Microwave oven transformer spot welder builds are about as common as Nixie tube clocks around here. But this spot welder is anything but common, and it has some great lessons about manufacturing ...

A very powerful spot-welder is built from an very powerful transformer salvaged from an old microwave-oven. Arduin0 nano is used to controll the pulse duration along with a OLED display to display the ...

DIY spot welder from old microwave for making Li-ion 18650 packs with nickel strips. Uses bluetooth communication in custom Android app to adjust welding parameters ...

Microwave oven transformer spot welder builds are about as common as Nixie tube clocks around here. But this spot welder is anything but common, and it has some great lessons about manufacturing ...