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Cycloidal Drive

This 3D-printed model showcases an 11:1 cycloidal drive, featuring 11 lobes on the disk and 12 pins of the housing.
The disk was generated with the following parameters:

  • R = 45 mm (radius of roller pin ring)
  • Rr = 5 mm (radius of roller pins)
  • N = 12 (number of roller pins)
  • E = 3mm (eccentricity of the disk )

The animations and the video show how the disk's lobes engage with the pins. To simplify testing and adjusting the disk parameters, I used a MATLAB file (included), as it’s more straightforward than testing parameters in CAD.

Assembly guide

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Cycloidal Drive

by Arthur Gritzky · original on Printables ↗

Learning / Engineering

♥ 44⬇ 629🖨 2 prints

License: Creative Commons — Attribution ↗roboticsgearboxcycloidalcycloidalgearcycloidaldrive

Print profiles

  • Cycloidal_Drive - Excenter.stlDEFAULT

    ⏱ time and weight estimated after preparation · 1 material(s)

    Made to order: we prepare this file when you order, which adds a few minutes before printing starts.

    Prints on: A1 mini 0.4PLA

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  • Cycloidal_Drive - Input_Hexshaft.stl

    ⏱ time and weight estimated after preparation · 1 material(s)

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    Prints on: A1 mini 0.4PLA

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  • Cycloidal_Drive - Key.stl

    ⏱ time and weight estimated after preparation · 1 material(s)

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    Prints on: A1 mini 0.4PLA

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  • Cycloidal_Drive - Disk.stl

    ⏱ time and weight estimated after preparation · 1 material(s)

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    Prints on: A1 mini 0.4PLA

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  • Cycloidal_Drive - Output_Ring.stl

    ⏱ time and weight estimated after preparation · 1 material(s)

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    Prints on: A1 mini 0.4PLA

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  • Cycloidal_Drive - Cover.stl

    ⏱ time and weight estimated after preparation · 1 material(s)

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    Prints on: A1 mini 0.4PLA

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  • Cycloidal_Drive - Pin_Ring.stl

    ⏱ time and weight estimated after preparation · 1 material(s)

    Made to order: we prepare this file when you order, which adds a few minutes before printing starts.

    Prints on: A1 mini 0.4PLA

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  • Cycloidal_Drive - Housing.stl

    ⏱ time and weight estimated after preparation · 1 material(s)

    Made to order: we prepare this file when you order, which adds a few minutes before printing starts.

    Prints on: A1 mini 0.4PLA

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