surf2solid.py

A quick and dirty sketch of a python clone of http://www.thingiverse.com/thing:6955

Takes a function of x,y,r, and t (theta, in radians), plots it, returns it as a solid which it spits to stdout, or writes to a .scad or .stl file, depending on usage. Arguments are set toward the top of the scrip. The function is specified as a string. This script requires numpy. Comments need improvement.

Python seems popular, so I'm hoping this will be stolen and modified.

There are probably still bug