CO2 MIRROR ALIGNMENT CHECKLIST Safety: - Use low power pulses only. - Keep the lid closed when firing. - Never place hands in the beam path. - Stop if you hear arcing, popping, or see unexpected fire. Step 1: Tube to mirror 1 - Place tape/card target at mirror 1. - Pulse at low power. - Confirm the beam hits the mirror face cleanly. Step 2: Mirror 1 to mirror 2 - Test near and far Y positions. - Adjust mirror 1 until both marks overlap. Step 3: Mirror 2 to mirror 3 - Test left and right X positions. - Adjust mirror 2 until both marks overlap. Step 4: Mirror 3 to nozzle - Pulse through the nozzle target. - Adjust mirror 3 until the beam exits near the center. Step 5: Four-corner verification - Test all four bed corners. - If cutting power changes across the bed, repeat alignment and check bed level.