Manfred

Testing the triggering of stepping motors

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To test the triggering of stepping motors I made this "x-y plotter".
With this small stepping motors I can use the + 5 V of the raspberry for the electrical supply. On the PCB there is a ULN2003 to boost the ports. There are also 4 LEDs to indicate the state of the ports. On the motor shaft there is a M6 studding fixed. So one turn is equivalent 1 mm advance.
To fix different indicators (scriber, pencil, laser) I made this disk wit for different holes.

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