High Voltage

Archive for the ‘High Voltage’ Category

$2 Van de Graaff Generator

Van de Graaff generator from found parts and a $2 M&M'S candy tin

Van de Graaff generator from found parts and a $2 M&M’S candy tin

When I was a little boy I was fascinated with static electricity and played a lot with sparks and attracting little pieces of paper to a plastic comb brushed through my hair. The comb was later replaced by an ebonite rod, also brushed through my hair, which my mother, a school physics teacher, brought home. It was great fun but brushing one’s hair gets old quick and, perhaps more importantly, some 30 years later it’s become crystal clear to me that human hair won’t always be so readily available for my static electricity experiments. Unless someone else volunteers theirs. And so it has become obvious: I needed to break my dependence on human hair as the source of high voltage energy! :)

Robert Jemison Van de Graaff to the rescue! His ingenious generator, developed in 1929, appeared to be a perfect replacement of the hair/comb generation technology, and it looks super cool doing it, too, with its tall column and a shiny metal sphere at the top! So, finally, some 30 years after I first read about Van de Graaff, I decided to take action and here is what came out … Read the rest of this entry »

Tools

Coming soon ...

Recent Comments
  • Axel Vercauteren: I’m pretty sure this is an AF issue. In 1.01 Quick AF is enabled by default (See Set...
  • Ankit Lohani: I have to use DRV8332 to control my BLDC motor. Can you provide me a link where i can get the link...
  • AKPOSOSO MICHAEL: Hi, i loose a cd drive and found a diode with ten pin(teeth) not knowning the function of the this...
  • BhanuKiran: Hi I have a BLDC motor with 14 poles and 12 cogs. So, does it have 4 points of maximum attraction ? and...
  • vlad: Thank You! I Spend half day for give privilege to ordinary user for run avrdude. This fix a problem –...
  • Jason: I’m curious how your code would change given the availability of the included stepper library or the 3rd...
  • enver: Hi Dear Fhrends. Last year my father take me one ER 4pc arm control box but hi didnt buy PC card, last week ı...
  • Matija: Hej Debanjan, you will definitely find this answer on instructables. Would pase a link, but I’am afraid...
  • admin: Thanks for sharing your experience! Yeah, a “weak red beam” (also sometimes described as...
  • hroldan: Hi, been reading your website a lot regarding cncs and lasers, nice work, very informative and really deep...
Meta