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sgzuccaro / Tumbler_Turner

This includes all the electrical/mechanical/software required for the turner
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Current #2

Open sgzuccaro opened 3 years ago

sgzuccaro commented 3 years ago

Stepper Driver Model Max A RMS A4988 2A TMC2208 1.2A DRV8825 2.0A TMC2100 2.5A Example for A4988 Stepper Current = VREF × Max RMS Finding VREF: Stepper Current/Max RMS = VREG VREF POT: 2.0=0.8 × 2.5

sgzuccaro commented 3 years ago

Max rms is 1.2amp. This is a Vref=1.2/0.71 which is 1.69.

Set rms low like 0.5-0.8A. Therefore: Vref=0.7V to 1.1V

for tumbler: Vref=0.7V** unplug stepper before measuring! Also be connected to 12v