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Polargraph - Drawing machine

This drawing robot is driven by 2 stepper motors, an Arduino Uno and a G-Shield. The modular design of the machine allows being scaled up in order to produce gigantic drawings, by only extending the length of the timing belt. In order to keep a good drawing precision, the timing belt needs to be tensed: some long m16 hex nuts and bolts are attached to the weights holder. Finally, all the pulleys have bearings embedded in order to minimize the friction.

For more check out our “Book of Joints”

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