Duet dementia

droftarts

@Ethelred Because you have M501 at the end of your config.g, it's loading config-override.g:

; config-override.g file generated in response to M500 at 2024-02-17 17:01
; This is a system-generated file - do not edit
; Delta parameters
M665 L381.533:381.533:381.533 R214.834 H274.650 B140.0 X0.377 Y0.115 Z279.000
M666 X0.760 Y-0.369 Z-0.391 A0.00 B0.00
; Heater model parameters
M307 H0 R0.152 K0.097:0.000 D50.63 E1.35 S1.00 B0
M307 H1 R2.560 K0.469:0.016 D5.82 E1.35 S1.00 B0 V23.6
; Z probe parameters
G31 K0 P500 X0.0 Y-20.3 Z2.95
; Workplace coordinates
G10 L2 P1 X0.00 Y0.00 Z0.00
G10 L2 P2 X0.00 Y0.00 Z0.00
G10 L2 P3 X0.00 Y0.00 Z0.00
G10 L2 P4 X0.00 Y0.00 Z0.00
G10 L2 P5 X0.00 Y0.00 Z0.00
G10 L2 P6 X0.00 Y0.00 Z0.00
G10 L2 P7 X0.00 Y0.00 Z0.00
G10 L2 P8 X0.00 Y0.00 Z0.00
G10 L2 P9 X0.00 Y0.00 Z0.00

I think this bit must be causing problems:
M665 ... Z279.000

That's just wrong! It should be around zero, like the X and Y. Maybe calibration went wrong, and it's saved that. Try setting it to Z0, and/or redo the delta calibration and save it with M500, and see if it behaves after that.

Ian

Ethelred

Not so - M665H is the homing height distance from the bed in the case of a Delta printer.
Does no one think it just might be the Duet electronics? Are you monitoring this Mr. Crocker?

droftarts

@Ethelred I didn't say M665 H, I said Z! M665 Z is

Znnn Z tower position correction

See https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m665-set-delta-configuration

Definitely wrong!

Ian