Thread: Dxf2Gcode newby question...
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21-03-2019 #7
I became curious after reading the last post and while I can't claim to have an easy answer,I did generate a toolpath for GRBL for a bit of a learning tool for myself.I generated a hexagon in Freecad and hope that both the .nc file and the screenshot will appear below.As you will see the tool radius compensation has been applied to the tool centre line data and there is no G41 or G42.
Just the edited highlights of the toolpath:
N240 (begin operation: Profile_Edges)
N250 (Path: Profile_Edges)
N260 (Profile_Edges)
N270 (Compensated Tool Path. Diameter: 6.0)
N280 G0 Z11.0000
N290 G0 X65.1841 Y63.9240
N300 G0 Z9.0000
N310 G1 X65.1841 Y63.9240 Z0.0000 F180.00
N320 G1 X71.8109 Y60.0981 Z0.0000 F480.00
N330 G2 X73.3109 Y57.5000 Z0.0000 I-1.5000 J-2.5981 F480.00
N340 G1 X73.3109 Y22.5000 Z0.0000 F480.00
N350 G2 X71.8109 Y19.9019 Z0.0000 I-3.0000 J-0.0000 F480.00
N360 G1 X41.5000 Y2.4019 Z0.0000 F480.00
N370 G2 X40.6851 Y2.0793 Z0.0000 I-1.5000 J2.5981 F480.00
N380 G2 X38.5000 Y2.4019 Z0.0000 I-0.6851 J2.9207 F480.00
N390 G1 X8.1891 Y19.9019 Z0.0000 F480.00
N400 G2 X6.6891 Y22.5000 Z0.0000 I1.5000 J2.5981 F480.00
N410 G1 X6.6891 Y57.5000 Z0.0000 F480.00
N420 G2 X8.1891 Y60.0981 Z0.0000 I3.0000 J0.0000 F480.00
N430 G1 X38.5000 Y77.5981 Z0.0000 F480.00
N440 G2 X41.5000 Y77.5981 Z0.0000 I1.5000 J-2.5981 F480.00
N450 G1 X65.1841 Y63.9240 Z0.0000 F480.00
N460 G0 Z11.0000
N470 (finish operation: Profile_Edges)
(begin postamble)
N480 M5
N490 G17 G90
The challenging part might be to import your .dxf's into Freecad to experiment with and my experience is that they can come in as dozens,even hundreds, of entities that need to be joined together.I am quite a novice with Freecad and might not be aware of a way round this sort of thing and one may well exist.There are a few post processors included with Freecad and I selected GRBL.
If you do elect to switch to a Raspberry Pi,what will you run on it?
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