Jump to content

Help: do I have bowed axes?


atelles

Recommended Posts

Posted · Help: do I have bowed axes?

I finished levelling the bed, and corners seen ok, but then I printed a test and got this:

P5280006

P5280002

P5280012

The perimeters of the bed seen ok, but the middle of the bed is way too close, and the nozzle is blocked, unable to deposit plastic.

This creates pressure on the nozzle, and when the head moves away from the middle you can see overextrusion.

What could cause this?

My guess is that somehow my axes are bowed in the middle.

But is it the 6mm axes that support the print head? Or is it the XY axes?

 

  • Link to post
    Share on other sites

    Posted · Help: do I have bowed axes?

    either you bent the rods that support the extruder or the bed is bent. fix a glass sheet to the bed and use a piece of paper to gauge the nozzle height across the full extent of the bed. it cant be the x,y axes as they would move the extruder up/down every revolution, more likely one of the extruder support rods is out. you could remove them and roll them over the glass that you checked the bed with.

    Paul

     

  • Link to post
    Share on other sites

    Posted · Help: do I have bowed axes?

    It's probably the plastic is bowed. If you just keep printing it will probably be fine by the 3rd layer. How thick was the first layer? I think the default cura is .3mm to account for this kind of thing.

     

  • Link to post
    Share on other sites

    Posted · Help: do I have bowed axes?

    Hey, thanks Paul and gr5.

    I examined the bed and it was indeed bowed. But I only flipped it over, since the other side is much better.

    This fixed the issue, but now I suppose I have to check my belts, it looks like I have a bad case of backlash:

    P5290022

    P5290017

     

  • 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

      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
      • UltiMaker Cura 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
         
          • Like
        • 27 replies
    ×
    ×
    • Create New...