* Cannot provide 2mA without modification.&lt;br /&gt;
* No Electrostatic Discharge (ESD) protection&lt;br /&gt;
* No fail-safe if the LM334Z current limiting IC were to fail.&lt;br /&gt;
&lt;br /&gt;
== Version 2 ==&lt;br /&gt;
&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v2 gEDA Schematic]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v2 was a testing platform for a microcontroller controlled tDCS stimulator. USB power was not a good fit due to power supply isolation issues. No prototypes were built, the design is flawed and not recommended for any use.&lt;br /&gt;
&lt;br /&gt;
== Version 3 ==&lt;br /&gt;
[[File:opentdcs-v3.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v3/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v3 gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article]&lt;br /&gt;
&lt;br /&gt;
The v3 was designed to test the floating capacitor switching supply concept used in the v2. It was abandoned when the isolation issues in v2 became apparent. The design will probably work safely if the USB power is provided by a laptop running on battery power, but construction or use of the v3 design is not recommended&lt;br /&gt;
&lt;br /&gt;
== Version 4 ==&lt;br /&gt;
[[File:opentdcs-v4.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v4/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v4 gEDA Schematic and PCB Layout]&lt;br /&gt;
&lt;br /&gt;
The v4 is designed to drive higher impedance electrodes in addition to the usual sponge+saline electrodes by using the LT1026 charge pump controller to produce +18V to -18V split source from a 9V battery. It uses the LM334Z IC for fine current limiting control and a JFET as a gross 5mA limiter in case of LM334Z failure. ESD protection comes from two varistors.&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Inexpensive / Simple&lt;br /&gt;
* 2-3mA available via 9V battery with reasonable electrode configurations.&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Limited visual feedback to user (on/off only)&lt;br /&gt;
* Current needs to be calibrated with external ammeter&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_1_2012&amp;diff=8524</id>
		<title>Meatup Nov 1 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_1_2012&amp;diff=8524"/>
		<updated>2012-11-08T15:44:28Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Atendance =&lt;br /&gt;
*Logan&lt;br /&gt;
*Mirage355&lt;br /&gt;
*Robert&lt;br /&gt;
*Sharad&lt;br /&gt;
*[[User:Nocko|Shawn]]&lt;br /&gt;
&lt;br /&gt;
With guest appearances by:&lt;br /&gt;
*Darius&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
== Exploration of the Basement Storage Area ==&lt;br /&gt;
&lt;br /&gt;
We went down to the basement because Mirage mentioned that there was a binocular microscope stored there. The microscope was found, but it was missing both the eyepieces and all three objective lenses. The brand name was recorded.&lt;br /&gt;
&lt;br /&gt;
A small (10x14x20&amp;quot;) fish tank was discovered that will be useful for an initial build of the [[PhysiologicalSaline|Physiological Saline]] testing apparatus.&lt;br /&gt;
&lt;br /&gt;
== Pacemaker Project ==&lt;br /&gt;
&lt;br /&gt;
To facilitate testing of biomaterials, a simple and small test implant was proposed. It was proposed that we create a reproduction of an Elmqvist pacemaker. It is simple, can drive a low-current LED and it powered/charged inductively.&lt;br /&gt;
&lt;br /&gt;
Having a &amp;quot;go to&amp;quot; easy implant will allow us to start quickly testing [[:Category:Biomaterials]] with a realistic payload. Bonus: blinking red LED &#039;&#039;heartbeat&#039;&#039; is pretty rad especially once installed in the saline pods.&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== tDCS v4 Prototypes ==&lt;br /&gt;
&lt;br /&gt;
PCBs for the tDCS v4 were sent priority mail on Oct 30th. They should arrive in time to be built next meeting.&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
&lt;br /&gt;
== Logan ==&lt;br /&gt;
*Start the ball rolling on the HacDC wiki pages&lt;br /&gt;
&lt;br /&gt;
== Robert ==&lt;br /&gt;
&lt;br /&gt;
*Investigate PBS (phosporous buffered saline) as the physiological analog solution.&lt;br /&gt;
&lt;br /&gt;
== Sharad ==&lt;br /&gt;
&lt;br /&gt;
*Work on SMT hand soldering class&lt;br /&gt;
&lt;br /&gt;
== Shawn ==&lt;br /&gt;
*Schematic / PCB layout for simple 555 pacemaker&lt;br /&gt;
*Order parts for saline pump and heater&lt;br /&gt;
*Don&#039;t forget about SMT workshop&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Cardiac_Pacemaker&amp;diff=8494</id>
		<title>Cardiac Pacemaker</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Cardiac_Pacemaker&amp;diff=8494"/>
