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WIP. So far there has not been a successful 3D printed engine but this is the idea: A 3D printed spring's energy is captured and released to a series of gears. The design so far is promising but needs work.
Update with upload of V1.2: http://joesmakerbot.blogspot.com/2013/01/fully-3d-printed-engine-update-2.html
Refer to the exploded diagram as you read these steps.
Wind up the engine to compress the springs. Then let it go. The output gears should not move when winding and when released they should each move at gradating rates.
As of this time the actual output speeds and whether they can be slowed down is unknown. Also I suspect that the spring will break frequently so I made easy access to replacing them. Kind of like batteries.
If this works it can be used to (briefly?) power an action.
Wind-Up Engine V1.2 Updated - Fully Printed by cymon is licensed under the Creative Commons - Attribution license.
So what's this mean?
We're sure cymon would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!