================================================ FCSprocket: a Sprocket Generator for FreeCAD

This is a simple sprocket generation tool. Sprockets are used in combination with roller chain to transmit power. The tooth profiles are drawn according to ANSI standards from the methods outlined in:

Standard handbook of chains : chains for power transmission and material handling. Boca Raton: Taylor & Francis, 2006. Print.

AND

Oberg, Erik, et al. Machinery's handbook : a reference book for the mechanical engineer, designer, manufacturing engineer, draftsman, toolmaker, and machinist. New York: Industrial Press, 2016. Print.

This code is based on the work of David Douard and his implementation of the gear generator (fcgear) found in FreeCAD.