Gears

Gears
This extension is a fork of https://github.com/ssentinel/inkscape-gears-dev and allowes to create different gear types with/without spokes, racks, etc. 

  

Gears2
Another generator for gears, based on https://github.com/attoparsec/inkscape-extension

Ratchet


Sprocket
When doing sprockets for bikes, you can use this extension. The origin of this extension is https://github.com/attoparsec/inkscape-extensions