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Stop printing via USB on UM2+


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Posted · Stop printing via USB on UM2+



I woyld like to know if it's possible to stop or pause a printing job by sending a request on USB with following conditions :

- the job is starting with embedded control panel

- the gcode file is on usb card and obtain classicaly by using Cura or other slicer 

- the usb request is sending by custom board (esp32......) and not by software like cura or octoprint running on pc or other raspberry 



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    Posted · Stop printing via USB on UM2+

    I start my prints from a console on my PC by sending M23 and M24.  That allows me to use M25 to pause a print.

    Doing that leaves the nozzle in contact with the print and will always leave a scar.  So I necessarily send a script to Pause the current print, move the Z up, and park the print head.  The previous XYZE locations must be figured out so they can be passed along when the print is resumed so they are correct when the gcode starts flowing again.  


    You might be able to send "M0" or "M1" (they are both Emergency Stop) to force a pause.  Depending on your firmware there may be other commands that can be used. Most pauses will result in the nozzle simply stopping right where it happens to be.

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