rogerclark Wrote:
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> Is it possible for the Arduino to send commands to
> the stepper drivers which don't cause the motor to
> move, but causes them to draw large currents and
> hence be destroyed ??
Steppers consume most current when standing still, thats natural and how they work. When they move, it varies, so its actually a bit less. To me symptoms also seem like a short, 12v on 5v line, or perhaps even a reverse polarity, dunno if ramps has rvp or not (reverse polarity protection), but i dont think it does.
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> Is it possible for the Arduino to send commands to
> the stepper drivers which don't cause the motor to
> move, but causes them to draw large currents and
> hence be destroyed ??
Steppers consume most current when standing still, thats natural and how they work. When they move, it varies, so its actually a bit less. To me symptoms also seem like a short, 12v on 5v line, or perhaps even a reverse polarity, dunno if ramps has rvp or not (reverse polarity protection), but i dont think it does.