Jump to content
Ultimaker Community of 3D Printing Experts

Z-Axis skips


Clarity
 Share

Recommended Posts

Posted · Z-Axis skips

Hello everyone.

Having UM2 Extended for about a week already, and generally it's fine.. Except ABS clogging and one more trouble getting me every few prints. When I leave printer unattended, almost every time at the random layer, platform jumps a good 5 cm down ruining the print. Anyone had this issue? I searched and found only hardware-related issues. but mine seems fine when lowering/raising platform.

Also I'm using cura and sometimes S3D when I need supports. It seems this happens while using S3D, but I'm not completely sure.

Thanks in advance!

  • Link to post
    Share on other sites

    • 2 weeks later...

    The Z axis jumping suddenly is a new issue and it seems to be related to overheating of the *driver* on the board under the printer. Most people fix it by lowering the current slightly. The issue possibly is *not* temperature related as some people claim cooling the board doesn't help yet lowering the current *does* help. Anyway try adding this gcode to see what happens:

    M907 Z1000

    That sets the Z stepper current to 1000ma. Default is possibly 1300? I forget. Also consider removing bottom cover, printing with printer at 45 degrees (it will print at any angle and even upside-down just fine) and have a fan blow gently on the underside.

    Experiment and let us know what works so I can tell other people. It's really a small percentage of people with this problem (guessing 1% but don't really know) and it's a new issue (something different about the driver chip maybe or just the hot weather?).

  • Link to post
    Share on other sites

    • 2 years later...

    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
     Share

    • Our picks

      • The Ultimaker Showcase — October 14. What's new?
        Your dear friends at Ultimaker have some exciting news and insights for you!
         
        • 0 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 8 replies
    ×
    ×
    • Create New...