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Planar Two to One Way Mechanism

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Creation quality: 5.0/5 (2 votes)
Evaluation of members on the printability, utility, level of detail, etc.

Designer

Mechanistic

3D model description

Assembly Video: https://youtu.be/0pOq9ngmYwc

The two-way to one-way mechanism can be found in most modern automatic watch movements. It is designed in a "flat" or planar configuration to fit the thin movement's case. I've seen other printable designs that use bevel gears, but this planar design makes it much easier to visualize and understand how it works.

A PDF Assembly guide can be found in the zip file package.

Non printable hardware:

M2x6 Screw: x9

M3x10 Screw: x6

M3x14-16 screw: x3

Optional: MR63ZZ Bearing (X2) Link: https://bit.ly/35H5mMy


3D printing settings

All parts are printed in PLA with 0.4mm (or smaller) nozzle

20% infill, 0.15mm layer height

Special part: 11_Rotor must be printed with 100% infill.

Use a 3mm drill bit to loosen the pivot holes if necessary.

Screws must be loosely tightened to allow the gears to rotate freely.

3D printer file information

  • Design number: 659404
  • 3D design format: ZIP Folder details Close
    • Planar_One_Way Mechanism.zip
      • STL Files/03_Input_Gear_Bearing_Version.stl
      • STL Files/07_Ratchet_Paw.stl
      • STL Files/02_Frame_Feet.stl
      • STL Files/05_Coupling_Pinion.stl
      • STL Files/12_Winding_Handle.stl
      • STL Files/13_Winding_Pos.stl
      • STL Files/01_Frame.stl
      • STL Files/03_Input_Gear_Standard.stl
      • STL Files/10_Output_Gear.stl
      • STL Files/11_Rotor.stl
      • STL Files/06_Ratchet_Wheel.stl
      • STL Files/09_Ratchet_Spring/09_Ratchet_Spring_+1.stl
      • STL Files/09_Ratchet_Spring/09_Ratchet_Spring.stl
      • STL Files/04_Coupling_Wheel/04_Coupling_Wheel_-1.stl
      • STL Files/04_Coupling_Wheel/04_Coupling_Wheel_+1.stl
      • STL Files/04_Coupling_Wheel/04_Coupling_Wheel_0.stl
      • STL Files/08_Coupling_Shaft/08_Coupling_Shaft_+1.stl
      • STL Files/08_Coupling_Shaft/08_Coupling_Shaft_-1.stl
      • STL Files/08_Coupling_Shaft/08_Coupling_Shaft_0.stl
      • Two to One Way Mechanism.pdf

    Learn more about the formats

  • Last update: 2022-03-09 at 17:30
  • Publication date: 2022-03-08 at 19:29

License

CC BY-NC-SA - Attribution - Non commercial - Share alike

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