Step 1. Take out of the laser beds from the foam.
Step 2. Put them inside of the machine, with screws side facing up. Make sure it's sitting properly. You may use your hand to press each corresponding corner to feel if it's flat or not.
- What if my laser beds won't fit the machine?
Rest assured, the mold used for assembling the laser beds is uniformly made and the length is consistent. The screws on the laser beds can be removed and reassembled.