Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Old January 30th 04, 08:29 PM
jim
 
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Default welding, cutting

i saw a show on tv, designing, making fancy motorcycles: the guy doing
the cutting had a long beard on and looked like an old time motorcyle
rider.. he had what looked like a 8 in. wide by 30 in. circle pad(it was
probably spun on a lathc or something to get it to that shape from
sheetmetal and welded to gether and then he drawed the design for some
m/c fender on it and then used a torch to cut the shape.. it had a very
small flame on it(no dials to turn like an acethelen cutting torch...
there was one hose on it about 1 in or so and that was it.. i could not
see if he had a ground wire on the metal he was cutting, there was no
extra flame when he cut, just looked like the same size flame before he
put it to the metal as when cutting??? does anyone know what he might
have been using.. it looked to easy to do... he just moved the torch?
around like an artist would move a pencil and the metal what was waste
was just falling off... looked like a pretty good way of doing some work
if i could find out what he did and how to do it.....

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Old January 30th 04, 09:16 PM
Walker
 
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Default welding, cutting

It was a plasma cutter.

Walker

"jim" wrote in message ...
i saw a show on tv, designing, making fancy motorcycles: the guy doing
the cutting had a long beard on and looked like an old time motorcyle
rider.. he had what looked like a 8 in. wide by 30 in. circle pad(it was
probably spun on a lathc or something to get it to that shape from
sheetmetal and welded to gether and then he drawed the design for some
m/c fender on it and then used a torch to cut the shape.. it had a very
small flame on it(no dials to turn like an acethelen cutting torch...
there was one hose on it about 1 in or so and that was it.. i could not
see if he had a ground wire on the metal he was cutting, there was no
extra flame when he cut, just looked like the same size flame before he
put it to the metal as when cutting??? does anyone know what he might
have been using.. it looked to easy to do... he just moved the torch?
around like an artist would move a pencil and the metal what was waste
was just falling off... looked like a pretty good way of doing some work
if i could find out what he did and how to do it.....



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Old January 31st 04, 02:25 AM
Mike Bartman
 
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Default welding, cutting

In article , says...
i saw a show on tv, designing, making fancy motorcycles: the guy doing
the cutting had a long beard on and looked like an old time motorcyle


The show was "Southern Choppers". The company was Milwaukee Iron, in
Lynchburg, Virginia, and the guy's name is Gary...though his friends
call him "Wolfie" according to the show. Their page is at:

http://www.milwaukeeironinc.com/

rider.. he had what looked like a 8 in. wide by 30 in. circle pad(it was
probably spun on a lathc or something to get it to that shape from
sheetmetal and welded to gether and then he drawed the design for some


They didn't show the making of the blank, but spinning two disks seems
like a good way to get the halves. They did weld them together, then
spun the result on a bar to let two guys grind the weld seam smooth.
The grinding was going on in at least one scene.

m/c fender on it and then used a torch to cut the shape.. it had a very
small flame on it(no dials to turn like an acethelen cutting torch...
there was one hose on it about 1 in or so and that was it.. i could not
see if he had a ground wire on the metal he was cutting, there was no
extra flame when he cut, just looked like the same size flame before he
put it to the metal as when cutting??? does anyone know what he might
have been using.. it looked to easy to do... he just moved the torch?


It was a plasma cutter. Basically an arc with a compressed gas stream
I believe (I'm not an expert, I just saw the show and have been doing
some reading ;^). They let you cut a very thin kerf through metal,
quickly and accurately...with some skill. Several inches per second
on thin sheet steel are possible with some rigs. You can also get CNC
cutters that use them...cheapest I've seen is from ShopBott...under
$8000 for the basic machine (minus plasma cutter), that will handle
8'X4' sheets and cut up to 3/8" thick metal accurate to a few
thousandths of an inch.

Yes, Wolfie made it look easy, but he's been doing it for years too. I
believe the main trick is to keep the cutter a constant distance from
the metal...I've seen some with a little coil spring-like spacer
around the tip to make this easy when cutting nothing but flat sheet.

around like an artist would move a pencil and the metal what was waste
was just falling off... looked like a pretty good way of doing some work
if i could find out what he did and how to do it.....


Most welding supply places that carry MIG and TIG will have plasma
cutters. They start under $1000, but not all that far under $1000
from what I've seen.

-- Mike B.

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Old January 31st 04, 02:31 AM
jim
 
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Default welding, cutting

Walker wrote:

It was a plasma cutter.

Walker

"jim" wrote in message ...
i saw a show on tv, designing, making fancy motorcycles: the guy doing
the cutting had a long beard on and looked like an old time motorcyle
rider.. he had what looked like a 8 in. wide by 30 in. circle pad(it was
probably spun on a lathc or something to get it to that shape from
sheetmetal and welded to gether and then he drawed the design for some
m/c fender on it and then used a torch to cut the shape.. it had a very
small flame on it(no dials to turn like an acethelen cutting torch...
there was one hose on it about 1 in or so and that was it.. i could not
see if he had a ground wire on the metal he was cutting, there was no
extra flame when he cut, just looked like the same size flame before he
put it to the metal as when cutting??? does anyone know what he might
have been using.. it looked to easy to do... he just moved the torch?
around like an artist would move a pencil and the metal what was waste
was just falling off... looked like a pretty good way of doing some work
if i could find out what he did and how to do it.....

yes, thats what it was, found a picture of one from another post..
thanks./..


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