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Entry  Wed Aug 25 01:28:35 2010, rana, Things to Buy, GYRO, Possible Vacuum system for the GYRO 
    Reply  Thu Aug 26 01:10:11 2010, Alastair, Things to Buy, GYRO, Possible Vacuum system for the GYRO 
       Reply  Thu Aug 26 17:09:08 2010, Alastair, Things to Buy, GYRO, Possible Vacuum system for the GYRO 
Message ID: 982     Entry time: Wed Aug 25 01:28:35 2010     Reply to this: 987
Author: rana 
Type: Things to Buy 
Category: GYRO 
Subject: Possible Vacuum system for the GYRO 

One possible vacuum chamber solution for the Gyro is to use long tubes for the Gyro arms and then to have a small chamber with ports at each corner.

I looked a little at using stock MDC vacuum parts for this; its not out of the question.

For the tubes, we could use something like their NW50 Kwik-Flange nipple. It has an OD of 2" and a length of 6.5". Its $63.

For the corners, we can use one of their '5-way crosses' like the 406002. Its basically 5 flanges welded onto a shell. Depending on the size its ~$250 ea.

I would prefer to get one long tube for each arm, rather than stick a bunch of short ones together, so I'll get a quote from MDC on a custom job.

Uncoated quartz viewports are ~$250 ea. I expect that we will want AR coated and angled viewports. Maybe $400 ea then.

So the total cost, without pumps would be ~5k$.

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