Jump to content
Ultimaker Community of 3D Printing Experts

Recommended Posts

Posted · UM3 RGB LED Functionality?

I saw a video from 2017 detailing the insertion of the M142 instruction into a G-code file to modify the Ultimaker 3 LED strips to any wanted RGBW colour. This seems to have been disabled since then. The RepRap wiki states that M150 should work for Marlin flavour (which I think the UM3 uses) but it doesn't seem to. 


I'm using a Cura-generated G-code file as boilerplate and the rest of the instructions are executed, just not the M142/150 instructions. 


Any ideas?

  • Link to post
    Share on other sites
    Posted · UM3 RGB LED Functionality?

    M142 gcode still works for me like mentioned in this post:




    note that the parameters are in lowercase (which is quite unusual for gcode)


    ...but it is well possible that devices with newer manufacturing dates are not equipped with rgb led-stripes anymore? 🤷‍♂️


    You can try to use the (official) API - the documentation is reachable from the printers home-page.



  • 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
    • Create New...