M112 Actions?



  • What does the M112 emergency stop do? Does it actively stop steppers in a controlled manner in accordance with the acceleration and instant speed config settings or does it just kill the current and let the motors freewheel to a stop?

    I'd always argued that the duet would likely be able to stop the motors quicker in a controlled manner than just killing the power and letting the motors freewheel. If M112 just kills the drivers then there is little difference.

    Still no Health and Safety topic catagory?



  • Maybe this helps you
    https://github.com/dc42/RepRapFirmware/blob/2a8a8e45d9617eaaaf3b1ffe81e230026819c890/src/RepRap.cpp#L519

    looks like it just stops the move in progress, and disables the drivers. apart from belt driven z-axis I haven't noticed any tendency for any pritner to freewheel or coast.


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