spot welder design using microwave transformer. advice on use of relays, capacitors, and timer circuits would be appreciated. more info in comments. : r/AskElectronics
DIY spot welder
DIY Spot Welder
DIY Spot Welder From Microwave - Now With OLED Display! : 8 Steps (with Pictures) - Instructables
Battery Spot Welder using Microwave Transformer | DIY - NematicsLab