Jump to content

Updated: Nozzle Dragging in Plastic


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:


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
    • Our picks

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    • Create New...