Laser focus adjustment
We have abandoned the traditional zoom laser and installed a fixed-focus laser on the Atomstack, with the specific focus point located 2mm from the bottom of the acrylic cover, and a fixed-focus piece is included in the package. To use the laser, simply adjust the height of the laser (one fixed focus piece away from the top surface of the object being engraved or cut）.
The following is the specific operations:
A. Moving the laser head over the object to be engraved or cut.
B. Placing a fixed-focus piece on the object to be engraved or cut.
Picture Placing fixed-focus piece
A. Loosen the fixing screws on the sliding rails on both sides of the laser to allow the laser to slide freely until it comes into contact with the fixed focus plate (once in contact, the laser can be lifted up slightly to remove the fixed-focus film at the end).
B. Picture Adjusting the laser distance
C. Tighten the fixing screws of the slides on both sides of thelaser.
D. Take out the fixed focus piece and finish focusing.
For optimal cutting, the head needs to be 2mm above the engraving surface. Focusing is done by putting an acrylic sheet/shim under the laser head and lowering the head on the shim. The shim is 2mm thick and after tightening the z axis screws with a hex key, the head stays 2mm above the surface. You need to remove the shim afterwards.