Fusion generated gcode

[benmkw]

the following input

;Fusion 360 CAM 2.0.9011
; Posts processor: MPCNC ohne Tastplatte.cps
; Gcode generated: Sun Oct 18 21:46:19 2020 GMT
; Document: 5“ Quad frä¤sen v13
; Setup: Plates
;
; Ranges table:
; X: Min=1.341 Max=222.909 Size=221.568
; Y: Min=0.888 Max=227.927 Size=227.039
; Z: Min=-2 Max=15 Size=17
;
; Tools table:
; T3 D=2 CR=0 - ZMIN=-2 - flat end mill

; *** START begin ***
G90
G21
M84 S0
G92 X0 Y0 Z0
; *** START end ***

; *** SECTION begin ***
;Bore2 3 - Milling - Tool: 3 -  flat end mill
; X Min: 5.183 - X Max: 232.917
; Y Min: 10.385 - Y Max: 267
; Z Min: -2 - Z Max: 15
; COMMAND_START_SPINDLE
; COMMAND_SPINDLE_CLOCKWISE
M0 Turn ON 5000RPM
; COMMAND_COOLANT_ON
M117  Bore2 (3)
G0 Z15 F1200
G0 X230.263 Y14.512 F6000
G0 Z1.5 F1200
; MOVEMENT_LEAD_IN
G1 Z-0.3 F600
G1 X230.267 Z-0.339
G1 X230.278 Z-0.377
G1 X230.297 Z-0.411
G1 X230.322 Z-0.441
G1 X230.352 Z-0.466
G1 X230.386 Z-0.485
G1 X230.424 Z-0.496
G1 X230.463 Z-0.5
G1 X230.563
G2 X230.763 Y14.312 J-0.2
; MOVEMENT_CUTTING
G1 X230.759 Y14.249 Z-0.505
G1 X230.747 Y14.187 Z-0.51
G1 X230.727 Y14.127 Z-0.515
G1 X230.7 Y14.07 Z-0.52
G1 X230.666 Y14.016 Z-0.525
G1 X230.626 Y13.968 Z-0.53
G1 X230.579 Y13.925 Z-0.535
G1 X230.528 Y13.888 Z-0.54
G1 X230.472 Y13.858 Z-0.545

; [..] later

G1 X200.186 Y2.373 Z-1.941
G1 X200.184 Y2.348 Z-1.911
G1 X200.182 Y2.33 Z-1.877
G1 X200.18 Y2.318 Z-1.839
G1 Y2.315 Z-1.8
; MOVEMENT_RAPID
G0 Z15 F1200
; *** SECTION end ***

; *** STOP begin ***
M400
; COMMAND_COOLANT_OFF
G0 X0 Y0 F6000
; COMMAND_STOP_SPINDLE
M300 S300 P3000
M0 Turn OFF spindle
M117 Job end
; *** STOP end ***

using

    for elem in gcode::parse(&data) {
        println!("{}", elem.to_string());
    }

produces

G90
G21
M84 S0
G92
G92 X0 Y0 Z0
M0
T5000
T5000 R117 B2
G0 Z15 F1200
G0
G0 X230.263 Y14.512 F6000
G0
G0 Z1.5 F1200
G1 Z-0.3 F600
G1
G1 X230.267 Z-0.339
G1
G1 X230.278 Z-0.377
G1
G1 X230.297 Z-0.411
G1
G1 X230.322 Z-0.441
G1
G1 X230.352 Z-0.466
G1
G1 X230.386 Z-0.485
G1
G1 X230.424 Z-0.496
G1
G1 X230.463 Z-0.5
G1
G1 X230.563
G2
G2 X230.763 Y14.312 J-0.2
G1 X230.759 Y14.249 Z-0.505
G1
G1 X230.747 Y14.187 Z-0.51
G1
G1 X230.727 Y14.127 Z-0.515
G1
G1 X230.7 Y14.07 Z-0.52
G1
G1 X230.666 Y14.016 Z-0.525
G1
G1 X230.626 Y13.968 Z-0.53
G1
G1 X230.579 Y13.925 Z-0.535
G1
G1 X230.528 Y13.888 Z-0.54
G1

...

G1
G1 X200.194 Y2.437 Z-1.985
G1
G1 X200.19 Y2.403 Z-1.966
G1
G1 X200.186 Y2.373 Z-1.941
G1
G1 X200.184 Y2.348 Z-1.911
G1
G1 X200.182 Y2.33 Z-1.877
G1
G1 X200.18 Y2.318 Z-1.839
G1
G1 Y2.315 Z-1.8
G0 Z15 F1200
M400
G0 X0 Y0 F6000
M300 S300 P3000
M0
T117

Which has issues around handling of M0/ M300/M117 and double entries of G Lines. I understand M commands are not easy to parse as they may be custom.

It seems to me that Fusion outputs one gcode per line which this parser does not really take advantage of cause I think it assumes many instructions may appear on the line.

The double entries are probably some user error on my side :/

Thanks :)

[Michael-F-Bryan]

I'm guessing you are running into #44.

Something tells me I'll need to rewrite the parser when I get some free time. Or at least revise the grammar so newlines have a semantic meaning and are handled correctly by the parser.

That should also give me a chance to handle your M0 Turn ON 5000RPM example in #5 (comment).

[benmkw]

Ok nice 👍

I can split by newlines and then parse each line which seems to fix the G ops appearing twice and also make them not get mangled by the M ones. (I'd like to plot them using wgpu+lyon much like the yew example and also display some statistics and possibly give the user some hooks for processing.)

FWIW this whole thing started for me cause a friend has trouble using another paid software with this gcode so I said well maybe I can help with that :D

Feel free to ping me if you'd like me to test something or need feedback :)