PAS Magnetic sensor ring for Metropolis Patterson Transmission

A twelve pole magnet ring to mount on a Metropolis Patterson Transmission left crank to use with a PAS magnetic sensor.

The original ring broke so this one is designed to replace it. The arm goes on the inside of the crank and can be held in place with two cable ties. I used a small piece of inner tube rubber to go between the arm and the crank.

Fits Metropolis Patterson Transmission left hand crank. 12 poles fits 5mm cylindrical magnets 3mm deep. Sometimes the seams can make the holes too small so I used a 5mm drill bit to clean the holes Sorry I don't know how to export .scad files from fusion 360 so it isn't easily editable.