Skip to content

Planar Two to One Way Mechanism

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



3D model description

Assembly Video:

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:

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
      • 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


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


Issue with this design? Report a problem.

Best sellers of the category Clocks & watches

Add a comment

Would you like to support Cults?

You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

  • ADVERTISING: Disable your banner blocker (AdBlock, …) and click on our banner ads.

  • AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon.

  • DONATE: If you want, you can make a donation via Ko-Fi 💜.

  • WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!