Wind Generator Pvc
materials for a van de graff generator?
ok so i'm building a van de graff generator since it seems to be the only "safe" hv there is really. what i need to know is, what should the rollers be made of? what belt should i use? where can i find a good top load? can i make the combs out of frayed wire and how much would i need? i have a motor that has a little shaft off of it and i want to know if it's ok to wind teflon tape around it. (that IS that water seal tape isn't it? mine says teflon tape on the side) it's a metal shaft sticking out but i've heard teflon is really really good. i have about a foot and a half long peice of pvc that i can use for the body of it...but how would i make the rollers? what good rollers can i use? i know i have alot of questions sorry.....oh and the motor is from one of those box fans, idk if that helps. i understand the whole concept of how it works, but i also know that what it's made of is crucial to it working properly and i don't know the materials...help?
OK. You want to build a van De Graff. How big are you considering? If you want something that will always work for demo's , consider something from Ramsey Electronics. Your rollers should be high resistance plastics that are good mechanically. The large commercial units use Delrin plastic and the brushes are made from something they call "gold " brushes. The trick here is to use something that will conduct but not catch fire like steel wool. Your local driv e belt supply people will have wide belts of various lengths that will be suitable. PVC piping of various sizes will always work as the tower. Your motor will have to have a bit of torque. If you are anywhere near Boston, visit the 1 million volt unit that van de Graff built himself. ALSO--- A friend whose hobby was electronics and photography made a nice van de Graff using a washing machine motor, Fine brush display from the top collector. Unfortunately many of his negatives suffered bright flashes that ruined them. When you exceed 30 KV, you will start generating soft X-rays. When you go much above that, you can start to get into Hard X-rays. BE CAREFUL! Keep your computer and all electronics away from it.
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First attempt at cutting wind generator blades form PVC (3)
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