Jump to content
Ultimaker Community of 3D Printing Experts

bad bowden tube fitment led to blockage at extruder


graeme_robinson
 Share

Recommended Posts

Posted · bad bowden tube fitment led to blockage at extruder

Thought I would share a problem I encountered and solved.

Photos here: http://tinyurl.com/ks2zljk

Last week I got too ambitious with the Tune/Flow control on my new Ulticontroller and forced the bowden tube retention end loose at the stepper motor. I was able to print a fix for this issue

(http://www.thingiverse.com/thing:40544) which seemed to work really well.

However fitting the fix required me to remove the bowden tube from the print head end (perhaps not 'required' but I found it easiest to do so), and I clearly replaced it incompletely, with the tube not fully inserted in the insulator.

That's not surprising as the tube doesn't run straight down when inserted - complete disassembly of the metal print head from the plywood frame part is needed for a snug fit and I recommend you do that if you ever need to remove the bowden tube from the print head end to avoid this pooling PLA/ABS problem - its a real showstopper!!

The lesson here for me is I need to be extremely careful when modifying flow rate and temperature! Thanks and I hope someone finds this useful. Hopefully I have posted in the right location. Comments and further tips appreciated.

 

  • Link to post
    Share on other sites

    Posted · bad bowden tube fitment led to blockage at extruder

    If you have a v2 hot end, there are openings in the housing which allow you to guide the bowdentube, so you can push it fully down in the teflon insulator. I always do that, pull it up again to insert the horse shoe, and then push it down again so it is always under pressure, and fully down. Doing a complete rebuild is probably also effective, but this is a bit faster i think.

     

  • 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
     Share

    • Our picks

      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 11 replies
    ×
    ×
    • Create New...