[3.5.0-b2 SBC mode] CNC issue :

MaxGyver

After updating to RRF 3.5.0-b2 from RRF 3.4.5 on my CNC-Lathe, I am getting this error messages when I want to start a .nc Jobfile. Depending on the jobfile the “illegal letter” number changes. Under RRF 3.4.5 I had no problem with this post processor.

-> Duet 3 6HC with attached SBC in CNC-Mode and RRF 3.5.0-b2-

	M32 "0:/gcodes/Test Job1.nc"
Error: Illegal parameter letter '1'

;TEST JOB1
G18 ; Select XZ plane for arc moves
G21 ; Set units to mm
G53 G0 X78.
G53 G0 Z260.
G90 ; Set absolute positioning

;DREHEN - PLANEN1
;CHANGE TO T3 ON REAR TOOL POST
T3
G54
M8
M3 S2600
G0 X23. Z0.
G0 Z1.814
X13.
G1 X9.414 F260.
X8. Z0.4
X-0.4
X1.014 Z1.814
G0 X13.
Z1.614
G1 X9.414 F260.
X8. Z0.2
X-0.4
X1.014 Z1.614
G0 X13.
Z1.414
G1 X9.414 F260.
X8. Z0.
X-0.4
X1.014 Z1.414
G0 X13.
Z1.214
G1 X9.414 F260.
X8. Z-0.2
X-0.4
X1.014 Z1.214
G0 X13.
Z1.014
G1 X9.414 F260.
X8. Z-0.4
X-0.4
X1.014 Z1.014
G0 X13.
Z0.914
G1 X9.414 F260.
X8. Z-0.5
X-0.4
X1.014 Z0.914
G0 X23.
Z0.

M9
M5
G53 G0 X78.
G53 G0 Z260.
 ; Set absolute positioning
M0

T3P3Tony

@MaxGyver Thanks for reporting this, hopefully @chrishamm will get a chance to look at it soon.

Initially i assumed the error was due to the number 1 in the print file name (can you try without that?) now I wonder if its to do with thisline;

X13.

CNC mode should handle further coordinates being sent without the G0/G1 command but that could also be the issue. please check.

Also i not you have M8 and M9 in your print file. I doubt this is the issue but do you have corresponding M8.g and M9.g files in your system directory?

chrishamm

@MaxGyver That's right, I could confirm this problem with your file. I am investigating.

PS: Fixed on GitHub.

MaxGyver

@T3P3Tony
Yea, that was my first thought as well
Yes, I have a M8.g and M9.g in my system directory.

@chrishamm
Wonderful, thank you so much for the swift response!
Are the updated binaries for the MB6HC already available, or do I have to wait for beta 3.5-b3 ?

Cheers
Max

T3P3Tony

@MaxGyver the binaries are not yet available.

chrishamm

@MaxGyver You can find updated DSF packages on our internal dev package feed (not documented, use dev instead of unstable) - however use at your own risk! To update, you probably need to reinstall the duetcontrolserver and duetruntime packages.