Jump to content
Ultimaker Community of 3D Printing Experts

Filament Change


Recommended Posts

Posted · Filament Change

I just got a new Ender 3 V2.  I am trying to do a filament change mid print in Cura. For some reason, after I go through adding the script and re-slicing, nothing gets added to the generated GCODE. 

If I do the same thing with the "pause at height" script, it gets added properly but it only pauses for a few seconds and then resumes the print before I get a change to change the filament. I can open up the gcode in a text editor and see the added changes.

I don't understand why trying to add the "filament change' script doesn't show any gcode changes at all?

  • Link to post
    Share on other sites

    Posted (edited) · Filament Change

    The filament change should be added.  It's only a single line of code.  Check that the layer you are asking to stop at is a "legal" layer and not above the top of the model.  Layers within the gcode file are Base0 and in the Cura preview they are Base1.  If you ask for a filament change at layer 10 then within the gcode the change will occur just before gcode Layer 9 prints.  Including Layer:0, Layer 9 is the 10th layer in the gcode file.  It would look like this:

     

    M600 E30.00 U300.00 X0.00 Y0.00 Z5.00 ; Generated by FilamentChange plugin
    ;LAYER:9

     

    All that being said, Creality made what I consider to be mistakes in the firmware.  M0, M1, and M117 send messages to the LCD and they either were not enabled in the firmware, or more likely, the TFT type LCD was configured incorrectly and won't accept messages from the commands and so are ignored by the printer (that's the "stops for a few seconds" problem as the printer did receive the M109 temperature command and takes 10 seconds to decide it's OK to continue).  M600 is not enabled on my Ender 3 Pro.  G2 and G3 are probably not enabled on your printer (maybe because of high memory overhead) and so the ArcWelder plugin will not work.

     

    In Pause At Height try using M25 instead of M0 and see if that works.

     

    If M25 does not work, then you will have to use a G4 S333 command in "Gcode after pause" (where the S parameter tells the printer how many seconds to pause for).

     

    Edited by GregValiant
  • 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

      • Ultimaker showcase | April 2022 | 4pm CEST | 10am EDT
        I'm excited because I've personally produced this showcase event, so if you are curious what else I'm up to nowadays, come check it out and say hi in the chat! It would mean a lot! 
          • Thanks
          • Like
        • 4 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
        • 11 replies
    ×
    ×
    • Create New...