Nema 17 cycloidal drive 25:1

Two-stage cycloidal drive 25:1 for nema 17.
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updated June 16, 2024

Description

3D printed cycloidal drive for Nema 17, gear ratio 25 to 1.
Cycloidal drive is used for Nema 17 to improve motor torque, and can be used for heavy-duty cheap applications.

Gear Ratio: 25:1
Drive Length: 46 mm
Drive Height & Width: 42.30 mm

Nema 17 cycloidal drive strength demo, Stepper motor nema 17 was used on 36V / 2A, T6600 driver and 8 micro-steps/full-step:
https://www.youtube.com/watch?v=oi6n77pJp_w

Nema 17 cycloidal drive working:
https://www.youtube.com/watch?v=FZ2EaotIwz0

Nema 17 cycloidal drive assembly:
https://www.youtube.com/watch?v=BDEoVqHBv_g&t=1s

Drive Torque = (Gear Ratio) 25 X (Nema 17 torque) 0.5 Nm = 12,5 Nm - This is a theoretical 100% max torque - drive performs worse, depending on your printer print tolerances.

File Format: STEP, STL, OBJ
File includes step-by-step assembly instructions, zero-tolerance files and tolerances I used on K1C.

We can also negotiate the price if it is too high for you.

3D PRINTING SETTINGS

It is advisable to print (change parameters accordingly to your printer):

Infill pattern: Cubic
− eccentric fit: Vol 100%, 3+ walls
− cycloid disc: Vol 50%+, 4+ walls
− housing: Vol 35%+, 4+ walls
− cover: Vol 20%+, 3 walls
− transfer block: Vol 30%+, 3 walls

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Model origin

The author marked this model as their own original creation.

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