Manual tool change problem in 1.5.5

gSender šŸ› Bug
1

Hi,

I struggle a bit with getting the manual tool change to work in gSender 1.5.5. I use a Genmitsu 3020 Pro Max V2 CNC machine. gSender is installed on a Windows 10 laptop (fully patched). Connection is over USB.
Usually, my CNC jobs run just fine with gSender. Now, I started out with my first job that uses more than one tool. The gcode is generated by ESTLCAM, I tweaked the post processor to use a M0 instead of M6 as my machineā€™s GRBL does not understand M6.
No matter what I set in the Tool Change options (even ā€œIgnoreā€), the CNC stops and I get the following error message, when the pause for the tool change is going to happen:

invalidline
invalidline472Ɨ193 10.8 KB

This is the console output:

[...]
ok
G02 X-4.7500 Y-8.2272 I-9.5000 J0.0000
ok
G02 Y8.2272 I4.7500 J8.2272
ok
G02 X9.5000 Y0.0000 I4.7500 J-8.2272
ok
G02 X8.0000 Y-1.5000 Z-9.6250 I-1.5000 J0.0000
ok
G00 Z5.0000
M05
feeder
G4 P0.5
ok
ok
ok
ok
ok
ok
ok
ok
ok
error:1 (Expected command letter)

If I resume, it simply continues with the job, even if I have enabled one of the wizards for tool changing.
If I remember right, I only saw the wizard once after resuming.

This is the gcode at the position where the tool change is going to happen:

[...]
G02 X-4.7500 Y-8.2272 I-9.5000 J0.0000
G02 Y8.2272 I4.7500 J8.2272
G02 X9.5000 Y0.0000 I4.7500 J-8.2272
G02 X8.0000 Y-1.5000 Z-9.6250 I-1.5000 J0.0000
G00 Z5.0000

(No. 2 Chamfer: Helical drill 1)
M05
M00
M03 S10000
G00 X11.5000 Y0.0000 Z5.0000
G00 Z-0.5000
G02 X-5.7500 Y-9.9593 Z-0.8333 I-11.5000 J0.0000 F300
G02 Y9.9593 Z-1.1667 I5.7500 J9.9593
G02 X11.5000 Y0.0000 Z-1.5000 I5.7500 J-9.9593
G02 X0.0000 Y-11.5000 Z-1.7500 I-11.5000 J0.0000
G02 X-11.5000 Y0.0000 Z-2.0000 I0.0000 J11.5000
G02 X5.7500 Y9.9593 I11.5000 J0.0000
G02 Y-9.9593 I-5.7500 J-9.9593
G02 X-11.5000 Y0.0000 I-5.7500 J9.9593
G00 Z5.0000
G00 X0.0000


M05
M30

(Sorry, I cannot upload the full gcode file as new user).

I tried sending this gcode with UGS without any problem, meaning it correctly pauses the job (HOLD) and can continue after tool changing.

I am not quite sure if this is really a bug or if I missed something crucial hereā€¦

I know that I can simply put the chamfering in a separate gcode, so no tool change logic is involved. This works as well but getting tool change to work would simply be a bit more convenient :wink:

Thanks a lot for any support in this matter, Ben

2

You might consider making each tool path its own file so when you change tools, you load the next file.

3

use fusion 360

install this plugin: GitHub - TimPaterson/Fusion360-Batch-Post: Fusion add-in to post all CAM setups at once, optionally dividing them into folders. Also fixes some of the limitations of Fusion for Personal Use, such as allowing tool changes.

program everything and use the plugin to postprocess

make sure you have a fixed tool setter

done