Cogwright – Gear Generator for Blender

Cogwright builds gears that really mesh. Every tooth is a true involute (or a cycloidal clock tooth), every pair sits at its exact center distance and every gear is turned so its teeth fall into the gaps of its neighbor. Press Play and the whole mechanism runs at the right ratios, from a simple spur pair to a planetary gearbox, a worm drive or a pendulum clock that ticks beat by beat.

Pick one of 50 ready-made mechanisms from the picture gallery, then change anything: tooth count, module, pressure angle, helix angle, spokes, hub, frame or material. The sidebar shows the live ratio, center distance and pendulum beat, and one click gives you a surprise design, a variation or a new finish.

Gears and drives

• Spur, helical and herringbone gears with real involute teeth, profile shift for small pinions and backlash
• Internal ring gears, planetary sets (ring, carrier or sun held), straight, spiral and miter bevel gears
• Rack and pinion, single and multi-start worm drives, ratchet wheels with a clicking pawl and spring
• Simple and compound gear trains with zigzag, line or arc layouts, or your own teeth list

Clockwork

• Graham deadbeat, recoil anchor and club tooth escapements with a swinging pendulum
• Full clock movements: going train, motion works with a true 12 : 1 hour wheel, hands and chapter ring
• Plates with pillars and jewels, skeleton bridges or a single back plate

Steampunk and style

• Random gear walls where every gear meshes, with stacked gears on shared axles
• Solid, recessed, holed, spoked, curved spoke, clock crossing, slotted and filigree wheels
• PBR brass, bronze, copper, gold, steel, blued steel, cast iron, nylon and more, with spun finish and age

Animation

• Drivers that follow the frame (no keyframes), or bake keys for game engines with one click
• Each moving part is its own object with its pivot on its axle

Requires Blender 4.2 or newer. Tested on Blender 4.2, 4.5 and 5.2 LTS. Works in Cycles and EEVEE.