running a duet wifi with a dc42 ir

LARRY

i also have a G28 error: insufficient axes homed for bed probing

Stephen6309

https://duet3d.dozuki.com/Wiki/FAQ#Section_I_get_this_error_message_Error_G0_G1_insufficient_axes_homed

thwe

What was the value of the comand "G30 S-1" at your configuration (so after set z to 0 with paper + move 5 down + send G30 S-1)?

(I don't believe that this value is exactly 3mm, because in this line "G31 P500 X0 Y-33 Z3 ; set threshold and offsets" you told this your printer )

dc42

Home X and Y before bed probing, to avoid that error message.
Depending on the bed surface you are using, it may be reasonable for the sensor to trigger when the bottom edge is 3.45mm above the bed. So try using that value of 1.16mm that you measured as the Z parameter in your G31 command.

HTH David

LARRY

@thwe

5:44:38 PMG30 S-1
Error: Z probe already triggered at start of probing move

I CAN CHANGE THE Z OFFSET ALL I WANT AND IT DOESN'T CHANGE THE PRINTER IS MY PROBLEM

LARRY

i changed ti here and still does the exact same thing the head is stopping about 1.16mm above the bed no matter what i do.

; Z probe
M558 P1 X0 Y0 Z1 H0 F200 T5000 R0 ; smart IR Z probe, used for homing Z axis only, dive height 3mm, probe speed 200mm/min, travel speed 4000mm/min, no recovery time
G31 P500 X152 Y-152 Z1.65 ; set threshold and offsets
; The following M557 commands are not needed if you are using a bed.g file to perform bed compensation
;*** Adjust the XY coordinates in the following M557 commands to suit your build and the position of the Z

LARRY

@dc42

ok sorry. what do i need to change in my g code to get rid of my error sorry im not very good at this

LARRY

@thwe

6:50:16 PMG30 S-1
Stopped at height 0.707 mm

LARRY

@thwe

6:52:05 PMG30 S-1
Error: Z probe was not triggered during probing move

thwe

Check your M558 if it is correct in your config.g -> H0 ???

I can only tell you how it works for me and it does it without any problems:

First I have homed my printer in all axes, where I have the endstops X min, Y min and Z max -> so my config.g = "M574 X1 Y1 Z2 U2 S1" (is built differently for you, so configured differently ). also i do NOT use my mini-ir as z endstop

Then I determined the distance with the procedure

drive the bed to center and Z about 10mm -> check indicator "probe" in the DWC (must be 0!)
manually move carefully in the direction of Z0 -> display "probe" in the dwc must indicate a value of about 465 when the nozzle come closer to the bed
drive further in the direction of Z0, the "probe" value must indicate about or over 535 (now your nozzle has only a little distance to the bed)
drive the bed back to approx. Z10
Send M558 P1
send G31 P500 Z1.0
manually push the printhead into the middle of the bed
manually approach Z0 with paper
set Z0 with G92 Z0
drive to bed position with G91 Z5
take the measurement with G30 S-1 (note: this value should be between 0.5 and 2.5!)
now send G31 P500 Zxxx (xxx= the value which is shown at the G30 S-1 command and write it in your config.g too!)
write the corect M558 in your config.g