Jump to content

Recommended Posts

Posted · Custom purge towers in Cura

So, purge towers. They love to break. Every time I've done a tall print, the tower always fails, making the part extremely ugly and introducing a looooot of post processing time. I have tried to make the tower diameter thicker, increase the minimum volume, etc. At this point, I do plenty of prints without the tower but I would still like to have one.

 

Has anyone figured out a way to make a custom prime tower in Cura? Currently my approach is just importing 2 stl's of my own towers (one for each material) and then importing my actual part. Non-uniform scaling allows me to adjust the z-height of the towers to the height of the part.

 

However, I just can't figure out the order in which different objects are printed in the same layer. The ideal order would be model tower, model parts of the thing I'm printing, support tower, support parts of the thing I'm printing. Is there really even a way to do this? I'd appreciate any help 🙂

 

 

  • Link to post
    Share on other sites

    • 1 month later...
    Posted · Custom purge towers in Cura

    I try to avoid tall prime towers for the same reason.

     

    I have tried:

    1) reorienting the part so the prime tower does not have to be so tall.

    2) widening the tower so the base has more strength (maybe 40mm diameter),

    3) I always add a brim to the prime tower for better adhesion in the "dual extrusion" settings

    3) and finally I would try slowing down "prime tower speed" in the speed settings to 20mm/s or less for both extruders to minimize the lateral force.

     

    Best of luck to you!

  • Link to post
    Share on other sites

    Posted · Custom purge towers in Cura

    Maybe you could switch off prime towers in the slicer, and make your own in CAD, as part of your design? Then you can make them exactly as you want?

     

    Similar to the way I make my "dummy cooling towers" in CAD, to move the nozzle away from small objects, so they get more cooling time.

     

    The green cube here is a dummy cooling tower, otherwise the top area of the yellow part would not print well, it would deform because the heat can not escape. These models are quite small: for reference, text caps height is only 3.5mm, and text legs are 0.5mm wide. The dummy cooling tower has a custom brim, also designed in CAD, and a hollow area at the bottom where no cooling is needed.

    ostrcp_key_v20_zoom.thumb.jpg.c85991865979ff09557a37d9ca6ad20f.jpg

  • 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...