[TheForge] oxy-propylene, propane tips and air-arc

[Ben Barrett]

Awesome news, that is just the sort of thing I was hoping to hear!!
I can sacrifice a little bit of time to save a bunch of money, at this
point.  No employees, just trying to screw around and teach myself,
get hours  in hammering and working metal in general :)

Both ideas sound perfect!  Know anything about multiple-burner versions, even?
Kinda makes sense, if I wanted to make a 3-burner model that all sort
of pointed slightly inward, say for a convex surface or edge/tip of a
piece, the fuel is cheap enough, drilling a jet/nozzle or three isn't
too bad, and the whole head could be on a quick-release for swapping a
single smaller (or larger)
 jet.

Now that I've struck gold once, let me just ask this:
Does anyone have suggestions for a multi-axis third arm?
6-axis, preferrably, what would be great is not quite a robot, I would
like to be able to lock certain (or all) joints so that a piece (or
tool) could be locked to a place or a single axis, or held steady,
then easily unlocked to be moved around.  Without locking any axis or
carrying much weight at all, a swing-arm lamp might be a start.
Yeah, I'm talking totally junk-yard, scrapper stuff here, things that
are prolly a waste of time to many folks on the list... heh heh.

thanks,

ben


On 6/23/07, Peter Fels And Phoebe Palmer <artgawk at thegrid.net> wrote:
> Hey Ben:
> Carl Jennings, may he rest in peace, Had a torch he made from an
> old 50s style metal blow dryer , some pipe and a propane jet and
> needle valve. He had it rigged so that it'd mount on an
> adjustable stand or could be hand held. It wasn't fast as a
> rosebud, but it was cheap to build and run. He'd set it on the
> stand, focused on the spot next to the one he was working on so
> when the part he was hammering cooled he could just move the hot
> spot over to his stake.
> Yes, using, say firebricks, to make a backing , corner or box to
> heat in,is much more efficient and quicker.
> Helmut Hillenkamp made a dome shaped shell lined with kaowool
> that had a simple burner sticking out the top. He could use it
> conventionally on a firebrick table or pick it up and plunk it
> over larger work....pete

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