FRC Shaft Generator

This is my fourth OpenScad 3d model generator for FRC. It allows users to easily generate 3d models of hex or round shafts. This is a work in progress, and I will continue to update the file as I think of more features to add. As always, please let me know if you notice any bugs, have any questions or comments, or use the customizer to make a part by emailing me at marcusbernstein@gmail.com.