Sample · module 2 · 20° · helical 20°

18T : 54T · 20° helical

A quiet 3 : 1 helical pair, 20° helix, keyed bores; the teeth overlap for a smooth mesh.

Industrial18 : 54

Build it with your AI

Using the CheapCAD Tools connector, design a two-gear drive in Gear Designer: module 2 mm, helical, helix angle 20°, gear 1 right-handed, face width 20 mm. Gear 1: 18 teeth, a 12 mm bore with a keyway 4 mm wide and 1.8 mm deep. Gear 2: 54 teeth, a 20 mm bore with a keyway 6 mm wide and 2.8 mm deep, spokes: 5 of them, Hub OD 36 mm, Width 10 mm, Rim Depth 12 mm, Fillets 2 mm at the rim and 4 mm at the hub. Check the design, apply any Auto-fix it suggests, then export both gears as STL and give me the download link.

Paste it into Claude, ChatGPT or any AI app with the CheapCAD Tools connector, and it designs this gear set with you, checks it and hands you the files. How to connect your AI.

What's in this design

Gear 1 · 18 teeth

18T gear · tip Ø42.3 mm · bore Ø12 mm, keyway 4 mm wide

Gear 2 · 54 teeth

54T gear · tip Ø118.9 mm · bore Ø20 mm, keyway 6 mm wide · 5 spokes, rim 12

The mesh · module 2 · 20° · helical 20°

ratio 3 : 1 · centre distance 76.62 mm · contact ratio 1.51 + overlap 1.09 · backlash 0.132–0.249 mm

The link opens both parts in the Gear Designer's 3D Mode. Change the teeth, module or pitch, bore, hub or spokes, then download STL, STEP, DXF or SVG.

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