		<updated>2012-11-06T20:54:41Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Overview =&lt;br /&gt;
&lt;br /&gt;
In order to begin [[:Category:Biomaterials|biomaterials]] testing, GrindDC needs a realistic implant test platform. The implantable cardiac pacemaker was chosen as the first project because it is:&lt;br /&gt;
*easily implemented&lt;br /&gt;
*cheap to produce&lt;br /&gt;
*small&lt;br /&gt;
*can easily utilize inductive power&lt;br /&gt;
&lt;br /&gt;
= Status =&lt;br /&gt;
&lt;br /&gt;
Implant is early in the design phase.&lt;br /&gt;
&lt;br /&gt;
= Goals =&lt;br /&gt;
&lt;br /&gt;
== Inductive Power ==&lt;br /&gt;
&lt;br /&gt;
Inductive power is a core feature that will be implemented in all future designs for primary power or recharging of implanted power supply. &lt;br /&gt;
&lt;br /&gt;
The pacemaker test platform should implement:&lt;br /&gt;
* inductive power recharge (with battery)&lt;br /&gt;
* inductive power only operation (without battery) &lt;br /&gt;
* easily replaced inductors&lt;br /&gt;
&lt;br /&gt;
== Small Size / Inexpensive ==&lt;br /&gt;
To accomplish the [[:Category:Biomaterials|biomaterials]] testing goals the pacemaker reference implant will need to be small in area to facilitate cheap production of the printed circuit boards. Additionally, the required parts should be minimized in number and cost.&lt;br /&gt;
&lt;br /&gt;
== Functional ==&lt;br /&gt;
&lt;br /&gt;
Using a simulated cardiac cell model, the pacer should regulate the circuit when Artrial-Ventricular block is simulated. The chosen cardiac model is described in &#039;&#039;Synchronization with low power consumption of hardware models of cardiac cells&#039;&#039; (Maeda, Yagi, Makino; 2005[http://dx.doi.org/10.1016/j.biosystems.2004.09.005]).&lt;br /&gt;
&lt;br /&gt;
[[Category:Implants]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Cardiac_Pacemaker&amp;diff=8493</id>
		<title>Cardiac Pacemaker</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Cardiac_Pacemaker&amp;diff=8493"/>
		<updated>2012-11-06T20:52:52Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;== Overview ==  In order to begin biomaterials testing, GrindDC needs a realistic implant test platform. The implantable cardiac pacemaker was chosen a...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Overview ==&lt;br /&gt;
&lt;br /&gt;
In order to begin [[:Category:Biomaterials|biomaterials]] testing, GrindDC needs a realistic implant test platform. The implantable cardiac pacemaker was chosen as the first project because it is:&lt;br /&gt;
*easily implemented&lt;br /&gt;
*cheap to produce&lt;br /&gt;
*small&lt;br /&gt;
*can easily utilize inductive power&lt;br /&gt;
&lt;br /&gt;
== Status ==&lt;br /&gt;
&lt;br /&gt;
Implant is early in the design phase.&lt;br /&gt;
&lt;br /&gt;
== Goals ==&lt;br /&gt;
&lt;br /&gt;
== Inductive Power ==&lt;br /&gt;
&lt;br /&gt;
Inductive power is a core feature that will be implemented in all future designs for primary power or recharging of implanted power supply. &lt;br /&gt;
&lt;br /&gt;
The pacemaker test platform should implement:&lt;br /&gt;
* inductive power recharge (with battery)&lt;br /&gt;
* inductive power only operation (without battery) &lt;br /&gt;
* easily replaced inductors&lt;br /&gt;
&lt;br /&gt;
== Small Size / Cheaply Manufactured ==&lt;br /&gt;
To accomplish the [[:Category:Biomaterials|biomaterials]] testing goals the pacemaker reference implant will need to be small in area to facilitate cheap production of the printed circuit boards. Additionally, the required parts should be minimized in number and cost.&lt;br /&gt;
&lt;br /&gt;
== Effective at pacing simulated heart ==&lt;br /&gt;
&lt;br /&gt;
Using a simulated cardiac cell model, the pacer should regulate the circuit when Artrial-Ventricular block is simulated. The chosen cardiac model is described in &#039;&#039;Synchronization with low power consumption of hardware models of cardiac cells&#039;&#039; (Maeda, Yagi, Makino; 2005[http://dx.doi.org/10.1016/j.biosystems.2004.09.005]).&lt;br /&gt;
&lt;br /&gt;
[[Category:Implants]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_8_2012&amp;diff=8474</id>
		<title>Meatup Nov 8 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_8_2012&amp;diff=8474"/>
		<updated>2012-11-06T01:28:54Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;= Where and when = Thursday November 8th, 2012; 1930 @ [http://hacdc.org/ HacDC]  = Attendance =  = New Business =  == Build / Test OpenTDCS v4 ==  Shawn has received three (3) v...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Where and when =&lt;br /&gt;
Thursday November 8th, 2012; 1930 @ [http://hacdc.org/ HacDC]&lt;br /&gt;
&lt;br /&gt;
