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How to adjust the laser focus ? - KYSSON - Mini Laser Engraving, Marking Machines Online Shop
Cutting objects in different height, need to readjust the laser focus. Step 1 Put a gray paper at the height of the object. Step 2 Wear protective glasses. Step 3 Turn on the laser (strong). Step 4 Trun the bottom of the laser left and right. Make the laser focus became smaller. The paper should [...]