Linuxcnc doesnt follow the gcode

Hi, please help, i don't know what's wrong. See the attached picture. Linuxcnc makes curves, where there should not any, gcode comes from freecad and seems ok.
Thank you
Michael

One thing that seems very odd is that you have feed rates of 200 and 3000 in your code. I don't think that makes any sense at all.
Try setting it to F200 and delete all the rest.

[edit]
With normal path blending there is no way your machine can accelerate and decelerate fast enough to cut a 90° corner at F3000.

200 mm/min is the vertical, 3000 mm/min the horizontal feed. These are the limits of my machine.

If you really think you need to go that fast then try G64 in the preamble:
linuxcnc.org/docs/html/gcode/g-code.html#gcode:g64

Something like G64 P0.1 will tell the motion planner to keep the path within 0.1 mm of the requested path.

[edit]
your acceleration rates would have to be very impressive to get your machine to go around a 90° corner at F3000 so the motion planner will adjust the radii to a size that keeps the acceleration within the limits you set in the ini file.

Something learned, thank you very much. Works perfect now.