= Attendance =&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
== Build / Test OpenTDCS v4 ==&lt;br /&gt;
&lt;br /&gt;
Shawn has received three (3) v4 PCBs from fabrication. The plan is to build at least one and have a look on the Oscilloscope.&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== Project Updates ==&lt;br /&gt;
&lt;br /&gt;
*Wiki&lt;br /&gt;
*Physiological Saline&lt;br /&gt;
*Pacemaker&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=TDCS&amp;diff=8473</id>
		<title>TDCS</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=TDCS&amp;diff=8473"/>
		<updated>2012-11-06T00:29:08Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* Version 3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Transcranial Direct-Current Stimulation&lt;br /&gt;
&lt;br /&gt;
= Introduction =&lt;br /&gt;
[http://en.wikipedia.org/wiki/TDCS tDCS] is a method of passing a (very) small direct current through the brain to elicit changes in neuronal plasticity. The current passes from the positive anode electrode through the scalp, cranial vault and parts of the brain into the negative electrode (cathode).&lt;br /&gt;
&lt;br /&gt;
=Effects=&lt;br /&gt;
Hackers are primarily interested in tDCS because (in some configurations) it seems to increase learning rates. Other possible uses for DIY tDCS include:&lt;br /&gt;
* Relief of some types of neuropathic pain by repeated anodal stimulation of the Motor Cortex&lt;br /&gt;
* Management of some types of Depression with anodal stimulation of the Dorsolateral Prefrontal Cortex (DLPFC)&lt;br /&gt;
&lt;br /&gt;
=Safety=&lt;br /&gt;
&lt;br /&gt;
=Current Status=&lt;br /&gt;
Several designs for easily-built open source TDCS have been produced under the name OpenTDCS. None are currently ready for wide-spread use, but are available for reference and experimentation. The recommended version for testing is v4 (below), prototype PCBs have returned from fab and await assembly at the November 8th 2012 [[Meatup]].&lt;br /&gt;
&lt;br /&gt;
=Devices=&lt;br /&gt;
&lt;br /&gt;
== Version 1 ==&lt;br /&gt;
[[File:v1.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/master/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/07/30/brain-zapping-is-fun/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v1 model was a modification of the [http://flowstateengaged.com/img/kickstarter-images/public-schematic.pdf GoFlow Schematic]. It differs in that it has a potentiameter to adjust the current limiter instead of a 4-way switch. The power is supplied via a barrel connector, but &#039;&#039;&#039;the device should never be powered from a wall socket when connected also to a human being&#039;&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Low cost&lt;br /&gt;
* Few parts&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Primitive.&lt;br /&gt;
* Cannot provide 2mA without modification.&lt;br /&gt;
* No Electrostatic Discharge (ESD) protection&lt;br /&gt;
* No fail-safe if the LM334Z current limiting IC were to fail.&lt;br /&gt;
&lt;br /&gt;
== Version 2 ==&lt;br /&gt;
&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v2 gEDA Schematic]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v2 was a testing platform for a microcontroller controlled tDCS stimulator. USB power was not a good fit due to power supply isolation issues. No prototypes were built, the design is flawed and not recommended for any use.&lt;br /&gt;
&lt;br /&gt;
== Version 3 ==&lt;br /&gt;
[[File:opentdcs-v3.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v3/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v3 gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article]&lt;br /&gt;
&lt;br /&gt;
The v3 was designed to test the floating capacitor switching supply concept used in the v2. It was abandoned when the isolation issues in v2 became apparent. The design will probably work safely if the USB power is provided by a laptop running on battery power, but construction or use of the v3 design is not recommended&lt;br /&gt;
&lt;br /&gt;
== Version 4 ==&lt;br /&gt;
[[File:opentdcs-v4.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v4/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v4 gEDA Schematic and PCB Layout]&lt;br /&gt;
&lt;br /&gt;
The v4 is designed to drive higher impedance electrodes in addition to the usual sponge+saline electrodes by using the LT1026 charge pump controller to produce +18V to -18V split source from a 9V battery. It uses the LM334Z IC for fine current limiting control and a JFET as a gross 5mA limiter in case of LM334Z failure. ESD protection comes from two varistors.&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Inexpensive / Simple&lt;br /&gt;
