M117 Bad Command

mitch

Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.01-beta3 (2020-01-29b1)
Duet2 Ethernet

I have been getting errors in scripts randomly that use the M117 command. Some work. Some don't.

jens55

Try using double quotes around the message as in
M117 "purging material"

mitch

It is indeed in the simplify 3d Start script:

; Ender 5 Custom Start G-code

M80; Turn on Printer
M117 Pre-heating Bed
M140 S[bed0_temperature] ; Set Heat Bed temperature
M190 S[bed0_temperature] ; Wait for Heat Bed temperature
M117 Pre-heating extruder
M117 Heating extruder
M104 S[extruder0_temperature] ; Set Extruder temperature
G28 ; Home all axes
M117 Auto bed-leveling
G29 ; Auto bed-level (BL-Touch)
G92 E0 ; Reset Extruder
M109 S[extruder0_temperature] ; Wait for Extruder temperature

G1 Z1.0 F3000 ; move z up little to prevent scratching of surface
G1 X0.1 Y20 Z0.3 F5000.0 ; move to start-line position

M117 Purging Material
G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; draw 1st line
G1 X0.4 Y200.0 Z0.3 F5000.0 ; move to side a little
G1 X0.4 Y20 Z0.3 F1500.0 E30 ; draw 2nd line
G92 E0 ; reset extruder
G1 Z1.0 F1500 ; move z up little to prevent scratching of surface
M117 Printing

; End of custom start GCode

However, the "Purging Material" lines seems to be the only one that the Duet complains about. Several of the other M117 commands execute just fine.

jens55

Just for curiosity sake, put the quotation marks around it and see what happens.
I know it doesn't make sense but humour me, please !

mitch

Will do. I have a print still running for the rest of the day. I will try that as soon as this one completes.

The only thing I see that makes that line unique is the blank line before it??

jens55

Yes, I have noticed that as well. The reason I am asking you to run that line with quotes is because I had a similar issue where some M117 commands without quotes didn't work and then worked fine once quoted. According to DC42, both quoted and unquoted should work (and they do for you) but since I have seen the weirdness before, I think it is worthwhile testing it.

Phaedrux

I dunno what happened to me in my formative years, but having a string WITHOUT quotes makes me nervous.

dc42

@mitch, please can you post (either here or on a file sharing site such as Dropbox) a GCode file that demonstrates the problem, so that I can try to reproduce the problem and fix it.

I have already tested that your failing M117 line preceded by a blank line works for me.

mitch

@dc42

Will do. I am on travel so it may be a few days but happy to post a file with the issue when I return.

mitch

eyeball4_2 trunkcated.gcode

I truncated the file to meet the upload limit but here is the offending file. same error on that same M117 line every print.

I haven't tried with quotes. Pretty confident that would fix it. But I get that it should work both ways and you want to see why is causing the problem. Much appreciated.

thanks