Jump to content
UltiMaker Community of 3D Printing Experts

CuraEngine CLI Slicing Gives an "Empty" GCODE File


Recommended Posts

Posted · CuraEngine CLI Slicing Gives an "Empty" GCODE File

I'm trying to get a raspberry pi to slice stl files using CuraEngine through the command line. I've done this before in the past on a (much) older version of raspbian, and it may have been before they changed the structure of CuraEngine (something to do with the JSONs? I don't follow this closely, this is just from my recent research).


Anyway, the command I'm using is:


CuraEngine slice -v -p -j fdmprinter.def.json -j fdmextruder.def.json -s material_shrinkage_percentage=0 -s adhesion_extruder_nr=0 -o test.gcode -l /path/to/usb/test.stl


and this creates an output gcode file without spitting out any errors. The gcode file output, however, is clearly not correct. I suspect this is to do with the fact that the mins and maxes for the axes are weird numbers, but I don't know for certain. I will also mention that the two -s parameters I put in are necessary; the command errors out if I don't have those in there. I've tried with stl files on and off USBs, they aren't complex files (just a test cylinder) and these fdm jsons are the most recent as far as I know. I got them from the resources repo yesterday, and I was under the impression that those are the standard "let's get an example working" files.


Any help is appreciated and I'm happy to share any information necessary. I'm sure I forgot to mention something in here...

cura_forum_log.log test.gcode

  • Link to post
    Share on other sites

    Posted · CuraEngine CLI Slicing Gives an "Empty" GCODE File
    16 hours ago, Elkelthen said:

    I got them from the resources repo yesterday

    What resources repo exactly?


    The CuraEngine you are using seems to be version 4.8. You would need to use a version of fdmprinter.def.json and fdmextruder.def.json that matches this version.



  • Link to post
    Share on other sites

    Posted · CuraEngine CLI Slicing Gives an "Empty" GCODE File

    Worked like a charm, thanks so much!


    I had been following the same gist I followed for the old version at https://gist.github.com/BenRoe/f166e8b65fe62edda4427fd419059695


    but tried skipping all the manual build steps since I could just apt-get curaengine. Then I used the wget lines from the gist, which it turns out were very outdated but still download something.

  • Link to post
    Share on other sites

    Posted · CuraEngine CLI Slicing Gives an "Empty" GCODE File
    1 hour ago, Elkelthen said:

    Then I used the wget lines from the gist, which it turns out were very outdated but still download something.

    Actually, those links would have downloaded the correct versions of the files, if you would not have skipped all the manual build steps. But I am glad you got something working now. Just know that what you have working now is (apparently) >2 years old.

  • 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...