* 2-3mA available via 9V battery with reasonable electrode configurations.&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Limited visual feedback to user (on/off only)&lt;br /&gt;
* Current needs to be calibrated with external ammeter&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=TDCS&amp;diff=8472</id>
		<title>TDCS</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=TDCS&amp;diff=8472"/>
		<updated>2012-11-06T00:28:37Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* Version 4 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Transcranial Direct-Current Stimulation&lt;br /&gt;
&lt;br /&gt;
= Introduction =&lt;br /&gt;
[http://en.wikipedia.org/wiki/TDCS tDCS] is a method of passing a (very) small direct current through the brain to elicit changes in neuronal plasticity. The current passes from the positive anode electrode through the scalp, cranial vault and parts of the brain into the negative electrode (cathode).&lt;br /&gt;
&lt;br /&gt;
=Effects=&lt;br /&gt;
Hackers are primarily interested in tDCS because (in some configurations) it seems to increase learning rates. Other possible uses for DIY tDCS include:&lt;br /&gt;
* Relief of some types of neuropathic pain by repeated anodal stimulation of the Motor Cortex&lt;br /&gt;
* Management of some types of Depression with anodal stimulation of the Dorsolateral Prefrontal Cortex (DLPFC)&lt;br /&gt;
&lt;br /&gt;
=Safety=&lt;br /&gt;
&lt;br /&gt;
=Current Status=&lt;br /&gt;
Several designs for easily-built open source TDCS have been produced under the name OpenTDCS. None are currently ready for wide-spread use, but are available for reference and experimentation. The recommended version for testing is v4 (below), prototype PCBs have returned from fab and await assembly at the November 8th 2012 [[Meatup]].&lt;br /&gt;
&lt;br /&gt;
=Devices=&lt;br /&gt;
&lt;br /&gt;
== Version 1 ==&lt;br /&gt;
[[File:v1.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/master/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/07/30/brain-zapping-is-fun/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v1 model was a modification of the [http://flowstateengaged.com/img/kickstarter-images/public-schematic.pdf GoFlow Schematic]. It differs in that it has a potentiameter to adjust the current limiter instead of a 4-way switch. The power is supplied via a barrel connector, but &#039;&#039;&#039;the device should never be powered from a wall socket when connected also to a human being&#039;&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Low cost&lt;br /&gt;
* Few parts&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Primitive.&lt;br /&gt;
* Cannot provide 2mA without modification.&lt;br /&gt;
* No Electrostatic Discharge (ESD) protection&lt;br /&gt;
* No fail-safe if the LM334Z current limiting IC were to fail.&lt;br /&gt;
&lt;br /&gt;
== Version 2 ==&lt;br /&gt;
&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v2 gEDA Schematic]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article] &lt;br /&gt;
&lt;br /&gt;
The v2 was a testing platform for a microcontroller controlled tDCS stimulator. USB power was not a good fit due to power supply isolation issues. No prototypes were built, the design is flawed and not recommended for any use.&lt;br /&gt;
&lt;br /&gt;
== Version 3 ==&lt;br /&gt;
[[File:opentdcs-v3.png]]&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v3/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v3 gEDA Schematic and PCB Layout]&lt;br /&gt;
*[https://nocko.se/2012/08/08/opentdcs/ Original Announcement Article]&lt;br /&gt;
&lt;br /&gt;
The v3 was designed to test the floating capacitor switching supply concept used in the v2. It was abandoned when the isolation issues in v2 became apparent. The design will probably work safely if the USB power is provided by a laptop running on battery power, but construction or use of the v3 design is not recommended&lt;br /&gt;
&lt;br /&gt;
== Version 4 ==&lt;br /&gt;
[[File:opentdcs-v4.png]]&lt;br /&gt;
&lt;br /&gt;
Links:&lt;br /&gt;
*[https://github.com/nocko/tdcs/blob/v4/bom.txt Bill of Materials]&lt;br /&gt;
*[https://github.com/nocko/tdcs/tree/v4 gEDA Schematic and PCB Layout]&lt;br /&gt;
&lt;br /&gt;
The v4 is designed to drive higher impedance electrodes in addition to the usual sponge+saline electrodes by using the LT1026 charge pump controller to produce +18V to -18V split source from a 9V battery. It uses the LM334Z IC for fine current limiting control and a JFET as a gross 5mA limiter in case of LM334Z failure. ESD protection comes from two varistors.&lt;br /&gt;
&lt;br /&gt;
Advantages:&lt;br /&gt;
* Inexpensive / Simple&lt;br /&gt;
* 2-3mA available via 9V battery with reasonable electrode configurations.&lt;br /&gt;
