Is the lens actually coming out of the head when you are cutting?
(Because it is supposed to move up and down in there as the focal point changes…you don’t want to force it in there, let the magnets do their job.)
If you are getting inconsistent cuts, make sure that you have the height entered correctly for the material, and that the material you are cutting is perfectly flat. Since most of the woods, (and the acrylics can do it too) experience some degree of warp…it helps to pin down the material while it is being cut.
The honeycomb pins are excellent for flattening out a warped board and providing more consistent cuts.
Also check to make sure the tray is seated flat in the dimples. 