About this 3D model

These are the parametric version of the gear wheels that are being used in the caterpillar robot that I'm deisgning with Dannynoc here http://www.thingiverse.com/thing:7752 The parameters that define the piece are explained in the scad file. In the example that I've uploaded,I've added some holes in order to fix this wheel to a futaba servo. ------- Added the parametric links in case someone wants to print them with the wheel. They are a derivatie work of http://www.thingiverse.com/thing:7209