but slower chemical etching is faster and cheaper, but uses hazardous chemicals PCB design involves placing components, creating tracks and pads, and using design software PCB amendment involves ...

It is old news that you can print PCB artwork on glossy paper and use a clothes iron to transfer the toner to a copper board, which will resist etchant. But [Squalius] shows us how to do a similar ...

I went to the back to the Perkins School for the Blind, and they actually were selling these etching kits and plastic pages. And so just with hand tools, I would be sitting at the desk at the ...