Replacement Cogwheel for Chinese AC Synchronous Motor 33 rpm

This is a remix of https://www.thingiverse.com/thing:525490 using OpenScad. Replaces a broken cogwheel in the gearbox of a cheap syncronous motor (the type used to rotate disco-balls).
Diameter: 18.7mm
Height: 3 mm
Teeth: 38
Melted directly onto the heated axle of the motor.