Circle Tangents in OpenSCAD

thingiverse

I was struggling with some basic OpenSCAD to get the points for lines that are tangential to two arbitrary circles. To get it right, I turned to Professor Google and found some equations that made it much easier. Enjoy! Update: I've been pointed to a thread where there's a fantastic bit of code at the bottom that solves the problem in a different way and is probably easier to use! http://forum.openscad.org/Script-to-replicate-hull-and-minkowskis-for-CSG-export-import-into-FreeCAD-tp16537p16556.html