Jump to content
Ultimaker Community of 3D Printing Experts

U2 motors not working


Recommended Posts

Posted · U2 motors not working

Hi,

I have an U2 here with absolutely no functional motors. The heaters are still working, but any time I try to do anything that involves moving the build plate or print head, the printer throws back a Z switch fault.

The switches appear to function correctly (there is continuity between the appropriate pins when it's pushed or not).

I would see if updating the firmware will fix it, or use pronterface, but the printer isn't connecting via USB either.

I've tried a factory reset, but now I'm stuck on the part where it wants me to calibrate the build plate, but gives the Z switch error instead.

Any help would be appreciated.

Andy

  • Link to post
    Share on other sites
    Posted · U2 motors not working

    @andy1583:

    Did you get a "Z switch broken" (ER05) or "Z switch stuck" (ER06)?

    Did you already made the tests, that are recommended on the error descriptions (https://ultimaker.com/en/resources/19488-z-switch-broken-or-z-switch-stuck or https://ultimaker.com/en/resources/23150-the-z-axis-is-stuck-or-the-limit-switch-is-broken)?

    Have you recently disassembled anything on the printer? Do the motors move okay by hand?

    If so, check if there are no pinched cables behind a cover or something along these lines.

    The switches appear to function correctly (there is continuity between the appropriate pins when it's pushed or not).

    Does that mean, that there's always continuity - regardless of the switch state?

  • Link to post
    Share on other sites
    Posted · U2 motors not working

    I have already done the tests, I get 'Z switch broken', I can hear the switch click when the screw comes into contact with it.

    I can move the motors by hand with no problems.

    No pinched cables, I'd not disassembled it recently up until I had the issue, I have now though, checking to see if there is any damage and to test the switch.

    As for the continuity, I meant to say that the continuity switches along with the button press, so the connection shifts either side of the middle pin when the button is pressed.

  • Link to post
    Share on other sites
    Posted · U2 motors not working

    If one of the safety jumpers it out, with the UM2 you should see a Safety Circuit error. If this was a UMO+ I don't think it presents the safety circuit error, but you'd encounter the same issue whether the motors don't move.

  • Link to post
    Share on other sites
    Posted · U2 motors not working

    I had a similar issue, ER06. 

    Yesterday I decide to make a maintenance in my UM2 because I'm having some bad quality prints in Z and X,Y axis. So I disasembled my Z-rod for cleaning propose (with teeth brush and them a bit of Magnalube) and when I reasembled I feel like the bed is moving freely... maybe I miss some step when I reasemble that? I tryed to take off the white cover but I quit in the middle of the way since I realize that belts are a bit loose and retight it. 

     

    I checked the board and Z-swith (is that the black one right) it is fully inserted, I take it off and re-inserted again. Same stuff, ER06. 

     

    So... I will take a photo of the bottom of my UM2, someone please check if it's missing some screw or if I put those in a wrong hole? For this time I didn't film or took photos during the disasembling as I always do 😕

     

    Thank you by the way...

  • Link to post
    Share on other sites
    Posted (edited) · U2 motors not working

    video uploaded in google drive showing the bed moving freely:

    https://drive.google.com/open?id=1B_E4eLdPHT7iI9UyjTxR3vblgcO0iS5c

     

     

    Is this the Z switch?

    ZSwitch.thumb.jpg.01f2ec10b53ba806b430ec4961e962ff.jpg

     

     

    Is this black wire the one that I should check?

    blackWireZstop.thumb.jpg.7537a14cc2926751f2f500527be0de66.jpg

     

    I moved the printer and I heard something moving inside... Is there something to hold the Z-rod inside the with cover at the back?

     

    I tryed to find limit Z switch in github https://github.com/Ultimaker/Ultimaker2 but it's not there... or it's with another name. I also was lookin for some nut inside the back cover without sucess: 

     

    I hope anyone can help me on that. Cheers!

     

    ZSwitch.jpg

    blackWireZstop.jpg

    Edited by fergazz
    photos
  • Link to post
    Share on other sites
    Posted · U2 motors not working

    Solved. Details here: 

     

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • Talking additive | The 3D printing podcast
        Why should we be the only ones asking questions? Join us and ask Jabil all your questions on September 22nd 5pm CET
          • Like
        • 3 replies
      • Ultimaker masterclass: Optimizing your Ultimaker Cura workflow
        Save your seat for either broadcast on September 23.
        What will you learn?
        · Best practices for iterative print preparation and every lesson you should learn from each print
        · The right way to use per-object settings and when they are most useful
        · Easy-to-use resources for anyone who wants to develop their own printer definitions, plugins, or print profiles
        · How to optimize print profile settings and whether to “keep” or “discard” changes
        · When is the right time to export your drawing from CAD? (Based on Ultimaker Cura’s surprising power as 3D control software)
        · And a whole lot more tips and tricks!
         
        How can I join?
        This free masterclass will take place twice:
        1. 11am CEST (5pm SGT, 5am EDT)
        2. 5pm CEST (11am EDT, 8am PDT, 11pm SGT)
          • Like
        • 0 replies
      • Do you use 3D printing at work? Let us know
        It doesn't matter if you are using 1 Ultimaker or 10, there is inspiration in everything. We're looking for ...
        • 1 reply
    ×
    ×
    • Create New...