How To Make A Burning Laser - Save 100's Of $$$
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Why spend $600 on a 100-Mw laser when you can make one in 10 minutes?
This
is a combination of a 'pot mod' (the tightening of that screw) and a 'resistor
mod' (soldering iron).
Disclaimer: This modification may shorten the lifespan of your laser pen.
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