After update to 3.4.1 - M226 pause in GCODE is not working

omni

Hi guys,

Recently I updated from 3.1.1 to 3.4.1., and PanelDue V3 (7") to 3.4.1

Often I need to put M226 before a layer in GCODE to pause the print, so I can insert metal nuts or magnets into prints and then resume printing over them.

But unfortunately now the printer just continues printing after that line.

When I click on the pause on the PanelDue it pauses the print, but says - the printer is already in the pause state (eventhough it's still printing).

My pause.g is still from 3.1.1 - here it is :

; pause.g
; called when a print from SD card is paused
;
; generated by RepRapFirmware Configuration Tool v3.1.1 on Sun May 31 2020 19:03:43 GMT+0200 (Central European Summer Time)
M83 ; relative extruder moves
G1 E-10 F3600 ; retract 10mm of filament
G91 ; relative positioning
G1 Z5 F360 ; lift Z by 5mm
G90 ; absolute positioning
G1 X0 Y0 F6000 ; go to X=0 Y=0

If anyone has an idea how to solve it, please help.

Thanks

Phaedrux

Check out M600 instead

https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m600-filament-change-pause

omni

@phaedrux

Thanks for the answer!

I use the "Pause at height" postprocess script in Cura 5.0.1, and it defaults to M226 (don't see any way how to change it).

I can manually edit GCODE to replace M226 to M600, but M226 used to work great, and as far as I can see the only difference is that M600 prefers "filament-change.g" to "pause.g", if it exists?

Maybe I'm doing something wrong.... I switched to Cura relatively recently (from IdeaMaker), when Cura 5 came out, so I am using pause from cura for the first time actually....

Phaedrux

So you are saying that the print will pause, but the paneldue still shows that it is active, and instead of a resume button, you have a pause button on the panel?

omni

@phaedrux

The print does not pause, it continues printing past the M226 command.

But when I hit "pause" on PanelDue it does indeed pause the print, but gives me a message that the printer is already in the pause state.

I do have the resume button, and it works. The only problem is that I cannot pause it automatically via Gcode, only via the PanelDue.

Phaedrux

Can you share the gcode file being printed? Or at least a section of it that shows the M226

omni

@phaedrux

Of course, here is an example attached.

The M226 should happen before the Layer 22 starts printing.

ANTI Z-WOBBLE BOTTOM - V01.gcode

Phaedrux

The only change to M226 between 3.1.1 and 3.4.1 I can find is in 3.3

M25, M226 and M601 all accept a P0 parameter, which causes pause.g not to be run. M24 accepts a P0 parameter, which causes resume.g not to be run. Caution: in RRF 3.4 this is likely to be replaced by a P"filename" parameter.

Though that doesn't seem to be captured in the gcode wiki for those gcodes.

omni

@phaedrux
UPDATE :

Your suggestion of replacing M226 with M600 manually in gcode - actually worked!

The printer paused correctly, inserted the nuts and resumed the print....

Guess this is a workaround for now, until I figure out why M226 is not working.

Thanks again!