Chapter 5: Avoiding Problems
Safe, stable use of your machine is inseparable from its proper operation and normal maintenance. If
problems do arise, consult the troubleshooting guide at the end of this chapter. For if that does not
resolve your issue, contact us or a specialized repair service. Do not open or attempt to repair this class
4 laser machine without training.
5.1 Regular Maintenance
1. Clean the Mirrors and Lens Daily
As dust from the engraving process easily accumulates on your mirrors and focus lens, resulting in
energy loss and damage, they should all be cleaned frequently.Daily cleaning is recommended.
The mirrors may be cleaned in place. Use a cotton swab with an acetone or alcohol cleaning solution.
To avoid damage, you must swab the mirror gently. For best results, begin in the center and rotate
slowly to the outer edges in a soft circular pattern. Be careful not to damage the surface coating.
To clean the focus lens, remove it from the laser head, clean it in the same way as the mirrors, and then
replace it. During replacement, be mindful to keep the concave side down.
2. Replace the Water in the Water Tank Weekly
Again, the water cooling system is very important for your laser engraver. Making sure that its water
tank has water that is neither too cold (near 0°C or 32°F) nor too hot (above 35°C or 95°F) should be a
daily habit. For best results, change the distilled water in the tank weekly to maintain the quality of the
water cooling system.
3. Clean the Water Pump and Water Tank Weekly
You should also clean the water tank itself weekly, which can be done while changing the water.
To clean the water tank, turn off the laser engraver if it is on, unplug the pump; disconnect the
tank’s water inlet pipe, allowing it to drain automatically; open the water tank and remove the
pump; clean the pump and tank; replace the pump inside the water tank; reconnect the water inlet
pipe; and then replace the tank’s distilled water. Plug in the pump again, and allow it to run for 2–3
minutes to restore the water through the laser engraver’s cooling system.
4. Clean the Guide Rails Biweekly
For best results, it is recommended that you clean the engraver’s guide rails every two weeks. To clean
the guide rails, turn off the laser engraver. Move the laser head all the way to the right or left. Wipe with
a dry cotton cloth until it is shiny clean. Next, clean and lubricate the Y-axis guide rail and apply a little
oil. (Sewing-machine oil is recommended.) Gently move the head slowly along the Y-axis guide rail
several times to evenly distribute the lubricant.
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