Mirror 1# is anchored rigidly to the machine chassis directly in front of the laser tube exit window and remains stationary.

• Execution Protocol: Apply a sheet of optical thermal paper or standard masking tape over the aperture of the 1# mirror frame. Position a scrap block of acrylic ahead of the mount as a safety backstop. Depress the “Pulse / Test Fire” key on your DSP pendant (configure test power low at 10%–15%, with a pulse duration of 0.1–0.3 seconds).

• Target Objective: Inspect the carbonized footprint. Adjust the physical elevation and spatial positioning of the underlying laser tube mounting brackets until the raw laser beam strikes perfectly concentric within the 1# mirror perimeter , ensuring the tube jacket aligns parallel to the machine’s Y-axis rails.

Mirror 2# is mounted onto the left gantry carriage and moves dynamically back and forth along the Y-axis guide rails.

• Execution Protocol: Apply a fresh layer of thermal paper across the face of the 2# mirror protection shroud. Manually index the gantry along the Y-axis until the assembly sits at the closest physical proximity to Mirror 1# (Near-Field/Front position) .

• Pulse Action: Utilizing a cardboard block as a safety shield, hit the pulse command to scorch a crisp, circular reference mark onto the target tape.

This phase isolates and establishes absolute beam parallelism along the entire operational length of the Y-axis rails.

• Execution Protocol: Drive the gantry along the Y-axis to its furthest physical point from Mirror 1# (Far-Field/Rear position) . Reposition your target tape (or verify clear space on the current sheet) and execute a secondary pulse fire.

• Parallelism Diagnostic Evaluation:

  • Coaxial Overlap (Pass): If the far-field burn mark registers perfectly concentric and overlaps the near-field mark exactly, your Y-axis parallelism is locked.

  • Spatial Drift (Fail): If the two marks show separation, you must incrementally tune the three kinematic thumb screws located on the back of Mirror 1# .

• Tuning Logic: Adjust the screws to guide the shifting beam back to the reference mark. Iterate this back-and-forth travel loop until the near-field and far-field pulses converge into a single, perfectly overlapped burn spot .

Mirror 3# resides inside the moving laser head assembly, traversing laterally left and right across the X-axis gantry rail.

• Execution Protocol: Apply target paper directly over the intake aperture of the 3# laser head housing. Manually position the laser carriage along the X-axis rail until it sits at the closest physical proximity to Mirror 2# (Near-Field/Left position) .

• Pulse Action: Trigger the pulse command to record an initial baseline burn spot on the laser head intake target.

This sequence ensures the beam maintains a stable, parallel path as the laser head moves laterally across the workspace.

• Execution Protocol: Traverse the laser head carriage to its furthest linear point away from Mirror 2# (Far-Field/Right position) . Always deploy a protective cardboard shield to intercept any uncalibrated stray beams. Execute a secondary pulse command.

• Parallelism Diagnostic Evaluation: Evaluate the spatial alignment of the two burn marks. If they exhibit an offset, incrementally adjust the kinematic thumb screws on the back of Mirror 2# . Repeat the near-to-far travel sequence, tracking the marks until both pulses merge seamlessly into a single concentric profile .

The final configuration phase dictates whether the down-beam exits perpendicular to the work bed, preventing angled, out-of-square edges.

• Execution Protocol: Unthread and remove the lower gas-assist nozzle shroud. Apply a layer of thin tape flat across the uppermost entry aperture of the focal lens barrel , directly underneath Mirror 3#. Trigger a brief pulse command.

• Perpendicularity Diagnostic Evaluation:

  • If the resulting burn mark sits dead center within the concentric circle of the focal tube entrance , your optical path calibration is successfully finalized.

  • If the mark drifts off-center (clipping the edges of the inner tube), the beam is projecting at an angle. You must carefully micro-tune the kinematic set-screws on the top of the Mirror 3# housing to guide the trajectory straight down through the center of the focusing optics.