I am trying to mill out a pocket as a test cut using Lightburn Millmage trial version 0.800
I am using Foxalien Masuter Pro 4080 CNC router machine on Windows 10
I have gone over all the settings of, start depth, cut depth and final depth. set XYZ asis to Zero at the top left of the work piece as is the default. After following the sequence of Assign, Process and start, my spindle starts and moves up beyond the required height causing a noise as the upper limit switch is actuated. Then the tool plunges into the work piece and locks up due to the excessive depth though I have set the incremental cut depths of .5 mm with a final depth of 2 mm.
I have checked all my settings for the operations, I have started new operations more than ten times and also deleted the copy of Millmage and re installed it with the same results.
Thinking it could be a physical machine problem, I set up and used the Trial version of Esael and have no Z axis issues cutting out pockets etc.
That sounds like the Save Clearance Height.
Can you reduce this value? It should be slightly higher than the workholding clamps to avoid collisions.
On the 4080, you have 60mm of Z-travel.
That adds up: The noise you heard when the Z-Axis hit the endstop is the stepper motor losing steps.
The machine thinks it’s higher up, and collides with the workpiece when it moves down the same distance.
Decreasing the clearance heights should solve the problem, but also consider enabling the hard limits in the firmware: Enter this command in the console and hit Enter $21=1
This will change it so that
When the switch triggers, it will immediately halt all motion, shutdown the coolant and spindle (if connected), and go into alarm mode, which forces you to check your machine and reset everything.
Thanks for the tips, I followed the suggestion and reduced height to 15 mm from 20 mm and the tool retracted up but stopped as it touched the limit switch and then proceeded to the set “Z” height without crashing.
