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    How to tighten a loose heatsink? (No set screw)

    Hi guys, I couldn't find any topics on this, (Maybe I need to hone my search-fu?) but sorry in advance if it's common knowledge. I bought a green laser host that has an aluminium heatsink ring. I expected it to be too tight for the module and need sanding. Upon receiving my module today I've...
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    505nm diodes in use!

    Sorry if this has already been mentioned. After all the hype over green diodes being finally available in 505 / 515nm a while back, it seems they actually do have a practical use, despite not being ideal for projection. Flicking through a new Surefire catalog they have a new weapon LED light...
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    Laser Stimulating Eyes to Focus More Effectively?

    Hi Guys, Long time lurker and first time poster, sorry if this should be in another section. :) I have noticed with higher brightness lasers such has my "1mW" ;) ebay 532, and my 1W 445 home build (thanks DTR) that after pointing them and viewing the dot around the backyard (distance of 10 -...


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