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jvsava

Wimshurst Machine

by vonslatt, published

jvsava
Wimshurst Machine by vonslatt Jan 13, 2015

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4569Views 2648Downloads Found in Physics & Astronomy

Summary

This is a 3D printed Wimshurst machine suitable for printing on a 200x200x100 RepRap. Mechanically it works very well, but electrically it is a bit weak, putting out sparks no bigger that about 1/2 inch. I will likely get back to this project one day, but in the meantime I'd thought I'd release the files for others to play with.

Included are STLs and Autodesk 123D Design source files.

Note: The two large concentric circles are drive belts to be printed in TPE, see the link below for notes on other materials.

Full Details Here: http://steampunkworkshop.com/3d-printed-wimshurst-machine/ ?

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Fascinating project Jake,
After seeing your machine here and some other information on these machines, a few ideas:

  1. The PLA may have been accumulating a layer of copper from your copper braid in use faster than what your ABS does and reducing inter-sector resistance. In your above picture, not sure if the machine is static or moving, but I can see what looks like tracks on the plastic. Clear/white plastic makes great sense.
  2. Minimizing the volume of plastic between sector conductors would improve isolation, I'm thinking if you convert them to islands with skinny peninsulas physically stabilizing them in the disk's plane, they would give far better isolation. Ideally, there should be a long physical route between sectors. I think the brushes shouldn't be able to track on any material between the sectors.
  3. A disk that assembles in parts could make it easier to produce a larger machine while also being part of the sector electrical isolation design.
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