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Laser Cabinets

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Genmitsu Enclosure
Orange Plexiglass
For a 445nm laser, orange acrylic in 3mm will give you ‘adequate’ protection from the odd stray reflection for diodes <3W, but there’s no substitute for glasses and you should still wear them - you’ve only got one spare eye
The darker the orange tint, the more the protection.
You can beef up the protection if you have a 3W<8W laser by putting a layer of reflective acrylic ‘one way’ sheet on the inside. The kind of stick-on sheet you would use for an infinity mirror (which is where I got mine - off-cuts from my infinity clock).
Chemcast Cast Transparent Colored Acrylic : TAP Plastics

https://amzn.to/2NIAtOz
Extrusions
Hard board
Glass
Spray Tint
Exhaust Fan
Formica