CO2 Laser Tube. Check for problem, wiring, Refit, check mirror alignment. - YouTube
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Replacing a cheap Chinese CO2 Laser Tube | MCU on Eclipse
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My Full Spectrum laser tube shattered! I only have about 50 hours on the machine (if that). Of course their warranty only covers the tube for 1 year. It's been 1 year
eBay K40 CO2 Laser - Step by Step Guide To Replace a CO2 Laser Tube! - YouTube
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Replacing a CO2 Laser Tube : 4 Steps (with Pictures) - Instructables
Replacing a cheap Chinese CO2 Laser Tube | MCU on Eclipse