Jump to content
Ultimaker Community of 3D Printing Experts

axis offset


urban
 Share

Recommended Posts

Posted · axis offset

Hi there

I assembled my ultimaker but my prints are leaning to the front of the machine

(y- axis).

but I tried almost everything I could think off and I'm not sure if it's maybe a software/firmware problem, a motor problem or really a belt issue.

as it should look like:

http://www.thingiverse.com/thing:37327

as it is:

jujtxz.jpg

any help would be much appreciated! thanks

 

  • Link to post
    Share on other sites

    Posted · axis offset

    Almost certainly one or other pulleys for the y-axis is slipping. Check that they are all tight, includin the one on the motor itself. You might want to use a sharpie marker to put a mark on the pulley and shaft, and make sure that the marks don't move as you print.

  • Link to post
    Share on other sites

    Posted · axis offset

    It's definitely hardware and not software. Either a pulley is slipping or you are losing steps. You can lose steps if the voltage is too low (very unlikely so look into this last). Most likely is what illuminarti said. Tighten all 6 (yes six!) set screws in all 6 pulleys for the Y axis. Tighten the hell out of those set screws. Most likely it's one of the 2 pulleys on the short axis.

    Also look at the short belt. If the belt twists differently everytime it changes direction, then it is probably rubbing against the wood frame. Move the pulleys a mm more away from the frame by using washers under the spacer and make sure the motor gear is as close as possible to the motor without touching.

     

  • Link to post
    Share on other sites

    Posted · axis offset

    Thanks for your replays!

    I solved it by changing the black hex nut screws to the silver ones, provided by Ultimaker.

    The black ones where tight, but my guess is that they are too "weak" to grip firmly to the axis.

    I also moved the pully of the y-axis motor tight to the pully of the axis.

    I now have really good resolutions....

     

  • Link to post
    Share on other sites

    Posted · axis offset

    The extras from ultimaker are spares because sometimes the ones in the pulleys aren't machined properly to a point.

     

  • Link to post
    Share on other sites

    Posted · axis offset

    Also, don't forget to deselect 'Solid infill top' in the expert options :wink:

     

  • Link to post
    Share on other sites

    Posted · axis offset

    All,

    Thanks for the great advice. My prints were "jagged" in the Y-dimension. I lossened the caps on the rod ends, tightened the hex nuts on the Y-motor and pulleys, and re-levelled the table and the print (tested the Ultimaker robot) came out perfectly.

    Cheers,

    Greg

     

  • Link to post
    Share on other sites

    Posted · axis offset

    Yeah--according to the menu design, you have to be an "Expert" to make a vase using Cura! ;)

     

    Also, don't forget to deselect 'Solid infill top' in the expert options :wink:

     

  • 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
     Share

    • Our picks

      • 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
        • 11 replies
    ×
    ×
    • Create New...