Jump to content
Ultimaker Community of 3D Printing Experts

Filament not extruding.


Lukephos
 Share

Recommended Posts

Posted · Filament not extruding.

This somewhat continues from my last topic about trying to print with a stainless steel nozzle where it would immediately curl up around the tip and I couldn't finish a first layer.

Now after looking about more for advice with similar things I figured I'd try the atomic method in case the tip was just gunked up and making it extrude funny. Every time I tried to pull it would snap the tip inside, so I took the tip out and looked inside the heatblock. It was full of filament, so I heated it up with the nozzle out and pushed the crap through. Going back to the regular atomic method it snapped at the tip (I really don't know if it's just me doing it wrong or what.) Either way it seems clean enough and it hasn't been used much anyway. I try printing, and almost nothing comes out. I can move the filament easily in the advanced options, but printing moves very little. I have no idea what it could be, other than mabye the feeder grinding the filament. I have no idea what to do about that though, please help.

  • Link to post
    Share on other sites

    Posted · Filament not extruding.

    First, I would make sure the filament is grinding or not. Then I would pull a 'clean set' of filament so that you no longer have any grind divots in the filament. Basically that means that you should pull the bowden tube out of the print head, release pressure off the feeder and pull it through until it is a clean area. Yes, you will lose the length of the bowden tube of filament, but I have found every now and then, the grindings create a weak spot that can bend and catch in the head block area.

    Keep in mind that I am not sure if it is the head block as I have the UM3 and only used to the print cores. But it is in that same area that it can create an issue.

    If you are doing cold pulls and it is snapping, I would think that you are letting it get too cool. Maybe the steel print core dissipates the heat quicker?

    And, possibly, you need to increase the tension in the feeder, or increase the temp of the filament or maybe the flow pressure.

    Try one thing at a time though so you know what changes will make a difference.

    Just a lot of guesses I would start with in no particular order.

  • 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

      • The Ultimaker Showcase — October 14. What's new?
        Your dear friends at Ultimaker have some exciting news and insights for you!
         
        • 0 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
        • 8 replies
    ×
    ×
    • Create New...