Problem with m291

[schpongo]

Hey guys,
I'm having trouble using the m291 command.

My setup is a Duet 3 6HC + a Duet 3HC expansion shield and a RPI setup as a SBC.

I'd like to run the following macro, but when the message shows up and I click ok the code after the m291 command is not executed. The message then goes away but the printer says it's busy. The same happens when I click cancel.

if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed
	G28
G1 Z350 F4000

M291 P"The bed will home next. Remove all object from the bed!" R"Warning" S3
G1 Z 300
M98 P"homew.g"

[dc42]

There have been some fixes to M291+SBC in RRF/DSF 3.2beta. @chrishamm has the details.

[schpongo]

How does one go about updating the Duet 3 with a SBC to beta software? The getting started page does not mention anything about that.

[A Former User]

@schpongo said in Problem with m291:

How does one go about updating the Duet 3 with a SBC to beta software? The getting started page does not mention anything about that.

https://forum.duet3d.com/post/178813

[schpongo]

Thanks for the quick reply, before I do that, I would also like to know what I need to do to go back to the stable branches?

[A Former User]

same thing just replace unstable with stable on the first line.

(presumably you can skip line #4 but it won't hurt either)

[schpongo]

Thanks for the quick answer.

[chrishamm]

M291 did not work well before RRF 3.1 so I presume you're still on an old firmware/DSF version. Please update your Duet as described here: https://duet3d.dozuki.com/Wiki/SBC_Setup_for_Duet_3#Section_Connecting_via_SSH

@dc42 The M291 fixes from 3.2-b1 only affect PanelDue in SBC mode.

[schpongo]

@chrishamm Hmm.. I'm actually on 3.1.1. I did not yet do the update to the beta Version. Might there be something else that I'm doing wrong?

[schpongo]

I'm still on 3.1.1 and I'm still having issues with the the M291 command. Here is the macro I'm trying to run:

; ToDo check Temp of bed and nozzle, so both are cold
; Cancel any currently active mesh compensation 
M561
; Set z-probe trigger height to 0
G31 Z0
G1 X0 Y0 Z200 F6000 
M291 P"Move to point were the z probe shall be calibrated." X1 Y1 S2
M291 P"Get a 0.1 mm thick metal spacer" S2
while iterations <= 5
	G1 Z50
	M291 P"Remove the z probe sensor if it is already or still attached" S2
	G1 Z5
	M291 P"Move FFF nozzle down until it just grabs a 0.1 mm thick metal spacer and then remove it." Z1 S2
	G92 Z0.1
	G1 Z50
	M291 P"Attach the z probe" S2
	G30 S-1

M291 P"Now calculate the average of the test. The average is the z probe trigger height for that point. Set it the config.g with G31 Z{ave} " S2

After I click OK from the first M291 in line 7 the machine just stays busy and the second window does not open.