Regular Member Meeting 2017 12 12 - Revision history

Summakor: /* Adjournment */ asdf

2017-12-13T02:09:21Z

Adjournment: asdf

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	== Adjournment ==		== Adjournment ==
	Adjourned by at ~~xxx~~ by ~~xxx~~		Adjourned by at 9:09pm by Julia

Summakor: /* Project Optical Table Robot (OTR) -Julia */ asdf

2017-12-13T01:46:59Z

Project Optical Table Robot (OTR) -Julia: asdf

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	=== Project Optical Table Robot (OTR) -Julia ===		=== Project Optical Table Robot (OTR) -Julia ===
			Nothing to report. James is leaving soon too.

	=== Project CRISPR -Enrique ===		=== Project CRISPR -Enrique ===

Summakor: /* Project Electron Microscope (SEM) - Enrique */

2017-12-13T01:41:46Z

Project Electron Microscope (SEM) - Enrique

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	=== Project Electron Microscope (SEM) - Enrique ===		=== Project Electron Microscope (SEM) - Enrique ===
	Using isopropyl alcohol we located a leak where the column connects to the side vacuum tube (the tube leading up to the gun on the side of the column). Confusingly, the application of alcohol helped the pressure fall quite a bit from 4000mTorr to about 500mTorr. Also the turbo pump did not slow down, which is great. However the desired pressure is closer to 10mTorr (check units on OEM indicator). We only let it pump for less than an hour. It wouldn't be unreasonable to let it pump for 24 hours to see if it improves. Moisture is very time-consuming to remove once it's wandered its way into every nook and cranny, which is why SEMs are generally kept under vacuum with the pumps on 24/7. The good news is major leaks in other areas were ruled out, including the main door seal. EDX flange, blank flange, gauge itself and the gun seal. We should consider connecting the pump exhaust to the laser cutter exhaust to vent oil fumes that make it past the filter (they can be smelled in the room).		Using isopropyl alcohol we located a leak where the column connects to the side vacuum tube (the tube leading up to the gun on the side of the column). Confusingly, the application of alcohol helped the pressure fall quite a bit from 4000mTorr to about 500mTorr. Also the turbo pump did not slow down, which is great. However the desired pressure is closer to 10mTorr (check units on OEM indicator). We only let it pump for less than an hour. It wouldn't be unreasonable to let it pump for 24 hours to see if it improves. Moisture is very time-consuming to remove once it's wandered its way into every nook and cranny, which is why SEMs are generally kept under vacuum with the pumps on 24/7. The good news is major leaks in other areas were ruled out, including the main door seal. EDX flange, blank flange, gauge itself and the gun seal. We should consider connecting the pump exhaust to the laser cutter exhaust to vent oil fumes that make it past the filter (they can be smelled in the room). - Enrique

			Also identified all (but one) of the parts to the backscatter detector system. Reverse-engineered and wrote schematics and took photos of it all. We can now design and assemble a better amplifier for it. Julia acquired an identical backscatter system off eBay. Working with two other people reverse-engineering SEMs to make them open-source. Also found someone in CA with two of the same model we have. - Julia

	=== Project Optical Table Robot (OTR) -Julia ===		=== Project Optical Table Robot (OTR) -Julia ===

Summakor: /* New Members */ asdf

2017-12-13T01:20:33Z

New Members: asdf

← Older revision		Revision as of 01:20, 13 December 2017
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	== New Members ==		== New Members ==
	Rob R. was a member a number of years ago and is coming back. Works for a USAID contractor, using maker tools and approaches to apply to international development.		Rob R. was a member a number of years ago and is coming back. Works for a USAID contractor, using maker tools and approaches to apply to international development. Rob voted in unanimously.

	== Old Business ==		== Old Business ==

192.95.20.138: /* Vice President's Report */ add

2017-12-13T01:18:21Z

Vice President's Report: add

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	=== Vice President's Report ===		=== Vice President's Report ===

			I have the core switch back up and able to be managed. HacDC VLANs are now correctly applied. We still need to rebuild the rest of the building's network.

			We on the Admin team have provided tech support for several wireless connectivity issues to the Church office and some tenants.

			Other than that -- we have generally had a month or two of setbacks, and not much progress. I would still like to provide a number of upgrades to HacDC and the church, but the line we had on a donation of locking rack which was to help make all this happen went sideways.

	=== Treasurer's Report ===		=== Treasurer's Report ===

Summakor: /* New Members */ sedf

2017-12-13T01:17:31Z

New Members: sedf

← Older revision		Revision as of 01:17, 13 December 2017
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	== New Members ==		== New Members ==
			Rob R. was a member a number of years ago and is coming back. Works for a USAID contractor, using maker tools and approaches to apply to international development.

	== Old Business ==		== Old Business ==

96.88.198.77: /* Recognition */ asdf

2017-12-13T01:15:51Z

Recognition: asdf

← Older revision		Revision as of 01:15, 13 December 2017
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	== Recognition ==		== Recognition ==
			Ken facilitated a meeting with DC Govt and National Makers organization, see proposal below.

	== New Members ==		== New Members ==

96.88.198.77: /* Approval of Previous Meeting's Minutes */ asdf

2017-12-13T01:14:49Z

Approval of Previous Meeting's Minutes: asdf

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	== Approval of Previous Meeting's Minutes ==		== Approval of Previous Meeting's Minutes ==
			Approved.

	== Recognition ==		== Recognition ==

96.88.198.77: /* Time and Location */ asdf

2017-12-13T01:14:14Z

Time and Location: asdf

← Older revision		Revision as of 01:14, 13 December 2017
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	== Time and Location ==		== Time and Location ==
	:Date		:Date
	:Called to order at ~~xxxx~~ pm by ~~xxxx~~		:Called to order at 8:12 pm by Julia
	:Members present:		:Members present: Ken, Kevin, Julia, Bobby, Enrique
	:Members remote:		:Members remote: Tom
	:Others present:		:Others present: Rob
	:[[Quorum]]		:[[Quorum]]
	:: Quorum met?		:: Quorum met? No

	== Approval of Previous Meeting's Minutes ==		== Approval of Previous Meeting's Minutes ==

Ubuntourist: SEM vacuum gauge

2017-12-13T01:12:29Z

SEM vacuum gauge

← Older revision		Revision as of 01:12, 13 December 2017
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	== Member Reports ==		== Member Reports ==

			* A wee bit of progress has been made with software to talk to the SEM. It's moving towards a "pronsole-like" interface. ([[User:Ubuntourist\|Ubuntourist]])

	== Director Reports (Governance related stuff) ==		== Director Reports (Governance related stuff) ==