Laser Burn Plate

I notice most of the open frame LASER cutting systems use a “spoil board” under the item being through cut. This “spoil board” is usually MDF (Medium Density Fiberboard). When having been in use for awhile, I notice the board is usually well burned from being exposed to the LASER beam after target material cut-through. …

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By User:Eino81 - Own work, CC BY-SA 4.0,

LASER Pyrogravure

Image By User:Eino81 – Own work, CC BY-SA 4.0, The original LASER invention (as I recall) was a glass like mineral ruby rod with a photo (xeon) flash tube wound around the outside. One end of ruby rod was reflective. The firing end was semi-reflective. I don’t think these were used as industrial LASERs. …

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