Can't turn off input shaping

Arkadiusz

I wanted to try input shaping on my printer but I cant get it to work. I tried everything and at this point im just giving up.

However I can't turn the damn thing off !!!

I uninstalled plugin and deleted accelerometer files
set it to "none"
checked macros and all the files for M593
Reinstaled firmware and tried older versions
Reinstalled Cura, tried prusa slicer

When my printer runs it makes very jittery arc movements and printer seems to ignore jerk and acceleration settings, I got it set to 1mm/min and it still moves very rapidly. Travel jerk is so strong makes motors skip steps.

When I send M593 console says that "Input shaping is disabled, yet its still on.

Orginal Duet accelerometer
Duet2 Ethernet board, it says W40603 on a sticker.
Firmware version: 3.6.0-rc.3
Gcode: config(1).g

droftarts

@Arkadiusz said in Can't turn off input shaping:

When my printer runs it makes very jittery arc movements and printer seems to ignore jerk and acceleration settings, I got it set to 1mm/min and it still moves very rapidly. Travel jerk is so strong makes motors skip steps.

I don't think that relates to input shaping. Assuming this is happening during a print, it sounds more like the slicer is emitting Gcodes for speed, acceleration and jerk, and overriding what you're setting in config.g. Check the Gcode for M201, M203, M204 and M566 commands, usually near the beginning.

You won't get good arc movement with low jerk settings, though. Usually something in the 5 to 15mm/s gives smooth arcs.

Ian

Arkadiusz

@droftarts

YES THATS IT !

It was jerk value in my gcode being too low. I must have gone down acceleration rabit hole when dealing with IS. This was driving me crazy, I wish I asked for help earlier.

I might try input shaping again, Thanks !