Gear generator - All parametricGrub generator - All parametric Very simple to make complex gears: Sample for gear and grub. Sample for gear and groove. Samples gears from 10 teeth to 50 with 5mm hole.Derivation of: Parametric Gear by D1plo1d; Parametric Pulley by droftarts;You can help me to do more things like this. Buy my designs at pinshape:http://pinshape.com/users/27920-jsirgado The OpenSCAD file is there, you can change all.You need the files:Use the files "Gear_ With*Sample.scad" to create your own gears.For double helical gears with grub bigger than the gear, make the small gear taller than the big gear to avoid attrition.