pronterface doesn't work on ubuntu? (Command not found) - General software discussion https://forum.prusa3d.com/forum/general-software-discussion/pronterface-doesnt-work-on-ubuntu-command-not-found/ Prusa3D Forum Discussion Board en-US Tue, 09 Jun 2026 08:15:22 +0000 wpForo 60 pronterface doesn't work on ubuntu? (Command not found) https://forum.prusa3d.com/forum/general-software-discussion/pronterface-doesnt-work-on-ubuntu-command-not-found/#post-709115 Thu, 25 Apr 2024 23:16:00 +0000 Pronterface used to come pundled with prusa-slicer, but no longer does.  I need it to send commands and receive results to calibrate my extruder.  If I install ponterface and connect to my MK3S, it connects fine.  However, when I try to type in a command it sits there for a while and then says "Command not found".  I suspect this has something to do with the python connection, but don't have a clue how to diagnose/fix it.  ponterface itself is invoked via python3; I thought it might be trying to use "python" instead of "python3" as a command, so added a symlink for python->python3 but that didn't affect anything.  What's the necessary magic?

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