{"id":1526,"date":"2026-02-03T08:55:05","date_gmt":"2026-02-03T08:55:05","guid":{"rendered":"https:\/\/www.lasercutting-world.com\/blog\/?p=1526"},"modified":"2026-05-11T07:26:47","modified_gmt":"2026-05-11T07:26:47","slug":"how-to-disassemble-and-install-the-vibrating-mirror-of-the-laser-marking-machine","status":"publish","type":"post","link":"https:\/\/www.lasercutting-world.com\/blog\/how-to-disassemble-and-install-the-vibrating-mirror-of-the-laser-marking-machine\/","title":{"rendered":"How to disassemble and install the vibrating mirror of the laser marking machine"},"content":{"rendered":"\n

In the world of laser marking, How to disassemble and install the vibrating mirror of the laser marking machine<\/a>\uff1fthe “Vibrating Mirror” (Galvanometer or Galvo Head)<\/strong> is the precision heart of the machine. It contains two high-speed mirrors that direct the laser beam. Because these are sensitive optical and electronic components, you must handle them with extreme care.<\/p>\n\n\n\n

\n

Warning:<\/strong> Before starting, ensure the machine is powered off and unplugged<\/strong>. Avoid touching the mirror surfaces with your bare fingers, as skin oils can burn into the glass when the laser hits them.<\/p>\n<\/blockquote>\n\n\n\n

Part 1: Disassembly Procedure<\/h2>\n\n\n\n

1. Preparation & Safety<\/h3>\n\n\n\n
    \n
  • Wear powder-free nitrile gloves.<\/li>\n\n\n\n
  • Move the Z-axis (lifting column) to a comfortable height to give yourself room to work.<\/li>\n\n\n\n
  • Remove the Field Lens (F-theta lens):<\/strong> Carefully unscrew the large lens at the bottom of the galvo head. Place it in a protective bag or box immediately.<\/li>\n<\/ul>\n\n\n\n

    2. Disconnect Cables<\/h3>\n\n\n\n
      \n
    • Locate the data cables (usually two DB15 or specialized multi-pin cables) connecting the galvo head to the control card.<\/li>\n\n\n\n
    • Unscrew the locking screws on the connectors and gently pull them out.<\/li>\n<\/ul>\n\n\n\n

      3. Mechanical Detachment<\/h3>\n\n\n\n
        \n
      • The galvo head is typically held in place by four Hex (Allen) screws<\/strong> on the top or side of the mounting bracket.<\/li>\n\n\n\n
      • Support the galvo head with one hand while loosening the screws with the other to prevent it from dropping onto the worktable.<\/li>\n\n\n\n
      • Carefully slide the unit away from the laser source output (the fiber isolator or CO2 path).<\/li>\n<\/ul>\n\n\n\n

        Part 2: Installation Procedure<\/h2>\n\n\n\n

        1. Aligning the Optical Path<\/h3>\n\n\n\n
          \n
        • Check the “entry hole” of the galvo head. Ensure there is no dust on the internal mirrors. If there is, use a clean air bulb (not compressed air cans) to blow it out.<\/li>\n\n\n\n
        • Align the galvo head’s input aperture with the laser source’s output. Physical alignment is crucial:<\/strong> if the beam enters at an angle, your marking will be distorted or “clipped.”<\/li>\n<\/ul>\n\n\n\n

          2. Securing the Head<\/h3>\n\n\n\n
            \n
          • Re-insert the four Hex screws. Tighten them in a diagonal pattern<\/strong> (like lug nuts on a car tire) to ensure even pressure and alignment.<\/li>\n\n\n\n
          • Do not overtighten yet; you may need to make slight adjustments once you test the red-light alignment.<\/li>\n<\/ul>\n\n\n\n

            3. Reconnecting and Lens Attachment<\/h3>\n\n\n\n
              \n
            • Plug the data cables back in and tighten the connector screws.<\/li>\n\n\n\n
            • Carefully screw the Field Lens<\/strong> back onto the bottom of the galvo head. Ensure it is threaded correctly to avoid “cross-threading.”<\/li>\n<\/ul>\n\n\n\n

              Part 3: Post-Installation Calibration<\/h2>\n\n\n\n

              Once installed, the machine’s “brain” needs to be synced with the new “eyes.” You will likely need to perform these steps in your software (e.g., EZCAD):<\/p>\n\n\n\n

                \n
              1. Red Light Adjustment:<\/strong> Ensure the red light pointer is centered within the marking field.<\/li>\n\n\n\n
              2. Field Size Calibration:<\/strong> Mark a $100 \\times 100\\text{ mm}$ square. If it measures $98\\text{ mm}$, adjust the “Scale”<\/strong> or “Galvo Gain”<\/strong> in the software.<\/li>\n\n\n\n
              3. Squareness (Trapezoid) Correction:<\/strong> If the square looks like a trapezoid, adjust the “Keystone”<\/strong> settings in the software.<\/li>\n\n\n\n
              4. Focal Length Check:<\/strong> Since you moved the head, your focal height (the distance from the lens to the part) may have shifted slightly. Re-find your “sweet spot” where the spark is brightest.<\/li>\n<\/ol>\n\n\n\n

                Pro-Tips for Success<\/h3>\n\n\n\n
                  \n
                • Keep the dust cap on:<\/strong> If the laser source is exposed during disassembly, cover it with the original plastic cap to prevent dust from entering the fiber cable.<\/li>\n\n\n\n
                • Check the ground:<\/strong> Ensure the galvo housing is properly grounded to the machine frame to prevent “jitter” caused by static or electromagnetic interference.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                  How to disassemble and install the vibrating mirror of the laser marking machine\uff0cthe “Vibrating Mirror” (Galvanometer or Galvo Head) is the precision heart of the machine. It contains two high-speed mirrors that direct the laser beam. Because these are sensitive optical and electronic components, you must handle them with extreme care.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[44],"tags":[],"class_list":["post-1526","post","type-post","status-publish","format-standard","hentry","category-faq"],"taxonomy_info":{"category":[{"value":44,"label":"FAQ"}]},"featured_image_src_large":false,"author_info":{"display_name":"admin","author_link":"https:\/\/www.lasercutting-world.com\/blog\/author\/admin\/"},"comment_info":0,"category_info":[{"term_id":44,"name":"FAQ","slug":"faq","term_group":0,"term_taxonomy_id":44,"taxonomy":"category","description":"FAQ","parent":0,"count":37,"filter":"raw","cat_ID":44,"category_count":37,"category_description":"FAQ","cat_name":"FAQ","category_nicename":"faq","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/posts\/1526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/comments?post=1526"}],"version-history":[{"count":2,"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/posts\/1526\/revisions"}],"predecessor-version":[{"id":1820,"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/posts\/1526\/revisions\/1820"}],"wp:attachment":[{"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/media?parent=1526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/categories?post=1526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lasercutting-world.com\/blog\/wp-json\/wp\/v2\/tags?post=1526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}