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YACS Yet Another CNC-cut Spirograph cnc/laser

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Creation quality: 5.0/5 (1 vote)
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3D model description

This is YACS, yet another cnc-cut spirograph. As a specialty it uses hypocycloidal (round) teeth which allows optimized machining on a cnc, as the tooldiameter has no problems on small teeth like with the sharp edges of involute gears. Furthermore I added not only holes, but three triangles on each planet gear. This results in interesting shapes. As a gearset I decided to use 48, 50 and 52 teeth for the sun gear and 39, 40 and 42 teeth for the planet. This results in 9 different rosettes:

Rosettes

My build was done on a desktop cnc-machine by Stepcraft using a spiral-toothed 1.2 mm flute. I used Pertinax I got from as a donation from a reader. This material is perfect for the task: it's hard, extremely smooth and can be machined well. Be sure to cut the inner wheels first!

A laser cutter might be a good alternative tool to create smaller versions. Please be aware that the stl-file is not tested. It's for viewing only.

Visit https://www.zenziwerken.de/en/Spielsachen for more toy designs.

3D printer file information

  • 3D design format: STL Folder details Close
    • Spirograph.stl

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  • Publication date: 2019-07-09 at 13:52
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    Published to Thingiverse on: 2016-12-30 at 13:41

License

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

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