Originally Posted by
rgillard
TotallyRC,
Yes the motor locks up and makes a high pitched squealing sound.
I Just have a voltage drop once I connect the breakout board of 3.2V. When not connected to the driver board I have 5V output but once I connect the step and direction it drops to 1.8V. Lo signal is approx 0V. I have left the enable input empty as stated in the PDF attached and I have set the jumper J6 to enable. I connected the ground from the breakout board to the ground connector beside the enable input...I have adjusted the VREF so that the motor does not overheat when powered up. I selected different pins as outputs to rule out pin 2 and 3 having a problem. This really should be very simple but I'm obviously doing something elementary wrong which is causing this problem.
As regards the test rig, it really is only going to be two printers joined together. Nothing major at all really. I will eventually buy a full setup off CandCNC but at the moment I can not afford it. When I can I hope I will have a slightly clearer idea of how the whole system works..
Ronan
Well according to the attached pdf, when you have a high signal, it must be at least 2.9 volts. If all you are getting is 1.8, then of course it will never work.
This is the point where I am in over my head. Maybe someone else can step in.
But just for the sake of asking, which breakout board do you have?
Mike
Warning: DIY CNC may cause extreme hair loss due to you pulling your hair out.