Microwave Oven Transformer Welder.

by Grimarr

15K2811

Intro: Microwave Oven Transformer Welder.

There's already a great instructable for how to build this here

But I thought I'd post some pictures of what my friend and I came up with as our finished product, and just show off a little.

The picture quality is likely on the "eh" side, I'll get some new ones with a camera that isn't my cellphone soon. It works though. That silver dot in the last picture is a hole I filled in a bar of 1/4" steel with some 1/16" 6013 welding rod I picked up at Harbor Freight for 5 bucks. It welds pretty nice actually.

11 Comments

matroska 14 years ago

I'm in the process of dismantling a micro-wave right now. I've stoped for a lilttle while to be sure I'm doing a safe work of dismantling the electronics inside. I haven't shorted the potentially lethal capacitor yet. Good job! I'll be done soon though!

Grimarr 14 years ago

When we were dismantling our ovens, we got all geared up to short the caps and... nothing happened. I was most displeased.

juanoporras 14 years ago

Most newer ovens come with a resistor screwed to the frame so the capacitor discharges... but sometimes this fails... and one time I got a nice melted/burnt dot on a screwdriver :P better to make sure!!!

matroska 14 years ago

Better this than not being geared and having something blow up in our face :P The capacitor CAN hold a charge for a long time, but that doesn't mean it will absolutely I guess..

tech_sponge61 15 years ago

nice setup I've been wanting to do this instructable too. just don't have the time. did you put the transformers in a chest?

Grimarr 15 years ago

It's an old Soviet rocket box. I'm actually on the lookout for a new enclosure, as this one has dry rot.

matroska 14 years ago

Soviet rocket box! Hell yeah! :D

tech_sponge61 15 years ago

how about using one of the old microwaves? that would be kinda cool unless its in pieces beyond repair?

Grimarr 15 years ago

That's... actually not a bad idea. I'll have to see if we can put the old radarange together. I'm thinking of something a little less huge though. Have to see what turns up.

tech_sponge61 15 years ago

yea i guess easy transport would be nice.. if you do find some thing cool to house it in let me know. good luck.

Grimarr 15 years ago

definitely, I plan to add photos to this if we change anything.