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Protective Glass to Lens,Original Mirror Replacement Laser Module Window Lens for ATOMSTACK 20W Optical Power Lasers X20/S20/A20/X30/S30 Pro Model Laser Heads and M100 M150 Laser Modules

Protective Glass to Lens,Original Mirror Replacement Laser Module Window Lens for ATOMSTACK 20W Optical Power Lasers X20/S20/A20/X30/S30 Pro Model Laser Heads and M100 M150 Laser Modules
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comments:

porkchop-sandwhiches posted on r/laserengraving3w

I’m not reading those long replies. I had a similar problem. Check the threaded sacrificial lens for burn fog. Thisfixed my 20w longer module.