DIY Laser Pointers

I have a small battery on the 5th battery,Just once again idle boring Taobao looking for laser head, find a 5mW. Preferential purchase of electronic cigarettes, is optimistic about this shape and cylindrical lithium battery. First on the circuit, because…

A video of burning solder at 8 meters I bought a 3000mw laser pointer from LuckLaser and found two undesirable places: Large heat, poor heat dissipation. This high power laser, Heat will certainly be great, But the cooling design is…

DIY 40W Laser pointer DIY 40W CO2 laser gun I made a hand-held laser gun, the tube is 40W CO2 laser tube, with 532nm 5mw green laser sight for aiming, It can be fired within ten meters .Of course, if…