Parametric 27 to 1 Gearset, with OpenSCADable gears
by MakerBlock, published
I've updated Tony's OpenSCAD file to include code for the brace, used MeshLab/NetFabb Cloud to clean up the two gears, and created a module for organizing the non-gear parts into plates for easy printing. Enjoy!
Update: I had actually used MeshLab, then NetFabb Cloud to fix the winding order issues on the gears.