Jump to content

Gcode question: what is "A" parameter in move command


Recommended Posts

Posted · Gcode question: what is "A" parameter in move command

Hi there,


I am tweaking some printer initialization gcode and noticed move commands such as "G1 X5 A13 F2400" in gcode files. I've looked high and low and cant find a description of what the "A" parameter is. Testing tells me that filament is extruded when executing the move. How might this be different than the normal "E" extrusion parameter? I did find references in CNC gcode documentation to A, B and C axes but I don't think that's applicable here.


Thanks for any help you can provide.



  • Link to post
    Share on other sites

    Posted · Gcode question: what is "A" parameter in move command

    Hi, that A parameter is specific to the MACH3 gcode flavour. It replaces the E parameter that almost all other printers use to specify extrusion distance.

  • 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 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
        • 7 replies
      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
        • 0 replies
    • Create New...