Jump to content

Recommended Posts

Posted (edited) · BB 0.4 clog issues

About a year ago, the company I work for got a Ultimaker 3 (E), but until about a month ago it was used and maintained by the IT guy. He recently left and I was put in charge of it. I didn't have any issues until I tried to do PVA with the BB 0.4 core. Right away, the print head started making a noise and nothing extruded. I've tried hot pulls and cold pulls for hours, but this clog doesn't seem to budge. Now, I got some cleaning filament to extrude from it,  but it bubbles and stays on the nozzle. We've only ever used Ultimaker filament, but I'm not sure what material the old IT guy used with the BB 0.4. I got a new core ordered, but this is really grinding my gears.

 

Thanks, Ranch

 

 

IMG_0666.jpg

IMG_0667.jpg

Edited by ranchprinter
  • Link to post
    Share on other sites

    Posted · BB 0.4 clog issues

    Manually set the temperature hotter, and try another hot and cold pull.

    you can manually set the temp on the touch screen somewhere.


    someone may have put a hotter melt temp

    material in it.  What other materials have you been working with?

     

    you can’t break it more.

     

     

     

    also try poking up the nozzle with a .3 mm drill or pin.

    have had to do this on wood filament before.

    aliexpress sell needles just for this job the right size.

     

  • Link to post
    Share on other sites

    Posted · BB 0.4 clog issues

    The BB core can also clog with PVA.

    It is not very unusual for a core to clog. The deposits in the pressure nozzle turn into carbon over time.

    (Ashes to ashes, dust to dust, filament to coal)

     

    An acupuncture needle helps well. But generally , manual heating helps well .

    If the blockage is higher than the pressure nozzle, a cleaning is difficult. Cold and hot blocked are then not feasible.

    (Then I also use a brass rod M3 to press material.)

     

    Although personally I would just buy a new core.

    I think.
    I give $100 and get two hours of free time and the problem solves itself. Or I work on it for one and two hours and afterwards I am not sure if it would have been better to buy a new one.

    I'm not trashing the old Cores for this. One day I'll work on it 🙂

  • Link to post
    Share on other sites

    Posted · BB 0.4 clog issues

    EDM wire- funny that is exactly what I use. not too hard it will scratch or break, but strong enough for the job.

     

    I did not mention it, as most people would have no idea what you are talking about!

     

     

    • Like 1
    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...