Stackable planetary gearbox

About this part

A 3D-printed planetary gearbox designed to mount directly to a motor. You can stack stages to increase the reduction. Includes a hex-body 36-tooth ring gear, a 12-tooth sun gear, three 12-tooth planets, an output gear, and a retainer plate. Motor and M3 bolts are not included.

Single stage uses about 35 g of PETG. Please compare your setup with the part dimensions below before ordering.

Manufactured by Eksenix in PETG using FDM 3D printing (color selectable).

Assembly images

Compatibility

General-purpose. Mounting holes are for M3 bolts; bolts and motor are not included. Please verify your motor shaft size and hole pattern against the part dimensions before ordering.

Technical details

Housing

Hex exterior, stackable stage design

Gear train

36T ring, 12T sun, 3×12T planets

Part 01 size

55.8 × 55.8 × 15.0 mm

Part 02 size

36.0 × 36.0 × 14.6 mm

Part 03 size

16.4 × 16.4 × 10.0 mm

Part 04 size

16.8 × 16.8 × 10.0 mm

Part 05 size

16.8 × 16.8 × 10.0 mm

Part 06 size

16.8 × 16.8 × 10.0 mm

Part 07 size

56.8 × 50.0 × 6.0 mm

Manufacturing

FDM 3D printing (PETG)

Weight (single stage)

~35 g (PETG)

This order is for a physical part. STEP / STL files are private and are not included.