Olive compression fittings in High Vacuum

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Albert Mery
Posts: 21
Joined: Fri May 03, 2019 5:53 pm
Real name: Albert Mery

Re: Olive compression fittings in High Vacuum

Post by Albert Mery »

Hello Joe, Richard,

Thanks for that advice about the metal ring, I made a crude one with some metal scraps and a small spring. I was planning on using Shellac to create a vacuum tight seal for the conductor... however I haven't gotten that far saddly. I have been completely unable to drill through this ceramic. The diamond drill bits were only able to bore a couple millimeters after 20 minutes of drilling with water :( . If I had a lathe I'm sure it could be done easily but that's not quite in my budget. There are so many knowlegeable craftsman on this forum, I was wondering if anyone had any tips and tricks on how I could get this done? I might just scrap this hole standoff idea all togethere and opt for a Liam David type feedthrough. As Richard mentioned, even if I got it working this feedthrough it would only be good for demo fusor use...
Thanks,
Albert
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Joe Gayo
Posts: 404
Joined: Sun Jan 06, 2019 9:34 pm
Real name: Joe Gayo
Location: USA

Re: Olive compression fittings in High Vacuum

Post by Joe Gayo »

The quality of the drill bit, cooling, and setup matter a great deal. Can you find another ceramic piece that already has the through-hole? Otherwise use a spark plug...
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