Shrinking the scale and upping the complexity is a fight against the limits of physics, and optical lithography—etching nanometre ... is to use a free-electron laser (FEL), where electrons ...

Mortensen said that oxidized edges, created when sheet metal is laser-cut and oxygen is used as an assist gas, have become less of a problem in recent years. (Edges with oxidation present adhesion ...

[Pete] had a friend who would powder coat metal parts for him, but when he needed 16 metal parts coated, he decided he needed to develop a way to do it himself. Some research turned up the fluid ...

[Ryan] is using a powder coating gun he ... coated board into a laser engraver where the PCB design is melted onto the copper. After that, wash the board off, etch it, and Bob’s your uncle.