DIY arc welder

[Super Mech]

Has anyone here ever built a gas engine driven arc welder out out a car alternator? I see a lot of info on the web about how to do this, but I am trying to get some 1st hand info from someone here who has done it. I need a winter project and this might be just the ticket.

 

[Farmall450]

I think I saw something similar on a survival TV show...

 

[Farmall450]

This site has some genuine stuff....

http://www.motherearthnews.com/do-it-yourself/portable-dc-arc-welder-zmaz80ndzraw.aspx

 

[Farmall450]

I see a lot of potential, but also some disadvantages. Then again, for $20, even if you're maxing at 50 amps, it isn't bad at all.

 

[Super Mech]

I was thinking of one maybe a little more involved. Something around 120-140 amps.

 

[bobcatdan]

Do you need the portabilty of a gas driven welder? If not, buy a used tombstone for $50 and built something with it.

 

[Super Mech]

Do you need the portabilty of a gas driven welder? If not, buy a used tombstone for $50 and built something with it.

Yes portability is key. I have a couple of wire feed welders, but often times I need to do some work outdoors and there never is a 50A oultet around when you need it!

 

[Super Mech]

Bump

 

[bwh998]

someone posted this in another thread: