I am going to get some 36-1 wheels made for a crank angle sensor and thought I'd ask if anyone else would like to go in on an order?
The wheels are 6.75" in diameter, will be ~1.5mm thick mild steel to work with the hall-effect sensor from Jaycar p/n: ZD1900, the center hole is 5/16" with 6 slots 5/16" wide running out radially from the center.
If you are interested, have any suggested changes or would like the dxf/dwg file let me know.