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General Metalworking - All aspects of working with metal.
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Posted by Martin H. Eastburn on May 21, 2008, 9:51 pm
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There are people that haul 3 batteries and have special circuits
to charge each in time.
Then they, when climbing rocks and weird stuff - bend a fender or breaks
something - yank out a Ready Welder and weld up the break.
One could set up a wind mill and weld when the wind was there or use
batteries and charge them up with said DC motor/generator just like
cars did it in the 50's.
Martin
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/
Bruce in Bangkok wrote:
> wrote:
>
>> ol' bubba here wants to build a nice cheap DC welder, preferably that
>> outputs "pure DC" (not rectified AC). Lincoln used to make such
>> machines, essentially an AC motor driving a DC generator head. according
>> to numerous sites, most (maybe all?) DC motors can be 'driven' and used
>> as generator heads.
>>
>> I have three DC motors sitting gathering dust, and -plenty- of heavy
>> angle iron for the frame. plus misc other components, like a nice
>> rheostat, and the leads. might have to break down and buy a lovejoy
>> coupling...
>>
>> take a quick look at my DC motors here:
>>
>> http://machines.freehostia.com/dc_motor_as_generator/
>> dc_motor_as_a_generator
>>
>> which of the three would be my 'best bet' for this idea?
>>
>> sure, I'd 'like' it if it put out about 300 amps (and less, too) but
>> I'll probably settle for what I can get...maybe 150 amps out?
>>
>> this doable?
>>
>> ps-please, no 'insurance adjuster' or 'fire inspector' type dire warnings
>>
>> thanks, guys,
>>
>> toolie :-)
>>
>> - -
>> replies by e-mail, if any, please remove the weirdstuff from my address
>> before you click 'send' - thanks :-)
>> - -
> First of all it is do'able. Popular Mechanics had a long article,
> years ago, about building a welding machine using a surplus aircraft
> DC generator. I have also seen an article on the web about doing the
> same thing - unfortunately I can't find the URL. Try googling various
> combination of welder, generator, home made, etc., and I'm sure you
> can find it.
>
> The only problem is that you need a low voltage, high amperage
> generator, say 24 volts @ 300 amps.
>
>
> Bruce-in-Bangkok
> (correct Address is bpaige125atgmaildotcom)
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Posted by Martin H. Eastburn on May 22, 2008, 6:00 pm
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http://www.youtube.com/watch?v=L68rZh6NnUk
Not me but nice young one helping Dad. Ready welder on 2 batteries.
And charged in the shop.
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/
Martin H. Eastburn wrote:
> There are people that haul 3 batteries and have special circuits
> to charge each in time.
>
> Then they, when climbing rocks and weird stuff - bend a fender or breaks
> something - yank out a Ready Welder and weld up the break.
>
>
> One could set up a wind mill and weld when the wind was there or use
> batteries and charge them up with said DC motor/generator just like
> cars did it in the 50's.
>
> Martin
>
> Martin H. Eastburn
> @ home at Lions' Lair with our computer lionslair at consolidated dot net
> TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
> NRA Second Amendment Task Force Charter Founder
> IHMSA and NRA Metallic Silhouette maker & member.
> http://lufkinced.com/
>
>
> Bruce in Bangkok wrote:
>> wrote:
>>
>>> ol' bubba here wants to build a nice cheap DC welder, preferably that
>>> outputs "pure DC" (not rectified AC). Lincoln used to make such
>>> machines, essentially an AC motor driving a DC generator head.
>>> according to numerous sites, most (maybe all?) DC motors can be
>>> 'driven' and used as generator heads.
>>>
>>> I have three DC motors sitting gathering dust, and -plenty- of heavy
>>> angle iron for the frame. plus misc other components, like a nice
>>> rheostat, and the leads. might have to break down and buy a lovejoy
>>> coupling...
>>>
>>> take a quick look at my DC motors here:
>>>
>>> http://machines.freehostia.com/dc_motor_as_generator/
>>> dc_motor_as_a_generator
>>>
>>> which of the three would be my 'best bet' for this idea?
>>>
>>> sure, I'd 'like' it if it put out about 300 amps (and less, too) but
>>> I'll probably settle for what I can get...maybe 150 amps out?
>>>
>>> this doable?
>>>
>>> ps-please, no 'insurance adjuster' or 'fire inspector' type dire
>>> warnings
>>>
>>> thanks, guys,
>>>
>>> toolie :-)
>>>
>>> - -
>>> replies by e-mail, if any, please remove the weirdstuff from my
>>> address before you click 'send' - thanks :-)
>>> - -
>> First of all it is do'able. Popular Mechanics had a long article,
>> years ago, about building a welding machine using a surplus aircraft
>> DC generator. I have also seen an article on the web about doing the
>> same thing - unfortunately I can't find the URL. Try googling various
>> combination of welder, generator, home made, etc., and I'm sure you
>> can find it.