&lt;br /&gt;
Disadvantages:&lt;br /&gt;
* Limited visual feedback to user (on/off only)&lt;br /&gt;
* Current needs to be calibrated with external ammeter&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_1_2012&amp;diff=8471</id>
		<title>Meatup Nov 1 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_1_2012&amp;diff=8471"/>
		<updated>2012-11-06T00:19:35Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Atendance =&lt;br /&gt;
*Logan&lt;br /&gt;
*Mirage355&lt;br /&gt;
*Robert&lt;br /&gt;
*Sharad&lt;br /&gt;
*[[User:Nocko|Shawn]]&lt;br /&gt;
&lt;br /&gt;
With guest appearances by:&lt;br /&gt;
*Darius&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
== Exploration of the Basement Storage Area ==&lt;br /&gt;
&lt;br /&gt;
We went down to the basement because Mirage mentioned that there was a binocular microscope stored there. The microscope was found, but it was missing both the eyepieces and all three objective lenses. The brand name was recorded.&lt;br /&gt;
&lt;br /&gt;
A small (10x14x20&amp;quot;) fish tank was discovered that will be useful for an initial build of the [[PhysiologicalSaline|Physiological Saline]] testing apparatus.&lt;br /&gt;
&lt;br /&gt;
== Pacemaker Project ==&lt;br /&gt;
&lt;br /&gt;
To facilitate testing of biomaterials, a simple and small test implant was proposed. It was proposed that we create a reproduction of an Elmqvist pacemaker. It is simple, can drive a low-current LED and it powered/charged inductively.&lt;br /&gt;
&lt;br /&gt;
Having a &amp;quot;go to&amp;quot; easy implant will allow us to start quickly testing [[:Category:Biomaterials]] with a realistic payload. Bonus: blinking red LED &#039;&#039;heartbeat&#039;&#039; is pretty rad especially once installed in the saline pods.&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== tDCS v4 Prototypes ==&lt;br /&gt;
&lt;br /&gt;
PCBs for the tDCS v4 were sent priority mail on Oct 30th. They should arrive in time to be built next meeting.&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
&lt;br /&gt;
== Logan ==&lt;br /&gt;
*Start the ball rolling on the HacDC wiki pages&lt;br /&gt;
&lt;br /&gt;
== Shawn ==&lt;br /&gt;
*Schematic / PCB layout for simple 555 pacemaker&lt;br /&gt;
*Order parts for saline pump and heater&lt;br /&gt;
*Don&#039;t forget about SMT workshop&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:GrindDC&amp;diff=8470</id>
		<title>Category:GrindDC</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:GrindDC&amp;diff=8470"/>
		<updated>2012-11-05T21:53:30Z</updated>

		<summary type="html">&lt;p&gt;Nock: /* Meetings */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Introduction =&lt;br /&gt;
&lt;br /&gt;
GrindDC is a collection of Grinders, DIYBio, transhumanists and general biohacker types that meet to work on the projects below.&lt;br /&gt;
&lt;br /&gt;
= Meetings =&lt;br /&gt;
&lt;br /&gt;
We have weekly meetings (meatups). We work on existing projects and discuss new pop science and academic results. More information an minutes are available on the dedicated page [[:Category:Meatups|Meatups]].&lt;br /&gt;
&lt;br /&gt;
= Mailing List =&lt;br /&gt;
&lt;br /&gt;
You can contact GrindDC by sending mail to our mailing list meat@hacdc.org. If you&#039;d like to join the discussion you can subscribe to the list by sending a message to [mailto:meat+subscribe@hacdc.org meat+subscribe@hacdc.org] .&lt;br /&gt;
&lt;br /&gt;
[[Category:Ongoing Projects]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Implants&amp;diff=8469</id>
		<title>Category:Implants</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Implants&amp;diff=8469"/>
		<updated>2012-11-05T21:52:22Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=Introduction=&lt;br /&gt;
&lt;br /&gt;
=Core Technologies=&lt;br /&gt;
*[[:Category:Biomaterials|Biomaterials]]&lt;br /&gt;
*[[Inductive Power]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Implants&amp;diff=8468</id>
		<title>Category:Implants</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Implants&amp;diff=8468"/>
		<updated>2012-11-05T21:51:12Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;=Introduction=  =Core Technologies= *Biomaterials *Inductive Power  =Projects= *Pacemaker *LED Blinker Study  Category:GrindDC&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=Introduction=&lt;br /&gt;
&lt;br /&gt;
=Core Technologies=&lt;br /&gt;
*[[Biomaterials]]&lt;br /&gt;
*[[Inductive Power]]&lt;br /&gt;
&lt;br /&gt;
=Projects=&lt;br /&gt;
*[[Implants:Pacemaker|Pacemaker]]&lt;br /&gt;
*[[Implants:LED|LED Blinker Study]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Implants&amp;diff=8467</id>
