Search found 831 matches

by Jerry Biehler
Sat Nov 10, 2018 7:36 am
Forum: Images du Jour
Topic: putt-putt boat fusion
Replies: 6
Views: 594

Re: putt-putt boat fusion

Hitachi makes some very nice stuff as well. I have one of their older 3/8" corded hand drills. It is geared like a 1/2' drill. I actually put on a 1/2" chuck on it instead and use that for anything I need slow speed and a ton of torque. Killed the trigger once but a replacement was easy enough to get.
by Jerry Biehler
Wed Nov 07, 2018 1:48 am
Forum: Images du Jour
Topic: putt-putt boat fusion
Replies: 6
Views: 594

Re: putt-putt boat fusion

Try Panasonic power tools, they blow Makita out of the water.
by Jerry Biehler
Wed Nov 07, 2018 1:45 am
Forum: Vacuum Technology (& FAQs)
Topic: TEFLEX seals for ISO-K
Replies: 6
Views: 279

Re: TEFLEX seals for ISO-K

Teflon is no good for atmosphere to uhh seals, it is permeable. Just stick with nitrile or viton. You can get metal seals for ISO flanges: https://www.pfeiffer-vacuum.com/en/products/chambers-components/components/iso-k-iso-f/iso-k-iso-f-seals/?detailPdoId=6609 Probably pretty expensive but and unle...
by Jerry Biehler
Thu Oct 18, 2018 7:39 am
Forum: Vacuum Technology (& FAQs)
Topic: Updated Diffusion Pump Assembly and Thermal Modeling
Replies: 3
Views: 396

Re: Updated Diffusion Pump Assembly and Thermal Modeling

Plates are way thicker than they need to be. You're only talking 15psi here.

I get cast aluminum tooling plate here: http://www.sandsmachine.com/alumweb.htm
Good prices and I have used them for all sorts of vacuum projects.
by Jerry Biehler
Sat Oct 13, 2018 6:02 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Titanium walls
Replies: 10
Views: 1526

Re: Titanium walls

Just look at a titanium sorption pump. Basically filaments with Ti on them and the Ti evaporates on the walls and the active gasses bind with the fresh Ti and are removed from the atmosphere. So just buy some replacement filaments for these.
by Jerry Biehler
Mon Oct 01, 2018 2:37 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Operating three phase high voltage power supply on single phase power
Replies: 10
Views: 1287

Re: Operating three phase high voltage power supply on single phase power

As long as you the unit does not have phase loss detection or an input where it uses multiple internal power supplies off the different phases to run the logic you should be ok with running it at reduced capacity on single phase with a bucking transformer. Probably 1/3rd capacity would be a good rul...
by Jerry Biehler
Sat Sep 01, 2018 6:16 am
Forum: New User Chat Area
Topic: What flange is this?
Replies: 5
Views: 724

Re: What flange is this?

Looks like a special. Should be easy to make an adapter for.
by Jerry Biehler
Fri Aug 24, 2018 5:49 am
Forum: Vacuum Technology (& FAQs)
Topic: convectron 275 tube and controller
Replies: 9
Views: 1325

Re: convectron 275 tube and controller

I might be able to get pinouts, but do you have a source for the tube end of the connector? It is proprietary.

Convectrons are good, I am putting them on my big system, just got to make sure they are orientated so that the tube lays horizontal.
by Jerry Biehler
Wed Aug 22, 2018 3:55 am
Forum: Vacuum Technology (& FAQs)
Topic: Debugging an Inficon PKR 251 Series Gauge
Replies: 3
Views: 576

Re: Debugging an Inficon PKR 251 Series Gauge

Send it back and get your money back, I usually dont spend more than $100 on these units.
by Jerry Biehler
Sat Aug 18, 2018 2:43 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: DIY hermetic feedthroughs: Has anybody done this?
Replies: 5
Views: 932

Re: DIY hermetic feedthroughs: Has anybody done this?

I actually worked at bullseye glass for about 2.5 weeks before I was canned for "not being excited about glass". Sigh. Anyway... Most art glass is soda lime. We had special machines build specifically for the job but you could do a ball mill with a bunch of alumina balls which you can get off ebay. ...