Jump to content
UltiMaker Community of 3D Printing Experts

Multiextruder issues


NBl

Recommended Posts

Posted · Multiextruder issues

Hello

I've been having some weird efects when using Cura 3.6 with my two extruders printer. I've two extruders but only one hotend, so currently I'm using only one of them at a time.

- First issue was when I was trying to print wit extruder 2 (Ext2) and 2.85mm filament. I don't know why, Cura introduced a long and very fast retraction just before printing the first layer. It started in 6 mm retraction at 100 mm/s and after some slicings the retraction growed to 18 mm. I have no starting gcode for any extruder.

 

  • Link to post
    Share on other sites

    Posted · Multiextruder issues

    (Posted before ending the message, sorry)

    I had to manual edit and comment or delete the wrong gcode retraction line. I fixed it uninstalling, clearing profiles and installing again. I found no other solution.

    - Now, the Slicer has starting to activate the wrong layer fan. I choose Ext1, checked all the config and after generating gcode i've found that Cura is trying to start layer fan 2. I've only one fan and Ext2 is disabled. 

    Why could be happening this issues? What should I check to avoid this unexpected effects?

    I've starting to think that there's some kind of bug in multiextruder handling

    Thank you

  • Link to post
    Share on other sites

    Posted · Multiextruder issues

    That's probably because your firmware. Cura assumes that all commands it sends are for the active extruder. Some firmware has the (default) option enabled that when no extruder is specified with the command that it sees it at "do it for all extruders"

  • Link to post
    Share on other sites

    Posted · Multiextruder issues

    Thanks, but I think that this is not the case.  The gcode generated activates the right tool, but the M106 order is M106 P1 instead of M106 P0 (I should have refered to them as Ext0 and Ext1 instead of Ext1 and Ext2, 0 and 1 is how they´re named in Marlin). Both extruders use the same hotend and the same layer fan. I've config Marlin with "singlenozzle" option, as they both were part of a Cyclops extruder, but I currently use them separately with different filament diameter (Ext0 1.75 Ext1 3.00 mm). I know that this is not a common printer config, but I would like to know how to config Cura to swap between them without having to check and edit manually the GCODE to make sure everything is right each time I generate it.

     

    Thank you.

      

  • 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 5.3 stable released
        In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
          • Thanks
          • Like
        • 22 replies
      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 18 replies
      • UltiMaker Cura Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 22 replies
    ×
    ×
    • Create New...