Looking for a high vacuum 8" conlfat, any suggestions?

AI Thread Summary
The discussion focuses on sourcing an 8" high vacuum conflat with a 5.75" ID, emphasizing the need for at least a 1.5" nipple. The user has explored options at Lesker but finds new products too expensive. They aim to build a complete chamber, including pumps, for under $500. Suggestions for affordable sources or alternatives are requested to help complete the experimental setup within budget constraints. The urgency is highlighted as this conflat is a crucial final component.
mesa
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Hey guys, I have had a lot of success finding what I need on campus for an experimental setup, but for some reason this piece has been alluding me.

I am trying to source an 8" HV conflat with 5.75" ID. It can have fixed or rotatable holes, be threaded or un-threaded so long as it has at least a 1.5" nipple. Any suggestions?
 
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I have, unfortunately new stuff is expensive.

My goal is to build this new chamber (including mechanical roughing and turbo pumps) for under $500.00. This is one of the final pieces needed to complete this experimental setup, and I am nearly at the end of my budget.
 
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