Alt-BEAM Archive

Message #10085



To: beam@sgiblab.sgi.com
From: "Sathe Dilip" sathe_dilip@bah.com
Date: Fri, 11 Feb 2000 18:05:54 -0500
Subject: [alt-beam] Re: Light Duty Electric Welder


After some search on the web I found this:

http://www.coslink.net/personal/dhartman/welder.htm

See if it is of any use.

Dilip
------------------------

Richard Piotter wrote:
>
> 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).
SNIP
----------------------------------------------------------------------
The early bird may get the worm, but the second mouse gets the cheese.
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10086 Fri, 11 Feb 2000 15:14:25 -0800 [alt-beam] Re: Light Duty Electric Welder beam@sgiblab.sgi.com Bruce Robinson Richard Piotter wrote:
>
> 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).

Richard, there are a number of small wire-feed MIG welders on the market
these days. They are small, sort-of portable (40 - 80 lb), and plug into
a conventional 110 VAC / 15A circuit. You'll find them in a conventional
style, which require external argon gas bottles, or in a flux-core
gas-less version.

Price wise, typical flux-core units are as low as $350 CDN (say $250
US). Gas units are triple the price (and you have to buy the argon
separately). On the other hand, flux-core wire is 3 times the price of
solid core wire. I've seen these units on sale for as little as $150 US,
so shop around.

For casual work, the flux core is the way to go. However, it's pretty
much limited to working with steel & iron.

The gas version can be used on aluminum and stainless as well (with
appropriate wire). I doubt you could use them on brass or copper --
brazing is better for that.

Don't forget, you are getting way up in temperature with these units.
You have to worry about sparks, high temperature, high levels of UV and
related hazards to your eyes. Protective gear is definitely a
requirement. Not for use in a wood-frame house :) Ventilation is
absolutely essential (the flux is toxic, and the argon will asphixiate
you.

I have also seen a very small "stick" arc welder that uses special 1/16
welding rods. Price was about $130 US. Stick welders, however, produce
more welding heat than the wire feed units.

Brand names are Lincoln, Miller (the two biggies in the field), Century,
and Campbell-Hausfeld.

Shop around a bit. These units can only weld up to 3/16" plate. You may
find a good second-hand one that the owner outgrew.

Good luck,
Bruce



10087 Fri, 11 Feb 2000 17:51:10 -0600 [alt-beam] Re: Light Duty Electric Welder beam@sgiblab.sgi.com Richard Piotter Good Idea! I'm hoping to get something I don't have to worry abouyt
charging, but then again, it's portable!

The first electromagnet I made was back when I was 4 or 5. I got a
tractor battery (basicly a high quality car battery) and made the coil,
but I used FENCE wire since I didn't have anything thin!!! HAHAHA!!!
That stuff was RED!!!

I'll have to see If I can't get a spare car battery or two. for light
duty welding, it might work!

Still, is there any 120 volt device to do the same?

Thanks!


Dane Gardner wrote:
>
> 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

--


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

-- Make Money by Simply Surfing the Net or responding to E-Mail!!!
-- Click below!!!

http://www.alladvantage.com/go.asp?refid=ATL147
http://www.spedia.net/cgi-bin/dir/tz.cgi?run=show_svc&fl=8&vid=329630



10088 Fri, 11 Feb 2000 19:03:25 -0800 [alt-beam] Re: Light Duty Electric Welder beam@sgiblab.sgi.com Laura Malinowski
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You probably are considering a mini mig welder. They are really nice to
have around and can do most jobs from small metal frames to putting a stop
sign in the floor of your car where that big hole was. A relatively
inexpensive one is available through Home Depot. Do your research first
because they usually don't have a clue. There are several types 1) argon
gas (my favorite) 2) flux core. Also welding supply houses and welding
shops sometimes have small used units for sale. What is your budget?
Rob M.

Richard Piotter wrote:

> 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
>
> -- Make Money by Simply Surfing the Net or responding to E-Mail!!!
> -- Click below!!!
>
> http://www.alladvantage.com/go.asp?refid=ATL147
> http://www.spedia.net/cgi-bin/dir/tz.cgi?run=show_svc&fl=8&vid=329630


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content-transfer-encoding: 7bit



You probably are considering a mini mig welder. They are really nice to
have around and can do most jobs from small metal frames to putting a stop
sign in the floor of your car where that big hole was. A relatively inexpensive
one is available through Home Depot. Do your research first because they
usually don't have a clue. There are several types 1) argon gas (my favorite)
2) flux core. Also welding supply houses and welding shops sometimes have
small used units for sale. What is your budget?

Rob M.

Richard Piotter wrote:

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">http://richfiles.calc.org">http://richfiles.calc.org

-- Make Money by Simply Surfing the Net or responding to E-Mail!!!

-- Click below!!!

http://www.alladvantage.com/go.asp?refid=ATL147">http://www.alladvantage.com/go.asp?refid=ATL147">http://www.alladvantage.com/go.asp?refid=ATL147

http://www.spedia.net/cgi-bin/dir/tz.cgi?run=show_svc&fl=8&vid=329630

">http://www.spedia.net/cgi-bin/dir/tz.cgi?run=show_svc&fl=8&vid=329630">http://www.spedia.net/cgi-bin/dir/tz.cgi?run=show_svc&fl=8&vid=329630



--------------3A99AC42F81509AF703ACCDC--



10089 Thu, 10 Feb 2000 18:16:48 +0800 Re: infra red Seamus Allan
> To do this you would probably need to use DMTF (Digital multi-tone
> frequancy). It basically makes a different signal for each switch. You
will
> need a decoder and encoder chip, and a good circuit (can't actually think
of
> any that I have here at the moment). I did see one in a optics book, so if
> no-one can help you, just email me and I will look in the book and draw a
> schematic fo it.
>
> Hope to be helpful,
> Seamus Allan
>
> seamus_allan@inet.net.nz
> --------------------------------------------------------------------------
--
> --------------------------------------------------
> The empire of Rome was accomplished by eleiminating all of the opposition
> --------------------------------------------------------------------------
--
> --------------------------------------------------
>
> ----- Original Message -----
> From: HENDO
> To:
> Sent: Monday, February 07, 2000 8:31 PM
> Subject: infra red
>
>
> > Hi guys and girls,
> >
> > I was wondering if anyone had a circuit for a short range remote control
> > (30cm) that uses only one emitter and one receiver diode with up to 10
> (pref
> > 5, less will do) switches.
> >
> > thanks
> >
> > James
> >
> >

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