Jump to content

UM3 Filament Jam (PLA)


Recommended Posts

Posted · UM3 Filament Jam (PLA)

This isn't so much as a question as it is sharing our process of our debugging and getting filament to extrude again on an Ultimaker 3.

After a failed 6 hour dual-extrusion print, printer core #1 stopped extruding. Here's our process of what we did to make it work again:

1) Load material #1 (didn't work)

2) Unload material #1 (still didn't work)

3) Removed the plastic tube going to printer core #1

4) Set printer core #1 temperature to 230 deg C

5) Pulled out the filament (gently)

6) Unloading material #1 (still didn't work)

7) Unloading material #1 while pulling the filament out of the motor area

The filament that was pulled out was significantly eroded where the drive wheel was trying to push it. The first tries at unloading and loading no longer worked because of this.

After this, we made the mistake of loading the filament when it is spinning faster. This meant that the distance was not enough to go to the print core. So when we did this process again, the filament went rushing into the print core.

We then unloaded the filament, and made sure to load it when the motor was spinning slower. For some reason, loading filament is a really cumbersome process (or so we found).

With printer core #1 working, we ran a test print and found #2 was now not working. So the unloading process was repeated with #2, and we found a similar (but less extreme) case as #1, where the filament was worn down where the drive wheel must have been trying to move it.

Two fixes we are making for retrying the print:

- Not mounting filament spool #1 on the back - it's now on a separate spool holder

- Extruder temperatures up to 220 deg C

We'll see how it goes and if there's another fail. Hope this feedback / process is helpful to any UM3 newbies out there.

  • 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...