Pinion Gear for Trojan Extruder

This is a remixed version of the RC Car motor pinion gear. It is made to match the 0.6 Module gears of the Trojan extruder: https://www.thingiverse.com/thing:1683378
This has printed well and will be tested very soon. The gear teeth are very small on the Trojan, so I use a 0.15mm nozzle to print these gears.
I have made one small improvement in the OpenSCAD script from the original source. Now you can set the hub diameter to be larger than the diameter of the toothed section. This will allow