Welder World Blog

Posts Tagged ‘Homemade’

Just showing what’s new

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.

Homemade welder I built using lawnmower engine and alternator. Credits go to: www.huv.com for alternator hook-up and to www.qsl.net for the idea. still have some cosmetic work left. Sorry for the shakieness.

More info and the schematic at frikkieg.blogspot.com CHECK OUT VERSION 2 solid state dual pulse welder http This started when both the batteries of my drill died and not willing to pay the outrages amounts for new batteries I started to look around for a better alternative. I realized that the guys that were building their $100 welder was on the right track but some did not really understood the math involved to figure out the current and discharge times of these machines.Inspired by these guys at endless-sphere.com I started from scratch and designed this welder because I could not find any good schematics on the internet. It took me 3 months and here it is::::::

I had a dead microwave oven transformer so i sawed off the secondary and replaced it with 2 turns of very thick wire. I then made a simple yet very effective spot welder.