About this 3D model
This is a set of herringbone gears similar to http://www.thingiverse.com/thing:10538 but done entirely in openscad based loosely on http://www.thingiverse.com/thing:6544 UPDATED 25/12/2011 uploaded my latest script which I've worked on a lot. It's generating some nice gears now.Also updated the STL, ratio is 45:11, nut trap should fit perfectly straight off the bed now.