Omtech SH-G1390 User Manual page 96

6 Maintenance
6.4.2 1st Mirror Alignment
• Wear safety goggles during the entire aligning process.
• Avoid attaching the tape directly to any of the mirrors.
• Less than 15% of the maximum power (not Min.) should be sufficient to leave a
clear mark without setting the testing tape on fire.
• Always make sure the path is clear between the laser and its target. Never
allow foreign objects between the laser and its target. Always close the cover
before firing the laser. Do not look directly at the active laser through the
cover during this procedure.
After ensuring the laser is well aligned between the laser tube and 1st Mirror, check the alignment
between 1st Mirror and 2nd Mirror.
1. Use the direction arrows on the control panel to send 2nd Mirror to the BACK of the bed along
the Y axis.
2. Place a piece of masking tape on 2nd Mirror's frame. DO NOT place the tape directly onto the
mirror.
3. Press Pulse to manually fire the laser and observe if the burnt hole is at the center of the
masking tape on 2nd Mirror. If so, 1st Mirror and 2nd Mirror are aligned; if not, continue to step 4.
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