		<title>Implants</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Implants&amp;diff=8467"/>
		<updated>2012-11-05T21:50:45Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Deprecated by [[:Category:Implants]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Candidates for deletion]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Implants&amp;diff=8466</id>
		<title>Implants</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Implants&amp;diff=8466"/>
		<updated>2012-11-05T21:50:27Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Deprecated by [[:Category:Implant]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Candidates for deletion]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup_Nov_1_2012&amp;diff=8465</id>
		<title>Meatup Nov 1 2012</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup_Nov_1_2012&amp;diff=8465"/>
		<updated>2012-11-05T21:48:30Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;= Atendance = *Logan *Mirage355 *Sharad *Shawn  With guest appearances by: *Darius  = New Business =  == Exploration of the Basement Storage Area ==  We went down ...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Atendance =&lt;br /&gt;
*Logan&lt;br /&gt;
*Mirage355&lt;br /&gt;
*Sharad&lt;br /&gt;
*[[User:Nocko|Shawn]]&lt;br /&gt;
&lt;br /&gt;
With guest appearances by:&lt;br /&gt;
*Darius&lt;br /&gt;
&lt;br /&gt;
= New Business =&lt;br /&gt;
&lt;br /&gt;
== Exploration of the Basement Storage Area ==&lt;br /&gt;
&lt;br /&gt;
We went down to the basement because Mirage mentioned that there was a binocular microscope stored there. The microscope was found, but it was missing both the eyepieces and all three objective lenses. The brand name was recorded.&lt;br /&gt;
&lt;br /&gt;
A small (10x14x20&amp;quot;) fish tank was discovered that will be useful for an initial build of the [[PhysiologicalSaline|Physiological Saline]] testing apparatus.&lt;br /&gt;
&lt;br /&gt;
== Pacemaker Project ==&lt;br /&gt;
&lt;br /&gt;
To facilitate testing of biomaterials, a simple and small test implant was proposed. It was proposed that we create a reproduction of an Elmqvist pacemaker. It is simple, can drive a low-current LED and it powered/charged inductively.&lt;br /&gt;
&lt;br /&gt;
Having a &amp;quot;go to&amp;quot; easy implant will allow us to start quickly testing [[:Category:Biomaterials]] with a realistic payload. Bonus: blinking red LED &#039;&#039;heartbeat&#039;&#039; is pretty rad especially once installed in the saline pods.&lt;br /&gt;
&lt;br /&gt;
= Old Business =&lt;br /&gt;
&lt;br /&gt;
== tDCS v4 Prototypes ==&lt;br /&gt;
&lt;br /&gt;
PCBs for the tDCS v4 were sent priority mail on Oct 30th. They should arrive in time to be built next meeting.&lt;br /&gt;
&lt;br /&gt;
= Homework =&lt;br /&gt;
&lt;br /&gt;
== Logan ==&lt;br /&gt;
*Start the ball rolling on the HacDC wiki pages&lt;br /&gt;
&lt;br /&gt;
== Shawn ==&lt;br /&gt;
*Schematic / PCB layout for simple 555 pacemaker&lt;br /&gt;
*Order parts for saline pump and heater&lt;br /&gt;
*Don&#039;t forget about SMT workshop&lt;br /&gt;
&lt;br /&gt;
[[Category:Meatups]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8464</id>
		<title>Category:Meatups</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8464"/>
		<updated>2012-11-05T21:19:39Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some attendees regularly show up earlier that 7:30p and folks typically trickle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
= Future Meatups =&lt;br /&gt;
[[Meatup Nov 8 2012]]&lt;br /&gt;
&lt;br /&gt;
= Notes from Past Meatups =&lt;br /&gt;
[[Meatup Nov 1 2012]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8463</id>
		<title>Category:Meatups</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Meatups&amp;diff=8463"/>
		<updated>2012-11-05T21:17:36Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;=GrindDC Meetings= GrindDC&amp;#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some atendees regularly show up ear...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some atendees regularly show up earlier that 7:30p and folks typically tricle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup&amp;diff=8462</id>
		<title>Meatup</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup&amp;diff=8462"/>
		<updated>2012-11-05T21:16:58Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some atendees regularly show up earlier that 7:30p and folks typically tricle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
[[Category:Candidates for deletion]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Meatup&amp;diff=8461</id>
		<title>Meatup</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Meatup&amp;diff=8461"/>
