Z feed rate ignored?
- tom12
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07 Nov 2023 15:49 - 07 Nov 2023 15:50 #284788
by tom12
Z feed rate ignored? was created by tom12
I have a weird problem, in which Z feed rate is ignored for all, except the very first Z moves.
My setup is a 3 axis mill config.
Below is a minimum working example gcode.
The first Z move (to -1.0 mm) is done at correct speed (10 mm/min).
All subsequent moves occur at full speed and slam the cutter into the workpiece.
What am I missing?
My setup is a 3 axis mill config.
Below is a minimum working example gcode.
The first Z move (to -1.0 mm) is done at correct speed (10 mm/min).
All subsequent moves occur at full speed and slam the cutter into the workpiece.
What am I missing?
(Exported by FreeCAD)
(Post Processor: linuxcnc_post)
(Output Time:2023-11-07 15:59:37.320799)
(begin preamble)
G17 G54 G40 G49 G80 G90
G21
(begin operation: Fixture)
(machine units: mm/min)
G54
(finish operation: Fixture)
(begin operation: TC: 8mm endmill001)
(machine units: mm/min)
(TC: 8mm endmill001)
M5
M6 T11
G43 H11
M3 S1193
(finish operation: TC: 8mm endmill001)
(begin operation: Pocket_Shape)
(machine units: mm/min)
(Pocket_Shape)
G0 Z0.000
G0 X0.000 Y0.000
G1 X0.000 Y0.000 Z-1.000 F10.000
G1 X-10.000 Y0.000 Z-1.000 F200.000
G1 X-10.000 Y0.000 Z-2.000 F10.000
G1 X10.000 Y0.000 Z-2.000 F200.000
G1 X10.000 Y0.000 Z-3.000 F10.000
G1 X-10.000 Y0.000 Z-3.000 F200.000
G1 X-10.000 Y0.000 Z-4.000 F10.000
G1 X10.000 Y0.000 Z-4.000 F200.000
G0 Z0.000
(finish operation: Pocket_Shape)
(begin postamble)
M05
G17 G54 G90 G80 G40
M2
Last edit: 07 Nov 2023 15:50 by tom12.
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- MaHa
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07 Nov 2023 19:08 #284813
by MaHa
Replied by MaHa on topic Z feed rate ignored?
I don't see G64 in your code, the default value can produce problems with path blending. I would try in the preamble
G64 P.005Please Log in or Create an account to join the conversation.
- tom12
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07 Nov 2023 22:48 #284830
by tom12
Replied by tom12 on topic Z feed rate ignored?
Awesome, that did the trick! Will dig a little into the docs tomorrow to understand how this works exactly.
Thanks.
Thanks.
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