Jump to content
Ultimaker Community of 3D Printing Experts

Bad extruding (Tiny line - normal line)


Hyperion
 Share

Recommended Posts

Posted · Bad extruding (Tiny line - normal line)

Printer: Ultimaker 2

Trying to print, but on the first layer it can be seen that line is changing from thick to thin.

I can't understand why this is happening. Changed: feeder, firmware, extruder, filament tube.

what else can be the problem?

7f95c07a5c05cd26d6a4724e2c5df614.jpeg

e6eb0c45f6094455da8208eb8d9f2cc2.jpeg

  • Link to post
    Share on other sites

    Posted · Bad extruding (Tiny line - normal line)

    It's probably slipping in the feeder. The feeder is pretty powerful - about 5kg of force normally. So for it to slip implies very heavy friction in the bowden or pressure in the head.

    I recommend installing the IRobertI feeder only if it helps you feel the pressure and feed by hand so you have an idea of the forces and the friction. But this is not the fastest way to fix it.

    It could be your problem is that the filament is 3mm filament instead of 2.85mm. 3mm filament will get stuck in the tube.

    More likely you are just printing too cold and too fast. By default the bottom layer is much thicker - .3mm - so you have to print it hotter and/or slower. For bottom layer here is max print speeds for each temp. Just try increasing the temp in the TUNE menu to 240C and cutting the speed in half. Just for the bottom layer.

    Max recommended speeds for a given temp when layer height is .3mm:

    14mm/sec at 200C

    20mm/sec at 210C

    27mm/sec at 225C

    33mm/sec at 240C

  • 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...