Coil Winders

[WXYZCIENCE]

I built this coil winder from pieces of puck board.





The next picture is the first test coil 40 turns. I used instant glue to hold the wires together.





Then a 1/2" mylar tape was added to finish the first coil.





The winder was disassembled and the coil was presses out. The instant glue did not bind to the poly puck board and the coil was removed easily.





The first test with this coil and 2 magnets at 250 rpm was 1.5v at .79 amps. Now I have to construct 17 more.


Joseph.

[DaveW]

  Not bad!!  

[DanG]

A bit more explanation of what the plastic is from please, the only place I've seen similar "new and for sale" is kitchen cutting boards.

I've found high-density poly board on junked high grade antennas & after seeing how you used it I will need to find something else to hold the garage door tegether where I spliced over the failed glue seams w/ my stash of 5/8" thick poly boards!

[WXYZCIENCE]

DanG, the plastic you are talking about is an ultra dense polyethylene... very expensive. Puck board so named because hockey arenas use it for their boards. It is a softer polyethylene, comes in lots of colors and is relatively inexpensive. It cuts and is drilled easily but has low heat tolerance. I have used it for hundreds of projects with great success. Most plastic suppliers have cut-offs you can purchase.


Joseph.

[SparWeb]

I used puckboard in the mold for casting my stator.  The epoxy did not bond to the sheet, leaving me with a mold I could split open easily when I was done.

It also made good magnet templates for the rotors, instead of a more expensive piece of aluminum.