ALIGNING THE BEAM BETWEEN MIRROR#2 AND MIRROR #3
If we take a position check, the bridge should be at the front of the system and the lens carriage is at the right side
of the machine. There should also be two marks on the masking tape that was placed over the lens carriage. To
make the beam parallel to the motion system, both marks that we make must hit the exact same spot. Note
where your first mark was made and where your second mark was made. Once you know this, use the adjustment
screws on mirror #2 to move that second burn mark over the first. To do this, make small adjustments to the
adjustment screws and fire the tube. This method will allow you practically “walk” the beam right where you want
it.
Tighten screw #1 to move the beam to the left
Loosen screw #1 to move the beam to the right
Tighten screw #2 to move the beam right
Loosen screw #2 to move the beam left
Tighten screw #3 to move the beam down
Loosen screw #3 to move the beam up
Once you have walked the second burn mark over the first burn mark
1.
Replace the masking tape with a new piece.
2.
Move the lens carriage to the far right hand side of the bridge.
3.
Fire the tube to make a mark on the tape.
4.
Move the lens carriage to the far left hand side and fire the tube again to make a second mark.
5.
Check the two marks, if they are in different locations, then repeat the above alignment process.
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