Bruce's Wimshurst Machine
Jake von Slatt — Mon, 11/09/2009 - 16:48

Bruce writes:
Hi Jake,
Attached are a couple current images of my 20 sector Wimshurst machine based on your construction article, with changes made as needed to suit locally available materials and to resolve some issues that showed up after the initial construction.
Click through to the full set of pictures, this is a very elegant machine and some of Bruce's innovations make it superior to my own!
These are some differences in my machine from the construction article. The drive bands are 1/8" black braided cord with white strands inside from an army surplus store with the ends melted together. The current leyden jars are plastic toothpick containers on top of pieces of florescent light tube protector material salvaged from one of several protector tubing jars that shorted between the foil edges. The collector supports are pieces of small size PVC tubing with brass couplings hammered into the ends and glued with thin CA glue. The set screw collars are made from nylon spacers and 6-32 brass screws.
Building and getting the machine operational was a lot of fun, debugging a few problems and getting the best out of it sometimes paid off in the end.
Bruce
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Wimshurst machine
James R. Bailey — Fri, 11/13/2009 - 18:47I remember making my own Wimshurst machine for an assignment in 9th grade science class circa 1964. It was made of two 78 rpm records with aluminum foil cut into truncated triangles that were taped to the records. They revolved on a wooden dowel with wooden spools as spacers. I made a crank and devised a simple pully system with one of the rubber bands that turned the spools crossed in a figure 8 so the records revolved in opposite directions. The records were probably made of bakelite. Coat hanger wire held aluminum foil "brushes" and relayed the static electricity to coat hanger wire discharge points. The darned thing actually worked, and I got an A. From a long-time electronics buff geek and would-be steam punk...I guess.
Great job James
dragonrider — Sat, 11/14/2009 - 09:13Thanks for sharing about the machine you built, I can appreciate that kind of home-brew engineering. Though my machine is built for 14" disks following Jake's article, I first made 16 sector disks from a couple old 12" 33-1/3 vinyl LP records since I had them on hand, then after I got it working I took on making acrylic disks.