The stretch is minimal so it might be a problem. But, because of that, the opposite sides of the belt cannot pull in toward each other and touch. My more...
slash2314: I have found that gradual deterioration of VDG performance is very often due to gradual build up of contamination. This is especially aggravated...
Guys, I have procured myself a piece of Teflon, 2.5" diameter and 3.5" long. Could this be a great top roller for my next larger VDG? And would nylon be the...
... Look in your local yellow pages for metal spinning shops. They tend to be very expensive even if you have it made yourself. If you buy one from the high...
Zac: I am using Teflon/top Nylon/bottom with a vinyl impregnated nylon belt. Works great! Be aware that stretchy belt material works pretty good on small VDGs...
-Dick vinyl impregnated nylon belt? were did you get that? -- In VanDeGraaffGenerator@yahoogroups.com, "Richard R. Linder" ... belt. Works great! ... but on my...
Zac: Go to the forum and read messages 853 - 857 which relates to that belt material. ... 60647 ... keyword to explore other stuff ... received it from...
Zac: For my small VDG I obtained an 18" diameter stainless steel mirror ball from a landscaping supply place in Lexington Kentucky. It cost arount $175.00...
... curve, I used a stainless steel garden gazing globe for mine. About 10" diameter and cost about $35 at a local garden shop. I clamped it in a drill press...
I'm curious... How did you manage to clamp the 10" sphere into the drill press? I ask because I am probably going to be attempting the same thing soon. ... ...
... I cut a circular hole in two scraps of plywood, one under the globe and one over the globe, and clamped the whole thing to the drill press table with ptpe...
-Thanks Dick, I just ordered the Bottom roller material and belt from Mcmaster car. Im going to use Nylon for the bottom roller. It was 13.00 a foot for 2"...
Zac: I also used nylon for thje bottom roller on both the small and large VDG but when I built the large one, teflon was to $$ for such a big piece so I made...
Hi, I'm new to this forum but thought this may be of interest to anyone in the UK. Blades biological supply http://www.blades-bio.co.uk/ have just started...
hello people, i was wondering (as usual!) in a sectored wimsurst machine would it work more efficiently if the sectors were covered and only the bit in the...
Greetings HOUMAN, The major losses on sectored Wimshurst machines does come from the corona emanating from the edges of each metallic sector. We are talking...
hello people, hello chris.....insulation of any kind even of non conductive cello- tape should make a big difference...in a vdg machine people cover their...
Please upload some pics of the VDG we love to see all the construction methods., Zac ... performed ... spite ... past ... reason... ... the ... of ... where ...
Guys, Im going to use some scrap circuit board with gold plated connector pins in it for the brushes. Could I get better results from using two or more rows of...
Zack: Dr. Van DeGraaff used steel phonograph needles commonly found in acoustical record players of the '30's. When I visited the VDG at the MOS it appeared...
- Dick, The pins are now very sharp, a quick pass with a Dremel tool took care of that. I have some sheet copper that I could cut out and use to make a comb...
hello people, i guess no one here really built a wimshurst with sectors...but i was wondering (again) will copper give better results than alu' on the sectors,...
Hi All, The PVC leaks real bad above 8 inch ID. 12 inch ID tubes refuse to work at all even when charged by a 10 inch wide belt. Been there, done as they...
Hello, I'm selling plans for building a device that generates x-rays and allows the effects of electron beams to be seen visually, the device can be built with...
When I saw the subject of X-RAY pop up on the screen I did a double take! Please, please be advised that any device that generates X-rays is a health hazard....
hello everyone, I have got my hands on a 115 volt AC, 1/4 hp motor. I have built small VDG's so have some experience, but i do not know if this would be a...
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