Search found 31 matches
- Thu Aug 09, 2018 4:03 am
- Forum: Announcements and Site Administration Topics
- Topic: Sunnyvale Mini Meetup -- August 11
- Replies: 5
- Views: 992
Update: I won't be going to the meetup because I broke my tailbone recently and sitting is painful. I might still make it to the flea market.
- Mon Jun 11, 2018 4:35 am
- Forum: Fusor and/or General Fusion Theory (& FAQs)
- Topic: Does this look sufficient for a proof of concept fusor?
- Replies: 7
- Views: 3505
Wood probably isn't the best material for vacuum work, but it might be ok for demo fusor pressures. Still, plastic would be better.
- Wed Jun 06, 2018 1:13 am
- Forum: New User Chat Area
- Topic: Annealed copper gasket for hv feedthrough?
- Replies: 1
- Views: 718
I know annealed copper cf gaskets are recommended for viewports, but should I use one for my feedthrough as well since it's made of ceramic?
I can think of two other ways in which the color could have been created: 1. Some coins have copper on the inside and just a thin plating of the silver colored surface finish. When heated, the copper can alloy with the surface material and create a gold colored layer. 2. It could be an oxide layer, ...
The reason I recommended a plastic plate is because it's easier than working with metal. Obviously metal is a better vacuum material, but it is harder to machine and feedthroughs must be insulated. It's much easier to drill a hole, put some wire through it, and seal with epoxy. Yes, running for long...
I don't recommend using the lid at all. Instead, use a sheet of plastic and make your feedthroughs in that, then seal it with a rubber gasket (you can cut it from sheet rubber). That's what I did here: http://www.fusor.net/board/viewtopic.php?f=18&t=12250 The vacuum is still not amazing but it works...