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 ...

The project illustrates how to build a homemade spot welder which can be used for welding two pieces of metal together by producing a highly defined point of contact weld and using a microwave oven ...

Spot welding should easier than it looks. After all, it’s just a lot of current in a short time through a small space. But it’s the control that can make the difference between consistently ...