Jump to content

Recommended Posts

Posted (edited) · Rims appearing every 5 layers on fine prints?

I don't own an Ultimaker, but several CEL Roboxes. The printer is really excellent, easy-to-use, very versatile with interchangeable tool heads (dual material just released, drag knife under development, laser engraver and paste extruder on the horizon) and quite affordable.

The custom-built AutoMaker software relies on Cura for slicing, which is why I'm posting my question in this forum:

I've spotted not only on mine, also on other people’s Roboxes on very fine prints (20 micron layers) the phenomenon of tiny rims, vertically reoccuring approx. every 5 layers. The precision with which the rims reoccur makes me believe that it is not a mechanically-indicated issue, but an issue caused in software, perhaps something like a numerical rounding error.

Has anyone of you folks ever seen these rims on any fine Ultramaker prints? If so, could you post images?

dualmaterialprint_spiral_cone.jpg

26140774746_36c89ffcb0_z.jpg

26140772296_eb317733aa_z.jpg

Edited by Guest
  • Link to post
    Share on other sites

    Posted · Rims appearing every 5 layers on fine prints?

    It looks like a Z axis issue. The Z axis moves a smaller distance than it should every 5 layers. I'm wondering if you are close the resolution of the Z and you lose a step every 5 layers. Stepper drivers are very complicated and with microstepping it is very common for some microsteps to do nothing (not advance the motor) for complicated reasons that I don't fully understand such that it is not quite linear movement (but close enough for most things).

    Alternatively is that Z distance where the pattern repeats an identical distance to one full rotation of Z screw? It seems unlikely but worth checking.

  • 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

      • Help Us Improve Cura – Join the Ultimaker Research Program
        🚀 Help Shape the Future of Cura and Digital Factory – Join Our Power User Research Program!
        We’re looking for active users of Cura and Digital Factory — across professional and educational use cases — to help us improve the next generation of our tools.
        Our Power User Research Program kicks off with a quick 15-minute interview to learn about your setup and workflows. If selected, you’ll be invited into a small group of users who get early access to features and help us shape the future of 3D printing software.

        🧪 What to Expect:
        A short 15-minute kickoff interview to help us get to know you If selected, bi-monthly research sessions (15–30 minutes) where we’ll test features, review workflows, or gather feedback Occasional invites to try out early prototypes or vote on upcoming improvements
        🎁 What You’ll Get:
         
        Selected participants receive a free 1-year Studio or Classroom license Early access to new features and tools A direct voice in what we build next
        👉 Interested? Please fill out this quick form
        Your feedback helps us make Cura Cloud more powerful, more intuitive, and more aligned with how you actually print and manage your workflow.
        Thanks for being part of the community,

        — The Ultimaker Software Team
        • 0 replies
      • Cura 5.10 stable released!
        The full stable release of Cura 5.10 has arrived, and it brings support for the new Ultimaker S8, as well as new materials and profiles for previously supported UltiMaker printers. Additionally, you can now control your models in Cura using a 3D SpaceMouse and more!
          • Like
        • 18 replies
    ×
    ×
    • Create New...