ErgoNamo (Dynamo)
A dynamo developed in the course: "41030 Mechatronics Engineering Design" at the Technical University of Denmark.
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A small video showing the product:
https://www.youtube.com/watch?v=iPWay61W_zI
Besides the 3D printed objects you will need a LED-diode, a small DC-motor, a joulethief for optimal light quality, some screws and wire.