glad you got your cylinders made. i've been thinking of making my own slip
roller. Not that i need one right know. Any chance you could put photos of
your one hour model up in the dropbox.

--
Doug Arthurs
Kent Bridge, On

Check out my website at http://www.netrover.com/~arthurs/
"cdg" wrote in message
om...
Hi,

I have a 16" x 48" piece of 304 Stainless Steel 1/8" perforated sheet
metal, about 1/16" (.065) thick. I want to bend it into a 15"
diameter x 16" high cylinder. Is this something that can be done
(manually) without any special machinery?

The method I had in mind would be to obtain a 16" length of 15"
diameter pipe (or perhaps bolt a few 15" diameter wheels together to
form a 16" high cylinder). This would be bolted or clamped to a fixed
object. I would then clamp one (16") side of the sheet metal to the
pipe with a piece of bar stock and a couple of c-clamps. Another
piece of bar-stock would be clamped to the other side of the sheet
metal, and I would then slowly bend the 48" length around the pipe.

But then, what can I do to retain the cylindrical shape? I assume
that 1/16" stainless will want to spring back with a vengeance. I've
considered clamping it in place and then hammering and/or heating it.
I've considered using a smaller pipe and bending slightly past the
diameter I need. But I don't know how much smaller a diameter to use.
I need to have a reasonably "perfect" circle, and I don't want any
kinks.

Is this a practical thing to attempt, or should I try to make friends
with someone who has a slip-roll forming machine.

Any advice would be appreciated.