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post #1 of (permalink) Old 12-05-2000, 02:59 PM
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Onboard welder is 99% done!

I am 99% done with my onboard welder.
It burns 1/8" 7018 with ease and looks good too!

Here's a link to the partially completed write-up.
Onboard welder
There are a couple of pictures and a wiring diagram also. I should have more content by the weekend if anyone is interested.
Mizu



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post #2 of (permalink) Old 12-05-2000, 05:30 PM
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Re: Onboard welder is 99% done!

Mizu.. thats looks fantastic!..
a question... would a smaller pulley spin faster and give more volts??

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post #3 of (permalink) Old 12-05-2000, 08:57 PM
 
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Re: Onboard welder is 99% done!

Absolutely incredible write up Mizu!! Outstanding!!
Good presentation, Great web pages, clear, concise, easy to navigate, and straight to the point.
I've not seen a better web article done any better!
Great job!



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post #4 of (permalink) Old 12-05-2000, 11:39 PM
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Re: Onboard welder is 99% done!

A smaller pulley would spin faster but it really isnít necessary.

At 2500 rpm my alternator develops 100 volts. This is great for 1/8" 7018 rod on 3/8Ē steel or higher but maybe a little to hot for thinner metals like ľĒ or less. Thatís the beauty of this thing, if itís burning too hot, just slow the engine down and start welding.

I welded a 3Ē diameter nut to a wellhead today and used 1/8" 7018 rod at 100 volts. I had to decrease the engine rpm initially because it was burning too hot.

I haven't installed an amp meter yet, hence the subject title "99% done".

I am very pleased with how my homemade welder works. I couldnít see paying for a ready-made welder when this home made welder was so easy to make.

Thanks for the compliments.

Mizu


post #5 of (permalink) Old 12-06-2000, 06:58 AM
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Re: Onboard welder is 99% done!

Dang, I am impressed. Another bookmark, anohter printout, anohter project. Will it ever end? I hope not. Great work!

Happy Holidays and Safe Jeepin'

Larry
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post #6 of (permalink) Old 12-06-2000, 08:01 AM
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Re: Onboard welder is 99% done!

i agree. great job. what was the final cost of the project?

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post #7 of (permalink) Old 12-06-2000, 08:37 AM
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Re: Onboard welder is 99% done!

Did you have to make any modifications to the alternator to get it to put out 100v? Wait a minute... no voltage regulator... Great Article!!!
Tom

post #8 of (permalink) Old 12-06-2000, 01:05 PM
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Re: Onboard welder is 99% done!

The alternator is a bone stock Chrysler 120-amp unit. You are right, no regulator and the alt will make voltage relative to alternator speed.

I am trying to find time to tally all the receipts. I suspect that the final bill we be about 200.00. That might be a little high, but close. The largest expense was for the welding supplies and welding leads.

I wonder if a guy could find a part number on one of these alternators and try to find a rebuilt unit at an auto parts store?
It might be a cheaper way to buy a high output alternator vs. the outrageously priced H/O alternators that are being sold for 300.00 plus.
Just more for the too-do list!
Mizu


post #9 of (permalink) Old 12-06-2000, 01:21 PM
 
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Re: Onboard welder is 99% done!

Great Job, very impressive.
I like the idea of not welding from your main engine alternator also. If you carried a spare external voltage regulator and some sort of quick connect you also have a back up alternator on board. Very nice project. Thanks a lot, now I have another item on my never ending "to do list".

Jeff
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post #10 of (permalink) Old 12-07-2000, 11:43 PM
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Re: Onboard welder is 99% done!

Just one question? I know that you said it was not regulated but arent all chrysler Alts internaly regulated? I could be wrong. Or when you rebuilt it you just got rid of the regulator? Food for thought!



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