		<updated>2012-11-05T21:15:51Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=GrindDC Meetings=&lt;br /&gt;
GrindDC&#039;s weekly meetings take place at [http://hacdc.org HacDC] every Thursday evening (rain or shine) and begin at 7:30p. Some atendees regularly show up earlier that 7:30p and folks typically tricle out when they need to, with the last folk leaving between 10:30-11:00p).&lt;br /&gt;
&lt;br /&gt;
[[Category:Candidates for Deletion]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:GrindDC&amp;diff=8460</id>
		<title>Category:GrindDC</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:GrindDC&amp;diff=8460"/>
		<updated>2012-11-05T21:14:20Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Introduction =&lt;br /&gt;
&lt;br /&gt;
GrindDC is a collection of Grinders, DIYBio, transhumanists and general biohacker types that meet to work on the projects below.&lt;br /&gt;
&lt;br /&gt;
= Meetings =&lt;br /&gt;
&lt;br /&gt;
We have weekly meetings (meatups). We work on existing projects and discuss new pop science and academic results. More information an minutes are available on the dedicated page [http://wiki.hacdc.org/index.php/Category:Meatups Meatups].&lt;br /&gt;
&lt;br /&gt;
= Mailing List =&lt;br /&gt;
&lt;br /&gt;
You can contact GrindDC by sending mail to our mailing list meat@hacdc.org. If you&#039;d like to join the discussion you can subscribe to the list by sending a message to [mailto:meat+subscribe@hacdc.org meat+subscribe@hacdc.org] .&lt;br /&gt;
&lt;br /&gt;
[[Category:Ongoing Projects]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Biomaterials&amp;diff=8459</id>
		<title>Biomaterials</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Biomaterials&amp;diff=8459"/>
		<updated>2012-11-05T21:04:30Z</updated>

		<summary type="html">&lt;p&gt;Nock: This is a duplicate page now and should be deleted.&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;This page has been deprecated due to the creation of an appropriate Category page and should be deleted.&lt;br /&gt;
&lt;br /&gt;
--[[User:Nock|Shawn Nock (OpenPGP: 0x65118FA5)]] 13:04, 5 November 2012 (PST)&lt;br /&gt;
&lt;br /&gt;
[[Category:Candidates for deletion]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=Category:Biomaterials&amp;diff=8458</id>
		<title>Category:Biomaterials</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=Category:Biomaterials&amp;diff=8458"/>
		<updated>2012-11-05T20:58:27Z</updated>

		<summary type="html">&lt;p&gt;Nock: Created page with &amp;quot;=Goals= GrindDC needs to study the biocompatibility of various materials to support it&amp;#039;s work developing Implants. There is a large body of academic literature about the safe...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;=Goals=&lt;br /&gt;
GrindDC needs to study the biocompatibility of various materials to support it&#039;s work developing [[Implants]]. There is a large body of academic literature about the safety of many materials, however without in house (or professional) testing of the specific materials to be implanted we cannot account for changes in:&lt;br /&gt;
&lt;br /&gt;
* manufacturing quality&lt;br /&gt;
* additives to commercially available polymers (plasticizers / lubricants)&lt;br /&gt;
* the effect of various methods of sterilization to be performed locally&lt;br /&gt;
&lt;br /&gt;
Our initial goal is to generate useful safety and biocompatablilty data about commercially available or locally-made biomaterials. Continuing efforts will be focused on using this data to evaluate and refine these materials for safe human implantation.&lt;br /&gt;
&lt;br /&gt;
=Proposed Materials=&lt;br /&gt;
== Plastics / Polymers ==&lt;br /&gt;
*[[Epoxy Resin|Epoxy Resin]]&lt;br /&gt;
*[[Polyvinyl chloride|PVC]]&lt;br /&gt;
*[[Polylactic acid|PLA]]&lt;br /&gt;
&lt;br /&gt;
== Ceramics ==&lt;br /&gt;
*[[Hydroxyapatite]]&lt;br /&gt;
&lt;br /&gt;
== Metals ==&lt;br /&gt;
*[[Stainless316|Stainless Steel #316]]&lt;br /&gt;
*[[CoCr|Cobalt-Chromium Alloys]]&lt;br /&gt;
*[[Ti|Titanium]]&lt;br /&gt;
&lt;br /&gt;
=Testing Proceedures / Equipment=&lt;br /&gt;
*[[PhysiologicalSaline|Physiological Saline Testing]]&lt;br /&gt;
*[[Cytotoxicity|Cytotoxicity Testing]]&lt;br /&gt;
&lt;br /&gt;
[[Category:GrindDC]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=8457</id>
		<title>User:Nocko</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=8457"/>
		<updated>2012-11-05T20:45:57Z</updated>

		<summary type="html">&lt;p&gt;Nock: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Image:nocko.jpg|thumb|right|Hugging a Lego&amp;amp;trade; Wookie]]&lt;br /&gt;
&lt;br /&gt;
Alias: nocko&lt;br /&gt;
&lt;br /&gt;
Real Name: Shawn Nock&lt;br /&gt;
&lt;br /&gt;
Email: nock at nocko dot se&lt;br /&gt;
