I marked a grid with my 20w fiber laser in a previous video.  I’m now marking the same grid (same settings / same ezcad file) with a friend’s 30w fiber laser to see the difference.  This 30w laser has a much larger marking area and longer focal length so it’s not an apples to applesparison.  I suspect the 30w would be significantly darker at the same settings if it had the same 150x150mm marking area as my 20w laser.
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laser marker
#30W #20W #Fiber #Laser #Marking