Jump to content
Ultimaker Community of 3D Printing Experts
Tomty

Jam after prints have finished

Recommended Posts

I have recently begun to have a problem where when I come to print a model the filament gets jammed somewhere close to the nozzle. However this only happens when I have not changed the material after a print. When I come to start a new print nothing will come out of the nozzle and often will hear the clicking of the feeder stepper motor. I have no idea what's causing it as i have taken the whole print head assembly apart and made sure there's nothing obvious blocking and that the tube is fully inserted into the PTFE coupler. It never used to have this problem and it is getting irritating now as it seems to happen 90% of the time. Hope someone can shed some light on this irritating issue!

Many Thanks,

Tom

Share this post


Link to post
Share on other sites

Hi Tomty,

I've had exactly the same problem as you describe here.

But first thing to check is the hot end cooling fan on the back of the extruder, if this one is not working you'll have the same problem as you describe.

As you did, I'll always remove the filament after the print and then put it in an airtight bag that have some dehumidifier keeping the humidity around 17 %.

After a 12 hour print did finish when I was not around, the filament was stuck at the extruder.

Actually the feeder become glued, due to ricing heat during cooling down. I'll think this problem is causing more problem than most people are aware of, myself included here!

Have a look at this tread;

https://ultimaker.com/en/community/17794-detailed-documentation-of-our-hardware-and-software-mods-for-reliable-printing

Good look.

Thanks

Torgeir.

Share this post


Link to post
Share on other sites

Hi Torgeir,

I checked the fan today and that seems to be running fine with no issues. I did however do an atomic clean on the nozzle and found that the filament had a 'barb' on one side. I have since changed the PTFE coupler and the metal piece that goes with it. (I was going to change the hot end however I couldn't get the thermocouple out). It seems to be working fine now however I might buy the + conversion kit to get the extra features.

Thanks for your help!

Tom.

Share this post


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

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 24 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 18 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!