Laser jumping query

Need help guys my atomstack keeps jumping or slipping half way through program can anyone think what it could be… I’ve tightened the belts … cleaned the laser … please see photos

Have you ever printed this job successfully?

I would look at these two( travel speed and acceleration ):

  1. Focus on $110, $111 and $112 for max X, Y, Z travel speeds in mm/min.
  2. Check $120, $121, $122 for X, Y, Z acceleration in mm/sec^2

Brilliant thank u will give it a go