[manekinen] came up with a really great solution to the problem of welding together sheet metal. It’s a very easy to build spot welder perfect for fabbing steel cases. The core of the build is ...

i use 80 amps zenli soft switching solid state relay. a stm32f103c8t6 blue pill microcontroller board. a nokia 5110lcd screen two buttons one foot pedal and one parameter setting push button, jumper ...