G92 S0 not persisting

oracledude

Firmware Name: RepRapFirmware for Duet 2 Maestro
Firmware Electronics: Duet Maestro 1.0
Firmware Version: 2.03beta3 (2019-03-25b6)

I have a "Verify Z macro" that is very simple:
;*******
; Verify Z is set correctly
G28 ; Home
G0 Z0 ; Move to Z=0
;*******

I use a simple microswitch on the hotend as my z probe. Ran through https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe#Section_Calibrate_the_Z_probe_trigger_height and set G31 accordingly:

G31 P500 X0 Y0 Z10.792 ; Set Z probe trigger value, offset and trigger height

My Z value will not persist through homing or power cycles. It always seems to be 5mm above the bed.
I thought it was something in my config-override file, but it only contains PID info and the following three lines:

; Delta parameters
M665 L305.000:305.000:305.000 R162.000 H221.200 B135.0 X0.000 Y0.000 Z0.000
M666 X0.000 Y0.000 Z0.000 A0.00 B0.00

config.g
config-override.g
homedelta.g
bed.g

Phaedrux

So after running G32 you're still not able to make the nozzle touch the bed at Z0?

Does G28 for you run homedelta? You don't have anything in there that would find Z0 using the probe.

oracledude

G28 calls homedelta.g

g32 will run through its grid just fine. After a M500, G0 Z0 will move to the center point 5mm above the build plate.

Phaedrux

Have you been through this?

https://duet3d.dozuki.com/Wiki/Calibrating_a_delta_printer