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Just out of curiosity, why is the ghetto phone solution so bad? Seems like the only thing in danger is the phone. I will be using the laser to sinter/melt plastic in the context of 3d printing. One risk I've read about is invisible wavelengths of light damaging your eyes without a direct blast...

Haha love the pic :P The laser is 445nm you are right. This is what we are considering Amazon.com : 2W 445nm M140 Blue Diode in Copper Module W/Leads : Everything Else $80 across the two of us is a bit expensive. If that's the cheapest it gets, I might have to consider an alternate solution...

Hi guys. I'm new to this forum, so sorry if this is posted in the wrong place or anything :P. Me and my buddy are working on a project involving a 405nm 2w laser. We are concerned about safety right now, and are wondering what the best safety glasses for operating this laser would be...