Laser specifications include maximum laser output power and laser type. Most laser cutting and welding machines use carbon dioxide (CO2) lasers; neodymium-doped, yttrium aluminum garnet (Nd:YAG) ...

Laser cutters are ... seams is an ultrasonic welder. This is not as common in the hackerspace tool room, but laser cutters may be a suitable stand-in. Getting the machine into a production mode ...

Rather, he built a very clever gas mixer for filling his homemade CO2 laser tubes, which only looks like a welding machine. (Video, embedded below.) We’ve been following [Lucas] on his journey ...