Jump to content
Ultimaker Community of 3D Printing Experts

[UMO+\E3DV6] Extruder calibration lead to underextrusion


Catlord
 Share

Recommended Posts

Posted (edited) · [UMO+\E3DV6] Extruder calibration lead to underextrusion

Hi,

 

I'm trying to calibrate my UMO+ to make her print XT CF20 filament perfectly.

 

I use a hollow cube (20 mm square, one shell, no roof) to calibrate the extruder.

my nozzle is a .4 xtra nozzle from E3D

 

filament is measured at 2.94mm diameter.

 

With a %flow of 90% I have wall thickness measured at .66mm (with digital caliper)

 

I have to lower it down to 70% to have 0.45mm wall thickness but then I clearly have a problem of underextrusion  😕 see attached picture.

Do you have any idea ? 

 

 

 

20190815_123837.jpg

Edited by Catlord
Adding picture
  • Link to post
    Share on other sites

    Posted · [UMO+\E3DV6] Extruder calibration lead to underextrusion

    What layer thickness are you printing this with? From what I have read elsewhere, using a single wall to calibrate flow rate is not a good measure.

     

    To check for proper calibration, print a calibration cube with infill and measure the resulting cube.

     

    AFAIK, to check for proper flow and bonding with a single wall, you want to focus on the finish of the surface and layer bond strength of a spiralized cylinder. 

    • Like 1
    Link to post
    Share on other sites

    Posted · [UMO+\E3DV6] Extruder calibration lead to underextrusion

    Cube print (and better the calibration cross ) allow to set up the step/mm.

    also the calibration cross allow you to see if there in an horizontal expansion parameter you can play with.

     

    I'm taking note about the spiralysed cylinder, do you have any reference about it please ? 

     

  • 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

      • 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...