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?
Code:
(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
