Homemade Arc Welder

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Re: Homemade Arc Welder

Postby flight control » Tue Oct 29, 2013 6:46 am

That thing is badass. I laughed my ass off the whole time watching your video, I was almost expecting you to start convulsing on the floor with flames coming off the top of your head.

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Re: Homemade Arc Welder

Postby assateague » Tue Oct 29, 2013 6:47 am

There was a pretty big part of my mind that was expecting the same thing.
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Re: Homemade Arc Welder

Postby assateague » Tue Oct 29, 2013 11:07 am

Headed out to rewire the welder, see what happens running just 110. No clue, but I'm gonna find out.
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Re: Homemade Arc Welder

Postby The Duck Hammer » Tue Oct 29, 2013 11:11 am

I hope it works out cause I'd rather **** around with 110 than 220 anyway.


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Re: Homemade Arc Welder

Postby Olly » Tue Oct 29, 2013 11:14 am

The Duck Hammer wrote:I hope it works out cause I'd rather **** around with 110 than 220 anyway.


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Why? Its not the volts that kill you.
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Re: Homemade Arc Welder

Postby The Duck Hammer » Tue Oct 29, 2013 11:18 am

Olly wrote:
The Duck Hammer wrote:I hope it works out cause I'd rather **** around with 110 than 220 anyway.


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Why? Its not the volts that kill you.


True. But the fact that there is more power there could lead to it overheating faster and a whole bunch of scary ****. But most of it is just mental paranoia. :lol:


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Re: Homemade Arc Welder

Postby Olly » Tue Oct 29, 2013 11:22 am

I've touched a smallish Tesla Coil with about 8,000 volts running through it before. Volts don't scare me, amps do.
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Re: Homemade Arc Welder

Postby The Duck Hammer » Tue Oct 29, 2013 11:30 am

Cool. I've always wanted to see a Tesla coil. Still would scare the **** out of me. Whether it is deadly or not.


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Re: Homemade Arc Welder

Postby assateague » Tue Oct 29, 2013 11:41 am

Olly wrote:
The Duck Hammer wrote:I hope it works out cause I'd rather **** around with 110 than 220 anyway.


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Why? Its not the volts that kill you.



This isn't entirely true. High voltage lines will kill you, because they can overcome the body's natural resistance.
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Re: Homemade Arc Welder

Postby Olly » Tue Oct 29, 2013 11:51 am

It's not the volts in the high voltage line that kills you... it's the current. Only takes something like 100mA to stop your heart where I have literally had over 8k volts running through me. The Telsla coil was obviously high volts low current.
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Re: Homemade Arc Welder

Postby 3legged_lab » Tue Oct 29, 2013 12:57 pm

Olly wrote:
The Duck Hammer wrote:I hope it works out cause I'd rather **** around with 110 than 220 anyway.


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Why? Its not the volts that kill you.

110 hurts less
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Re: Homemade Arc Welder

Postby aunt betty » Tue Oct 29, 2013 7:54 pm

Electricity is like voodoo. Even engineers dont fully understand it.

Once a young electronics technician said to my dad, "12 volts aint ****".
So dad got out a power supply, wired the kid up, grounded him good, then said, "tell me when to stop".
At around TWO VOLTS the guy was crying and begging dad to stop.

Its the volts and the amps....that kill u.
Grounding matters too.
Olly, you had on high quality safety boots when you touched 8000 volts, am I right?
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Re: Homemade Arc Welder

Postby (MT)Montanafowler » Tue Oct 29, 2013 8:23 pm

holy **** 460 amps? i'm pretty sure you could use rebar as a **** electrode with that power!
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Re: Homemade Arc Welder

Postby assateague » Wed Oct 30, 2013 1:28 am

(MT)Montanafowler wrote:holy **** 460 amps? i'm pretty sure you could use rebar as a **** electrode with that power!


He's since revised his estimate upward a little bit. Can't wait to try it tomorrow with some modifications, see what happens.
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Re: Homemade Arc Welder

Postby (MT)Montanafowler » Wed Oct 30, 2013 11:12 am

assateague wrote:
(MT)Montanafowler wrote:holy **** 460 amps? i'm pretty sure you could use rebar as a **** electrode with that power!


He's since revised his estimate upward a little bit. Can't wait to try it tomorrow with some modifications, see what happens.


i saw, 600A is ridiculous. if it was me i would wear a lead cup, just in case that thing is radioactive.

also, i wonder how feasible it would be to use 3 bar coated in flux as an electrode. I'd imagine 600A would probably cook it off pretty well.
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Re: Homemade Arc Welder

Postby assateague » Sat Nov 02, 2013 11:20 am

We got it down to 180A. Instead of using resistors, we wound some 10ga wire around a block of metal, made a small electromagnet which introduces impedance into the line. Played with the number of coils while shorting out the ground and electrode holder. 180A seems to be about right.

This was the 3rd weld with the Frankenwelder and seemed to work pretty good even on thinner stock. I'm happy as a clam.

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Re: Homemade Arc Welder

Postby The Duck Hammer » Sat Nov 02, 2013 11:22 am

Did you not burn through that metal?


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Re: Homemade Arc Welder

Postby Eric Haynes » Sat Nov 02, 2013 11:49 am

The Duck Hammer wrote:Did you not burn through that metal?


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It did in a few spots by the looks of it. Not bad though.

What rod are you using? I don't ever use AC to weld but that weld looks like an AC weld to me.

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Re: Homemade Arc Welder

Postby The Duck Hammer » Sat Nov 02, 2013 11:53 am

Eric Haynes wrote:
The Duck Hammer wrote:Did you not burn through that metal?


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It did in a few spots by the looks of it. Not bad though.

What rod are you using? I don't ever use AC to weld but that weld looks like an AC weld to me.

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A stick welder should have vaporized that thin ****. At least it would have if I was welding.


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Re: Homemade Arc Welder

Postby assateague » Sat Nov 02, 2013 12:55 pm

Using a 5/64" 6013 stick. The burn throughs were as we were unending coils, seeing what amperage worked best.

As far as AC, I have no clue. It's plugged into a 220V receptacle with 2 hots and a ground, and a 50A breaker. It's got 37V coming out, and around 180A, now. Only the amps change with the added impedance (number of coils around the metal block), not the volts.
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Re: Homemade Arc Welder

Postby Eric Haynes » Sat Nov 02, 2013 1:16 pm

assateague wrote:Using a 5/64" 6013 stick. The burn throughs were as we were unending coils, seeing what amperage worked best.

As far as AC, I have no clue. It's plugged into a 220V receptacle with 2 hots and a ground, and a 50A breaker. It's got 37V coming out, and around 180A, now. Only the amps change with the added impedance (number of coils around the metal block), not the volts.


Its AC. I hate welding with AC or else Id give it a shot in making one just for the fun of it.

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Re: Homemade Arc Welder

Postby Eric Haynes » Sat Nov 02, 2013 1:20 pm

And I guess i shouldn't say I hate AC completely...i use it for aluminum. Straight DC is the only way to go for typical welding and reverse for thin(which i never do)

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Re: Homemade Arc Welder

Postby rozzo842 » Sat Nov 02, 2013 3:10 pm

Looks much better. Congrats on dialing it in
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Re: Homemade Arc Welder

Postby one2many » Thu Nov 07, 2013 12:12 am

you are nuts Jim but you made it work :clap:
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Re: Homemade Arc Welder

Postby aunt betty » Fri Dec 13, 2013 8:33 am

Make it work. ..
I bet AT has fixed things by making the wrong tool do the job... just never give up kinda guy. Great guy to have around I'm betting.
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