Jump to content
Ultimaker Community of 3D Printing Experts

Printer will not extrude using feeder

Recommended Posts


I recently purchased an Ultimaker 2 and unfortunately the nozzle became blocked during an overnight print. This resulted in a build-up of residue (carbonized plastic) in the nozzle. I tried cleaning the nozzle but was unable to get it sufficiently clean.

Instead I disassembled the hot-end and replaced it with the "Olsson block kit" (replaceable nozzle kit). During assembly, I watched this video:

I noticed that the Ultimaker in the video had no bent plate protecting the back of the printer head. Mine does, and I had to bend this to fit the heater and temp sensor cables without damaging them. See image: http://i.imgur.com/O2OMSn5.jpg

Now the hot-end heats up okay, and I can feed plastic through it manually if I remove the bowden tube, but I cannot get it to print using the feeder. It seems it takes a bit too much force to get the printer to move material through the nozzle, even if I change the pressure setting on the feeder, it cannot extrude any plastic.

Does anyone have suggestions on what steps to take?

Share this post

Link to post
Share on other sites
Nothing comes out?

It must block somewhere, probably at the entrance of the Teflon, did you make sure that the bowden is well entered in the Teflon?

When you help the feeder to push the filament does it help?

Thanks for your quick response!

Yes, you are correct. If I help the feeder by pushing (quite hard) I am able to push filament through! I also made sure the bowden went all the way in the teflon, so I do not think that this is the problem.

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

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 130 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 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!