Python script to generate a pair of Cycloidal Gears.
With credit for the earlier work by Dr. Rainer Hessmer and Hugh Sparks
https://www.csparks.com/watchmaking/CycloidalGears/index.jxl
http://www.hessmer.org/gears/CycloidalGearBuilder.html
Also for the assistance of Alibre Users idslk and NateLiqGrav who helped with debugging and general Python pointers