Hi, Having made a nice Jacob's ladder, I would like to graduate to a vdg generator. I am thinking about the apparently perennial problem of a nice round...
I'm writing a play about the science of Ben Franklin for the Museum of Science in Boston. I'd like to get a small VDG and/or other electrostatic generator demo...
hi i have decided 2 use polypropelyene for the lower roller and nylon66 for the upper if some one have used this type of configuration plz tell me didi it work...
can i mount the roller on the same shaft as that of roller as i have a long shaft to mount the roller.i mean wont it create problems on the working opt motor...
Should work fine. I'm still tweeking mine I made using polypropylene for the lower roller and some sort of soft rubbery rollers from a printer for the top...
I hope someone will be kind enough to help me out. Short story - science project for son - Wimshurst machine - Dad knows little about electronics. Don't need...
Just made a VDG, my first, after thinking it would be a cool thing to do for about 35 years. Doesn't do anything yet, just mechanically runs. I was working off...
Never built a Wimshurst so this is all guesswork: I'd have thought your collectors will need sharp points. Other sharp points could be draining it faster than...
Hi Irubin28, This is a mailgroup - all conversations are forwarded to all members. It is up to you to pay attention to the ones you are interested in. Bill...
You can also opt out of the email and just read the messages from the group page at <http://groups.yahoo.com/group/VanDeGraaffGenerator/messages>after logging...
Thanks Ben, I would like to finish the Wimshurst just because I don't want to give up now, but I'm also interested in trying the vandegraf you mentioned....
Lincoln Be sure your brushes don't touch the belt. I think its best to point the brushes toward the rollers(still new at this so could be wrong), but be sure...
Thanks Bill, It never worked in the first place...I did make Leydon jars although I have no idea if they are made correctly. They have foil inside and out,...
The brushes don't touch the belt. I may be able to shift them around a bit. I may be able to put silicone tape on the bottom pulley, also I understand there is...
Well, after cleaning the VDG with some isopropyl alcohol, repositioning the !@@#$$ brushes, replacing the rubber on the drive roller, and using a hair dryer, I...
Lincoln & All: A noble effort! Most of the folks on this list who have built VDGs have learned that there are many variables in the system any one of which...
Thanks. I'm also going to look at what materials might be better in triboelectric series. I may be able to coat the lower pulley with something better than...
Sir, I am the student of electrical engg. from India. I have undertaken the project of Van der graff generator. I have constructed this generator and it is...
The VDG is a generator of very high impedance. Measurement of voltage using any kind of traditional instrument (high voltage dividers etc) will load the VDG...
Yes, I understand now...sorry about that... Larry Rubin ... From: VanDeGraaffGenerator@yahoogroups.com [mailto:VanDeGraaffGenerator@yahoogroups.com]On Behalf...
The rules of thumb I've heard of are "15KV per cm" and "50KV per inch". So, already you have a confusingly useless range of values. Sorry about that. Bill ... ...
Bill: Right on! Even if you could determine the correct multiplier, too many other factors effect the validity of the "correct" multiplier such as R.H.,...
sir, thanks for giving this invaluable advice. to throw some more light on my projet, i have used teflon material on m lower pulley and nylon66 on the upper...
I have had good results with a nylon lower roller and teflon top roller. Also good results with nylon lower and PVC upper roller. Have had poor results when...
Thought some of the details of my vdg might be of interest or at least amusing. My sphere is made from two stainless mixing bowls from Kmart, something like...
... they ... with ... Graphite "slip plate" is conductive, though you need to be sure to shake the can thouroughly or you get too much adhesive spray and not ...
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