Jump to content
Ultimaker Community of 3D Printing Experts

Updated: Nozzle Dragging in Plastic


jnnewton
 Share

Recommended Posts

Posted (edited) · Updated: Nozzle Dragging in Plastic

I've had my UM2 for a while, but haven't really printed very much (maybe a dozen small objects).   I recently tried to print several items at once for a project I'm working on, and It went very badly.  The print time was 26hrs.  When I came back to check on it, 20+ hrs later, there was filament and printed parts everywhere, the bed was all the way up against the nozzle and the nozzle was still running around in the x and y, scratching / dragging on the bed glass (the bed was not stepping like it was trying to move up though.  Bed was still hot, no filiament was coming out of the extruder.

I then tried to print a shorter (10 min) print, and everything went fine.  So I chalked it up to a one off glitch / bug or g-code error.  I loaded up another long print (20+ hrs), and watched it run for about 30min before going about my day.  I checked it again about 3 hrs in, no problems, so I went to bed.  When I woke up, it had failed again, same manner, bed all the way up on the nozzle, but this time it was still extruding, and it was all up in the fans and just going everywhere.

Here's a picture of what it looks like when I come back to it:

http://postimg.org/image/pxozlkvz7/

Do we think this is a software or hardware issue?

How can I replicate it to verify?

Machine: UM2

Software: Cura 15.04 running on windows 8.1 (all updates to OS done).

Firmware: "default firmware"

Print settings:  quickprint "normal" with print support structure.

UPDATE: I have found out what causes the mess to start, although I don't know if it's the whole story. The nozzle is dragging in the previous layer, and at some point it will catch enough to pull the part off the glue / bed. I haven't been able to figure out how the plate gets back up to touching the nozzle though.

Edited by Guest
  • 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

      • Ultimaker showcase | April 2022 | 4pm CEST | 10am EDT
        I'm excited because I've personally produced this showcase event, so if you are curious what else I'm up to nowadays, come check it out and say hi in the chat! It would mean a lot! 
          • Thanks
          • Like
        • 4 replies
      • 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...