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PLA Spring Motor Demonstrator 2

3D model description

https://www.youtube.com/watch?v=cxPHcMXsZno

PLA Spring Motor Demonstrator 2 is an updated Autodesk Fusion 360 design of my original PLA Spring Motor Demonstrator design of 5 years ago.

The original PLA Spring Motor Demonstrator was designed as a "proof of concept" tool to test whether a 3D printed PLA spring could power a gear train and move a vehicle. As a result of that successful test, I was able to design a number of 3D printed PLA spring powered vehicles.

This updated version has a 1 (drive) to 125 (driven) gear ratio in three gear stages and, as shown in the side by side comparison photograph, is slightly smaller than the original. And while not a requirement, I used Ultimaker "Tough PLA" for the pawl, spring and frames for additional strength and longevity.

PLA Spring Motor Demonstrator 2 is a fairly easy print and assembly, and even though it was originally designed as a proof of concept tool, it is still a fun desktop conversation piece.

As usual, I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to point them out as I do make mistakes in plenty.

Designed using Autodesk Fusion 360, sliced using Cura 3.5.0, and printed in PLA and Tough PLA on an Ultimaker 2+ Extended and an Ultimaker 3 Extended.

  • 3D model format: STL

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CC BY NC SA

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