Hydrobot Disk Testing - April 15, 2006

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These interrupter disks were cut on the NYU laser cutter. They will block the flow of water after it leaves the nozzle for pulsing effects.

Disks mounted to stepper motors.

Using an LED to get an idea of the pulse frequency.

This is the current when holding a position (disk not turning). The driver chip is rated for this, but it gets *really* hot so it definitely needs a heatsink.