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  1. #1
    Technician
    Join Date
    Aug 2017
    Posts
    84

    Video of new X One problem

    Stuttering, grinding, vibrating in the X-axis... So, I tested the stepper motor cable and it showed good continuity on all 4 wires. So maybe the motor is fried? I dunno... I am also posting this to Qidi support. What do you guys think?

    https://youtu.be/NYpAs5B3ag8

  2. #2
    Technologist
    Join Date
    Jul 2017
    Posts
    160
    Try removing the belt from the stepper motor and see if the print head moves smoothly and quietly. Use the belt to move it ( i.e.pull the belt ).
    If it moves nicely, can you swap a stepper motor out?

  3. #3
    Technician
    Join Date
    Aug 2017
    Posts
    84
    Qidi confirmed that it was the stepper motor cable and sent me a link to purchase. But I just got the repraps from Amazon and spliced on the Qidi motherboard end connector from the old bad cable and my X One is back in business. The reprap cable motor end was the same as Qidi cable so that made it a little easier. But what a PITA. 2 intermittent cable failures (other one was a limit cable) in maybe 3 months of use. I am getting where I can't recommend Qidi printers anymore unless/until they figure out a way to make their cables hold up better. As it is this thing needs way too much maintenance.

  4. #4
    Technician
    Join Date
    Aug 2017
    Posts
    84
    Just a tip for other folks with this printer... I am trying something to ease the stress on the x-axis cables, both of which have failed on my 3 month old machine. The last top cable clamp towards the rear is the problem, IMO. It creates a severe angle and the cables repeatedly bend sharply in the same spot. So I dressed the cables leaving that clamp off. Now the cables furl and unfurl over a larger radius instead of bending in one spot. We'll see how this goes.

    Red circle in photo shows the case stud for the cable clamp I left off.
    Attached Images Attached Images
    Last edited by raylo32; 10-21-2017 at 10:06 AM.

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