Omtech SH-H1060 User Manual page 43

5.4.3 2nd Mirror Alignment
After ensuring the laser is well aligned between the 1st and 2nd mirrors, check the alignment between the 2nd and
3rd mirrors. Repeat the steps and adjustments above, taking care to use the tape on the mirror's frame and not its
surface.
5.4.4 3rd Mirror Alignment
After ensuring the laser is well aligned between the 2nd and 3rd mirrors, check the alignment between the 3rd
mirror and the workbed. First, unplug the air assist hose from the laser head. Then, place a piece of tape across the
bottom of the laser head and press it onto the nozzle with some force. This will leave a ring mark that can help you
check the accuracy. Repeat the steps from §5.4.1. If the laser is not centred through the laser head, adjust the 3rd
mirror's set screws accordingly as in §5.4.2. Test again until the beam is well aligned and retighten the nuts on the
set screws.
When the laser is well centred along the entire path from the tube to the workbed, your laser mirrors are all correctly
calibrated and (assuming they are clean) performing at optimum efficiency.
5.5 Lubrication Instructions
For best results, clean and lubricate the engraver's guide rails every two weeks. Turn off the laser engraver. Gently
move the laser head out of the way. Wipe away all dust and debris along the X and Y axis rails with a dry cotton
cloth until they are shiny and clean. Do the same to the Z axis screws. Lubricate both the rails and screws with
white lithium grease. Gently move the laser head and X axis to distribute the lubricant evenly along both rails and
raise and lower the bed to distribute the lubricant evenly along the screws.
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