How to use M907? - General software discussion https://forum.prusa3d.com/forum/general-software-discussion/how-to-use-m907/ Prusa3D Forum Discussion Board en-US Fri, 15 May 2026 08:38:23 +0000 wpForo 60 How to use M907? https://forum.prusa3d.com/forum/general-software-discussion/how-to-use-m907/#post-710233 Tue, 07 May 2024 13:16:16 +0000 I currently have a screw extruder fitted to my MK3S, as I am doing tests with a more specialized material. The stepper motor used is already connected to a gearbox to increase the torque, as the resistance in the extruder would otherwise be too high due to the material. With higher volume flows/faster printing speeds, there are still stepper losses. As the motor can handle up to 1.68A, I would like to increase the current supply. However, the TMC2130 drivers installed can apparently only supply up to 1.2A.

My questions are:- What is the standard extruder motor current of the MK3S?- Can I use the M907 command in the start Gcode, for example?- How would I have to integrate the M907 command so that it increases the current to 1.1A, for example? (I have seen that you may need to convert the current to a value from 0-63)

]]> General software discussion Becker https://forum.prusa3d.com/forum/general-software-discussion/how-to-use-m907/#post-710233