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UM2: "Error - Stopped: X or Y switch stuck"


eric-lester

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Posted · UM2: "Error - Stopped: X or Y switch stuck"

So I've had my UM2 for over a week now, and am happy to say that I've had...minimal problems with it. (I've been fighting the feeder and was actually printing a better one when this issue happened.) I had a print break off the plate, so I aborted it and prepared to print again after a while. I started it, but I got nowhere as the head wouldn't home correctly. Later attempts after cycling power yielded the same result: the printhead would move along the x-axis first as it always did, hit the switch, then stops dead against the left side with the steppers locked. It doesn't even attempt to move along the y-axis. The dial starts changing colors (which is neat), and the screen displays "ERROR - STOPPED" and below that "X or Y switch stuck" (which is not) "Contact: support@ultimaker.com"

I've cycled power several times to the same effect; when the power is off, I've moved the head and everything still feels smooth. The switches look fine and are definitely not "stuck" in that I can depress them easily with the appropriate click. Any ideas?

 

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    Posted · UM2: "Error - Stopped: X or Y switch stuck"

    Yes, and to no avail.

     

    The firmware just reads a value from a pin on the electronics board and it seems that this always gives the signal: "endstop is pressed".

    You can check the cables and connectors for yourself (with the help of the assembly manual)

    Or just do what the displayed message recommends: contact support...

    Sorry - no better news...

     

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    Posted · UM2: "Error - Stopped: X or Y switch stuck"

    Ah! Finally. I did some work to retension my feeder not too long ago. So it turned out that the wire I had running to my Y endstop got caught between the feeder stepper motor and the printer's frame, crushing it. The insulation got pressed flat, and the metal of the frame and stepper motor caused it to short. I just covered the wires in kapton tape and reran them. All is well! ^^

     

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