Prusaslicer time estimate with a custom DuetWifi CoreXY printer  

Prusaslicer time estimate with a custom DuetWifi CoreXY printer

I have a custom duetwifi-based CoreXY and I use PrusaSlicer for gcode generation.

The problem is that the slicer time estimatation is too optimistic - by about 20%. This is after I matched the speed/accel/jerk parameters in the printer and the slicer.

Below you can find additional information on my setup.

Thanks!

More info on my setup:

Example estimate error (click to see full):

Slicer configs (click to see full):

:

The speed control part of the printer config.g

; Drives
M569 P0 S0                                         ; physical drive 0 goes backwards
M569 P1 S0                                         ; physical drive 1 goes backwards
M569 P2 S0                                         ; physical drive 2 goes backwards
M569 P3 S0                                         ; physical drive 3 goes backwards
M584 X0 Y1 Z2 E3                                   ; set drive mapping
M350 X16 Y16 Z16 E16 I1                            ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E415.00                  ; set steps per mm
M566 X350.00 Y350.00 Z50.00 E120.00                ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z1000.00 E10000.00          ; set maximum speeds (mm/min)
;M201 X3000.00 Y3000.00 Z75.00 E10000.00           ; set accelerations (mm/s^2)
M201 X1500.00 Y1500.00 Z75.00 E10000.00            ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z800 E800 I30                     ; set motor currents (mA) and motor idle factor in per cent
M84 S30