This is a bunch of photos and clips of us trying to put a battery tab spot welder together from junks. Please be careful working with the capacitor and transformer in the microwave.
Solda ponto por projeção caseira utilizando um velho transformador de solda de eletrodo. Secundário com 4 espiras de fio 35mm² ( 6,0 VAC e 1.000 A ) - Spot welder for projection using an old transformer welding arc machine. Secondary with four turns of wire 35mm²
DIY 2.7 VAC 400 amp spot welderOriginally designed for welding tabs on NiCd battery cells.
Step by step tutorial how to make a Spot Welder.Handfree modePower controlUse old microwave and vacuum cleanerElectric Circuit - https://driv...
The classic microwave oven transformer design. Just the first testing. Tried with 2 turns on the secondary side first, but added another to speed it up :) So now its about 2.8 VAC and a lot of amps. I have a timer I will add later to control the welding time.