Programs always exceed positive Z limit at end

JetForMe wrote:

I’m just getting my router up and running, using Fusion 360’s generic linuxcnc.cps post processor to post to the machine, and one thing that always happens is at the end of the run, it trips hitting the soft positive Z limit. You can see it in the attached screenshot, which also shows the tail end of the gcode that ran. It runs normally in G54 with z=0 set to the top of work, more than 200 mm below the top of the Z-axis. Going to G53 Z0 should be fine; I can do it manually without tripping things (I think).

Any ideas? Thanks!

In gcode you have 15mm, in the screenshot it is at 208mm ? How ? Why ?
Do you have a G21 at the top of gcode ?

Try bringing the soft limit down a bit . It might be overshooting

tommylight wrote:

That is all good, but how did you get Z to go up to positive 208mm ? I do not see any offsets active in that screenshot.

[AXIS_Z]
MIN_LIMIT = -340.0
MAX_LIMIT = 0.0
MAX_VELOCITY = 200
MAX_ACCELERATION = 1000


[JOINT_3]
AXIS = Z
MIN_LIMIT = -340.0
MAX_LIMIT = 0.0