Spur Gear Generator

Press G to cycle arrangements. Keys 1/2/3/4 select the configured gear, planet, ring, or rack. Space pauses the animation.

Gear 1
Gear 2
Internal ring gear

The outside is circular. Its rim thickness currently follows the module.

Gear rack

P cycles the mounting direction. With the rack selected, H and B adjust the holes.

Worm

Keys X, C, V/Shift+V, and L/Shift+L adjust these values.