M291 S3 in homez.g results in error messages

fcwilt

@mikeabuilder said in M291 S3 in homez.g results in error messages:

I added an M291 S3 (blocking, wait for response) in my homez.g so the user can ensure there is metal under the z-probe before proceeding. I tested this new homez.g as a macro and it worked without obvious errors. When I put the file in the sys folder and use the HOME Z button on the web interface, I get two error messages - One says M28 failed, the other says M292 failed.

Are you issuing the M292?

I have a blocking M291 in several places (but not in any homing code) and they all work fine.

Frederick

elbgrd

I can confirm I'm getting this same behavior. The homez.g file is really simple. I'm running RepRapFirmware for Duet 3 Mini 5+ version 3.3 (2021-06-15 21:46:11) running on Duet 3 Mini5plus WiFi (standalone mode).

; homez.g

M291 P"Click OK when touch probe is ready to home Z" R"Home Z" S3 X1Y1
G90      ; absolute coordinates
G30      ; probe z

My Z probe is setup like this in config.g:

M558 K0 P5 C"^!io4.in" H5 F100 T6000     ; set Z probe 0 to digital switch type, invert and enable pullup resistor
G31 P900 X0 Y0 Z0.5                      ; set Z probe trigger value, offset and trigger height

After pressing HOME Z on the web interface, the G30 command executes and probes my metal touch probe properly and HOME Z turns blue. After it turns blue, two messages pop up with

M292
Error: Homing failed

and

G28 Z
Error: Homing failed

Phaedrux

@elbgrd said in M291 S3 in homez.g results in error messages:

K0

If you only have a single probe, delete the K0 part of your M558 and try again.

elbgrd

@phaedrux

Deleted, rebooted, and still get the error messages.

elbgrd

@phaedrux Any other ideas?

Phaedrux

Under investigation as a possible bug.

dc42

@mikeabuilder and @elbgrd , please specify whether you are running in standalone mode or SBC mode, because that might make a difference. @mikeabuilder, please also tell us what firmware version you are using.

elbgrd

@dc42 Standalone mode.

benecito

@dc42
I have the exact same problem running a 3 mini on 3.3 in SBC mode.

benecito

Any updates on this?

Phaedrux

@benecito Not as of yet.

benecito

@phaedrux But from the above I take it is not supposed to be like that? So I can expect a future update to fix this? Or do I need to look for another way to work my way trough homing?

Phaedrux

@benecito In the meantime you may need to seek a workaround yes, but hopefully not forever.

mikeabuilder

@dc42 - So sorry for starting this thread then going silent. I thought I had it set to email me when there were replies (newbie error).

I'm running a Duet2 clone board and have the RR3.3 firmware running. I'm not near the machine now so I can't look for a more detailed version number, but I downloaded mine at the end of June.

My homez.g is attached and you'll see I don't have an M292 in it, just the M291. homez.g Apologies fr the extraneous comment lines at the end. They are a leftover from the file when I inherited it.

And I'm running standalone. And I've tried this with web control and also PanelDue. I get the error messages on both.