Fusion360 G-code broke bit :(

Software
1

I used Fusion360 to generate the G-code for my part and imported it into Easel. There were 4 tool paths. The first path drilled 4 holes and worked correctly. The second path was meant to carve out a face representing some text. This path did not start the spindle rotating so broke the drill bit before I could get to the cancel button. From my novice look at the g-code I’m guessing there’s a missing S command.

Does that mean I did something wrong generating my tool paths or is there a bug in the Carvey post processor plugin for Fusion360? In Fusion360 the spindle speed for the face tool path is showing as 10000rpm.

G90G94

G17
G21

(TOOL/MILL,1.587,0,4.762,1.571)
(STOCK/BLOCK,200,180,3,0, 0, 0)
M9
T1M6
S10000M3
G54
M8
G0X174.667Y132
Z15
Z5
G1Z-3F762
G0Z5
Y48
G1Z-3F762
G0Z5
X25.333
G1Z-3F762
G0Z5
Y132
G1Z-3F762
G0Z5
Z15
M5

(TOOL/MILL,1.587,0,4.762,0)
(STOCK/BLOCK,200,180,3,0, 0, 0)
M9
X130.849Y145.501
Z5
G1Z0.159F381
X130.828Z0.079

There is more g-code but I think this is roundabout where the bit broke.

3

Is there an option to stop Fusion 360 from adding the tool codes? I’ve been experiencing problems with the M6 command in Universal Gcode Sender.

4

you would have to make a custom post processor to eliminate M6

you have to designate a tool in the gcode for most machines

you could always edit the gcode manually

6

There is a editor in fusion or you can use notepad++ to remove the T1M6 is a unsupported tool change operation and can be removed.

8

Thanks, didn’t know if I had some options enabled that I shouldn’t have. I’ve been testing bCNC and so far it doesn’t complain about the T4M6 command. But I’m not sure I like the interface over UGS.

Why didn’t I think of that?

9

@RobertHoward

You can try this to see if it fixes the problem.

NOTE: I don’t have Fustion 360 and this is totally untested.

carvey_no_tool_change.cps (18.7 KB)
xcarve_no_tool_change.cps (18.7 KB)

1 Like
10

Thank you. It looks like the xcarve_no_tool_change.cps will work. I didn’t open the file in UGS, but a diff of the gcode generated by this file and the inventables post processor are nearly identical except the missing tool change line as expected. I don’t know if I’ll use it, I’m still figuring out my workflow from Fusion 360 and VCarve Pro.

11

Try CNCjs