Jump to content

Recommended Posts

Posted · Ultimaker 3 BB core problem solved here is how

Hiya all,

not long ago I posted about the BB core being a pain and failing to extrude properly.

well here is the reason why:

some how the PVA lined the hot end and narrowed it it by about 2mm. when the problem started I had done a few hot and cold pulls to resolve the issue. on the 3 or 4th time, with a few failed prints in between, it came out. during the hot and cold pulls it wasn't apparent that this was the case. however you can see in the pictures the issue at hand. it is now printing fine but am a bit miffed that at least half of the 350gr got wasted due to this.

hope this will help any one that is having the same problem.

basically this is how it came out: during the hot pull, I extruded by hand a length of PLA then with a bit of force I yanked it out. It didn't come out with the cold pull. having said that obviously the process at this point I wasn't at the cold pull stage any way but I am referring to previous attempts .

regards

Rebekah Anderson

5a333f4330bf8_filamentblockage2.thumb.jpg.a48db965b5a96cbe022161e1f298481b.jpg

5a333f4370cda_filamentblockage.thumb.jpg.20836345ad60ad778d4316a87552dd35.jpg

5a333f4330bf8_filamentblockage2.thumb.jpg.a48db965b5a96cbe022161e1f298481b.jpg

5a333f4370cda_filamentblockage.thumb.jpg.20836345ad60ad778d4316a87552dd35.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

      • UltiMaker Cura 5.9 stable released!
        Here comes Cura 5.9 and in this stable release we have lots of material and printer profiles for UltiMaker printers, including the newly released Sketch Sprint. Additionally, scarf seams have been introduced alongside even more print settings and improvements.  Check out the rest of this article to find out the details on all of that and more
          • Like
        • 5 replies
      • 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
          • Heart
          • Thanks
          • Like
        • 4 replies
    ×
    ×
    • Create New...