Vacuum Chamber Construction

For posts specifically relating to fusor design, construction, and operation.
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Nicolas Krause
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Real name: Nicolas Krause
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Re: Vacuum Chamber Construction

Post by Nicolas Krause » Fri Jul 10, 2020 1:05 am

Hi Rich, the bubbles are very clearly coming from the connection of the hemisphere to the ring, and the hemisphere's don't rock against one another when I press them together, so I think the most likely culprit at the moment is the weld itself.

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Nicolas Krause
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Joined: Fri Sep 30, 2016 11:36 pm
Real name: Nicolas Krause
Location: Canada
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Re: Vacuum Chamber Construction

Post by Nicolas Krause » Wed Jul 22, 2020 10:20 pm

Very happy to report that after a quick welding session, the welds appear to be sound. Visual inspection identified a couple of small holes, and just to be on the safe side I welded a few more spots that looked suspect. I repeated the soap and water test with the bicycle pump and no bubbles appeared! Next steps are to complete the program and pcb for my vacuum thermocouple gauge. I'll then be able to hook up my backing pump.
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John Futter
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Re: Vacuum Chamber Construction

Post by John Futter » Thu Jul 23, 2020 8:06 am

Nicolas
Excellent keep at it

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