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Generate printable gear pairs in your browser.

“See effect” compares example settings at a fixed scale.

Gear form
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Dimensions and tooth shape
First gear shaft hole
Matching gear and print layout
Tooth details and sampling

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STL exports use the separated print layout, with both parts at Z=0. Spiroid and Hypoid always include both gears.

Straight and spiral bevel pairs use 90° shafts. Compliant previews include spring preload overlap. Novikov bevel gears have curved end faces and may need supports. No fit allowance is added.

D-shaft presets use diameter / flat-to-opposite-surface dimensions of 5 / 4.5, 6.35 / 5.85, and 8 / 7.5 mm. Check your motor drawing: 5 mm, 6.35 mm, 8 mm.