Driver 0 only moves in one direction
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@fcwilt Yes, I used an entirely different spare stepper I have attached to driver 0 and I'm still getting the same problem.
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@exquisite said in Driver 0 only moves in one direction:
@fcwilt Yes, I used an entirely different spare stepper I have attached to driver 0 and I'm still getting the same problem.
Then I would guess that the driver chip has failed.
You could as a test swap the assignment of X+ and E in your config file and swap the connections on the board. You could then test for correct X axis operation.
Frederick
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@exquisite Do you have any way of checking voltages on the board?
It would be at least INTERESTING to check the driver 0 DIRection pin and see if it switches between forwards and backwards.
A volt meter would work.
The SCHEMATIC says there's a testpoint TP12 that is the Dirver #0 DIRection signal. Try moving forwards and backwarsd and see what voltages you get (with the other probe on ground)
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@alankilian For sure, I'll gladly check that when I get home Tuesday. That would be fairly interesting to me too, I didn't even think to check that.
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Alright so I cannot find my multimeter, so I am unable to check the output of the dir pin.
My issue still stands though, driver 0 seems to have developed a fault that I cannot resolve.
May I request a warranty replacement? -
when and where did you purchase the Duet?
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@phaedrux
I bought it from Filastruder on Dec 13 2021. -
Have you tested with a motor with the shaft completely disconnected from any resistance?
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I tested Driver 0 with a spare stepper I have that's not attached to anything, completely resistance-free. I still get the same result. If I tell the stepper to go right, it goes right. If it tell it to go left, it still goes right.
I know my spare stepper is good because I tested it with my old MKS Gen L.
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Thanks. Please send an email to warranty@duet3d.com and CC your reseller. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out.
