Thanks for this plugin. I'm a longtime user of gear.3.rb and this looks like an upgrade.

Addition of worm gear function would be great. I'm struggling with getting a parametric worm gear in sketchup which I use to export to .stl and print on a 3D printer for various projects. The hard part (as discussed in this thingiverse model: http://www.thingiverse.com/thing:9827) is the worm gear part.

Anyway, thanks again,
Brendan