Basic Information:
Printer Model: DIY
MCU / Printerboard: SKR v1.3
Host / SBC: Pi 3B+
klippy.log
Describe your issue:
Changing input shaping parameters while printing either directly with a command like
SET_INPUT_SHAPER SHAPER_TYPE=MZV SHAPER_FREQ_X=0.1 SHAPER_FREQ_Y=0.1
inside the gcode or setting a tower that alters the shaping params with a command line
TUNING_TOWER COMMAND=SET_INPUT_SHAPER PARAMETER=SHAPER_FREQ_X START=0 FACTOR=0.005 BAND=5
before the print starts or in a header will cause the mcu to error out on subsequent G1 commands. see attached klippy.log for the traceback.
However, a workaround exists for the first case (not the tower). By adding a dummy G0 move after a SET_INPUT_SHAPER inside gcode, it avoids the error. So it seems to be an interaction between changing shaper values just before a command that involves extrusion (G1).
klippy.log (3.0 MB)