Not sure what is going on or happened here. Noticed this on a few cuts recently. It’s ballscrew so I wouldn’t think it’s slipping, I checked all the set screws on all the ballscrews. I’ve ran this program many many times before.
Check the machine mechanically — are all the couplers in place and secure?
If you power up the machine and jog to the center and put a probing pin or tool in the spindle and then try to shift the tip of the probing pin or the shaft of the tool does anything move/shift? Investigate and address.
Is all the wiring in good condition and all connectors secure?
What feeds and speeds are you using? What sort of toolpaths? Are you trying to cut a slot just as narrow as the tool? Where possible add geometry and cut as a pocket down to tab height or the penultimate pass.
Went through and checked all the bolts on everything, also cleaned and lubed. Things seemed ok.
I swapped out my collet as well for the sake of it.
Cut out 2 pieces yesterday and it was fine, so hopefully resolved.
I typically run at 40/20 to get as smooth of a finish as possible, takes longer but nicer cut especially when crossing the grain on a curve, otherwise i would get some tearout with anything faster.
Those cuts that were in my pic were a combination of a profile (with seperate last pass) and some 3d roughting/3d finish passes.