>>
>> The only problem is that you need a low voltage, high amperage
>> generator, say 24 volts @ 300 amps.
>>
>>
>> Bruce-in-Bangkok
>> (correct Address is bpaige125atgmaildotcom)
>
>
> ----== Posted via Pronews.Com - Unlimited-Unrestricted-Secure Usenet
> News==----
> http://www.pronews.com The #1 Newsgroup Service in the World! >100,000
> Newsgroups
> ---= - Total Privacy via Encryption =---
----== Posted via Pronews.Com - Unlimited-Unrestricted-Secure Usenet News==----
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---= - Total Privacy via Encryption =---
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Posted by RoyJ on May 21, 2008, 9:57 pm
Please log in for more thread options If you insist on DC output (native mode), you need to find a 24 to 32
volt DC motor where all the current goes through the brushes.
Best way is to find the aircraft generators, they are getting hard to
find but some are still floating around. I have a spare one, price would
be reasonable, shipping the 60 or so pounds is NOT cheap.
dave wrote:
> ol' bubba here wants to build a nice cheap DC welder, preferably that
> outputs "pure DC" (not rectified AC). Lincoln used to make such
> machines, essentially an AC motor driving a DC generator head. according
> to numerous sites, most (maybe all?) DC motors can be 'driven' and used
> as generator heads.
>
> I have three DC motors sitting gathering dust, and -plenty- of heavy
> angle iron for the frame. plus misc other components, like a nice
> rheostat, and the leads. might have to break down and buy a lovejoy
> coupling...
>
> take a quick look at my DC motors here:
>
> http://machines.freehostia.com/dc_motor_as_generator/
> dc_motor_as_a_generator
>
> which of the three would be my 'best bet' for this idea?
>
> sure, I'd 'like' it if it put out about 300 amps (and less, too) but
> I'll probably settle for what I can get...maybe 150 amps out?
>
> this doable?
>
> ps-please, no 'insurance adjuster' or 'fire inspector' type dire warnings
>
> thanks, guys,
>
> toolie :-)
>
> - -
> replies by e-mail, if any, please remove the weirdstuff from my address
> before you click 'send' - thanks :-)
> - -
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Posted by Martin H. Eastburn on May 22, 2008, 9:42 pm
Please log in for more thread options Look at my post prior to this one you wrote - yours is out of sequence
and missed mine. A movie with two batteries.
Off roaders don't haul 3 or 4 batteries for welding. They use 2 or 3 max.
Martin
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/
RoyJ wrote:
> If you insist on DC output (native mode), you need to find a 24 to 32
> volt DC motor where all the current goes through the brushes.
>
> Best way is to find the aircraft generators, they are getting hard to
> find but some are still floating around. I have a spare one, price would
> be reasonable, shipping the 60 or so pounds is NOT cheap.
>
> dave wrote:
>> ol' bubba here wants to build a nice cheap DC welder, preferably that
>> outputs "pure DC" (not rectified AC). Lincoln used to make such
>> machines, essentially an AC motor driving a DC generator head.
>> according to numerous sites, most (maybe all?) DC motors can be
>> 'driven' and used as generator heads.
>>
>> I have three DC motors sitting gathering dust, and -plenty- of heavy
>> angle iron for the frame. plus misc other components, like a nice
>> rheostat, and the leads. might have to break down and buy a lovejoy
>> coupling...
>>
>> take a quick look at my DC motors here:
>>
>> http://machines.freehostia.com/dc_motor_as_generator/
>> dc_motor_as_a_generator
>>
>> which of the three would be my 'best bet' for this idea?
>>
>> sure, I'd 'like' it if it put out about 300 amps (and less, too) but
>> I'll probably settle for what I can get...maybe 150 amps out?
>>
>> this doable?
>>
>> ps-please, no 'insurance adjuster' or 'fire inspector' type dire warnings
>>
>> thanks, guys,
>>
>> toolie :-)
>>
>> - -
>> replies by e-mail, if any, please remove the weirdstuff from my
>> address before you click 'send' - thanks :-)
>> - -
----== Posted via Pronews.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.pronews.com The #1 Newsgroup Service in the World! >100,000 Newsgroups
---= - Total Privacy via Encryption =---
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Posted by Ignoramus12247 on May 21, 2008, 10:22 pm
Please log in for more thread options The easiest route to take would be to buy a Miller Shopmaster 300
CC/CV AC/DC from me.
i
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