&lt;br /&gt;
IRC: nocko on #hacdc, ##biohack on freenode&lt;br /&gt;
&lt;br /&gt;
URL: https://nocko.se/&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:Members]]&lt;br /&gt;
&lt;br /&gt;
== Projects ==&lt;br /&gt;
&lt;br /&gt;
* [[GrindDC]]&lt;br /&gt;
&lt;br /&gt;
== Interests ==&lt;br /&gt;
&lt;br /&gt;
* HPC (High Performance Computing)&lt;br /&gt;
* DIYBio / DIY Biomedical Engineering&lt;br /&gt;
&lt;br /&gt;
== Experience ==&lt;br /&gt;
&lt;br /&gt;
* Broadcast Engingeer at [http://www.azpm.org/ Arizona Public Media]&lt;br /&gt;
** Electronics tinkering&lt;br /&gt;
** Basic RF Engineering&lt;br /&gt;
** Broadcast Automation Programming&lt;br /&gt;
* Systems Programmer, Sr. at the [http://www.arizona.edu Univ. of AZ]&lt;br /&gt;
** SAN Storage Administrator&lt;br /&gt;
** Mail System Admin&lt;br /&gt;
** HPC Team&lt;br /&gt;
** Admin for hundreds of physical and virtual Linux boxen&lt;br /&gt;
** Managed the migration of 35k students to Google Apps for Education including writing software to migrate 3T of student E-Mail and a custom Javascript UI for user management.&lt;br /&gt;
* Currently at [http://cfmi.georgetown.edu Center for Function and Molecular Imaging] at Georgetown University Medical Center&lt;br /&gt;
** Research support for several Neuroscience labs&lt;br /&gt;
** Cluster support for image processing&lt;br /&gt;
== Other ==&lt;br /&gt;
{|&lt;br /&gt;
|[[Image:nocko2.jpg|thumb|This is the cover of my next album (ha!) taken in my native Sonoran Desert.]]&lt;br /&gt;
|[[Image:nocko3.jpg|thumb|upright|There isn&#039;t much to do in the desert sometimes, so we make up sports. Here I am trying to jump over a sahuaro.]]&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=User:Nock&amp;diff=8456</id>
		<title>User:Nock</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=User:Nock&amp;diff=8456"/>
		<updated>2012-11-05T20:43:24Z</updated>

		<summary type="html">&lt;p&gt;Nock: moved User:Nock to User:Nocko: People know the name Nocko&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;#REDIRECT [[User:Nocko]]&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
	<entry>
		<id>https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=8455</id>
		<title>User:Nocko</title>
		<link rel="alternate" type="text/html" href="https://old.hacdc.org/index.php?title=User:Nocko&amp;diff=8455"/>
		<updated>2012-11-05T20:43:24Z</updated>

		<summary type="html">&lt;p&gt;Nock: moved User:Nock to User:Nocko: People know the name Nocko&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;[[Image:nocko.jpg|thumb|right|Hugging a Lego&amp;amp;trade; Wookie]]&lt;br /&gt;
&lt;br /&gt;
Alias: nock / nocko&lt;br /&gt;
&lt;br /&gt;
Real Name: Shawn Nock&lt;br /&gt;
&lt;br /&gt;
Email: nock at nocko dot net&lt;br /&gt;
&lt;br /&gt;
IRC: nocko on #hacdc on freenode&lt;br /&gt;
&lt;br /&gt;
URL: http://nocko.net&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:Members]]&lt;br /&gt;
&lt;br /&gt;
== Projects ==&lt;br /&gt;
&lt;br /&gt;
* None: I am pretty new to the space&lt;br /&gt;
&lt;br /&gt;
== Interests ==&lt;br /&gt;
&lt;br /&gt;
* HPC (High Performance Computing)&lt;br /&gt;
* Virtualization&lt;br /&gt;
* Linux system administration&lt;br /&gt;
* Coding in Python &amp;amp; C&lt;br /&gt;
* Trying to wrap my brain around functional languages like Erlang, Haskell, and various LISPs&lt;br /&gt;
&lt;br /&gt;
== Experience ==&lt;br /&gt;
&lt;br /&gt;
* Broadcast Engingeer at [http://www.azpm.org/ Arizona Public Media]&lt;br /&gt;
** Electronics tinkering&lt;br /&gt;
** Basic RF Engineering&lt;br /&gt;
** Broadcast Automation Programming&lt;br /&gt;
* Systems Programmer, Sr. at the [http://www.arizona.edu Univ. of AZ]&lt;br /&gt;
** SAN Storage Administrator&lt;br /&gt;
** Mail System Admin&lt;br /&gt;
** HPC Team&lt;br /&gt;
** Admin for hundreds of physical and virtual Linux boxen&lt;br /&gt;
** Managed the migration of 35k students to Google Apps for Education including writing software to migrate 3T of student E-Mail and a custom Javascript UI for user management.&lt;br /&gt;
* Currently at [http://cfmi.georgetown.edu Center for Function and Molecular Imaging] at Georgetown University Medical Center&lt;br /&gt;
** Research support for several Neuroscience labs&lt;br /&gt;
** Cluster support for image processing&lt;br /&gt;
== Other ==&lt;br /&gt;
{|&lt;br /&gt;
|[[Image:nocko2.jpg|thumb|This is the cover of my next album (ha!) taken in my native Sonoran Desert.]]&lt;br /&gt;
|[[Image:nocko3.jpg|thumb|upright|There isn&#039;t much to do in the desert sometimes, so we make up sports. Here I am demonstrating the Cactus Jump.]]&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Nock</name></author>
	</entry>
</feed>