Alt-BEAM Archive

Message #10077



To: BEAM beam@sgiblab.sgi.com, Twin Cities Robotics Group tcrobots@orbis.net
From: Richard Piotter richfile@rconnect.com
Date: Fri, 11 Feb 2000 15:08:18 -0600
Subject: [alt-beam] Light Duty Electric Welder


Hello. I am interested in purchasing or building a small electric welder
that would opperate off of a 120 volt line and use fairly thin welding
rod for point or light duty arc welding of light metals of low
thickneses (brass, iron, steel, copper sheet and rod primarily).

Does anyone know where such a small welder would be avaliable for
purchase, or if there are plans ont eh internet for such a device. I'm
getting tired of using solder for all my mechanical joints. I mean, it's
great for most stuff, but often, a small point weld is sufficient for a
frame! I've damaged motors by heat before. Nihon Mini Motors (BG Micro)
for that matter!!!

Any advise would be welcomed!

Thanks!
--


Richard Piotter The Richfiles Robotics & TI web page:
richfile@rconnect.com http://richfiles.calc.org

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10078 Fri, 11 Feb 2000 13:15:12 -0800 (PST) [alt-beam] Re: ...yes, two more new questions..... beam@sgiblab.sgi.com "Leonardo Boulton F."

> solar cell, to I use Ohms Law to keep the circuit in balance, i.e.,
> functioning? Would connecting, say three caps of n value, in series
> have
> better performance than one cap of 3n value? .......I'm very sure no
> one
> has thought of these ideas before..........Thanks......JWS.

3 caps on n farads in series is equal to 1/3 caps of n farads.

=====
I'm here... http://geocities.com/l.boulton
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10079 Fri, 11 Feb 2000 15:42:29 -0600 [alt-beam] Re: aggravating little pager motors.. beam@sgiblab.sgi.com Brad Guillot Once i got some from allelectrons and this worked, but it was slow and
painful....I got some from electronic goldmine and,-well i'm still
looking for a 5000 pound press.

Elmo wrote:
>
> Guys..... Trust me here....
>
> Your spending a lot of time and effort when you dont have to.
>
> We all know how hard those weights are. I am impressed that someone has actually
> managed to grind one down. I used a bench grinder on one once and i only just
> scratched it, no actualy metal loss. Use that metals hardness against it. In less
> than three turns of a vice handle you will be free of those pesky weights!
>
> William.....I will put my money where my mouth is. If you try this and stuff your
> motor then let me know and i will replace it! If you do it and it works then
> please let everyone one else know. I think its the best method becuase its _so_
> quick and safe for the motor.
>
> Elmo out
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10080 Fri, 11 Feb 2000 13:59:35 -0800 [alt-beam] Re: Light Duty Electric Welder "Dane Gardner" When I was in the Army, I drove a tank. They don't usually have electric
welders out in the field, and one night I broke a motor mount off the hull.
I used 8 batteries to weld it back on...and it never came off again. I
linked 4 sets of the, deep cycle 24V tank batteries (I don't see why you
couldn't use car batteries), in series. I then connected those four sets in
parallel. Worked like a charm. I was lucky that someone had welding rod
handy. You can probably use a lot less batteries than what I used...I need
the power to weld to 2 inch thick armor. Give it a try sometime.


Dane Gardner


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