On Jul 31, 12:39*pm, "J. Clarke" wrote:
On 7/31/2010 11:14 AM, J. Clarke wrote:

On 7/31/2010 10:30 AM, Steve Lusardi wrote:
Simple, make the ring 1/8 small. Roll to shape and butt weld. Dress with
a grinder and heat with a rose bud acetylene torch . Set in place and
let it cool. No smoke, no noise and no problems.

Can the whole two foot diameter wheel be brought to temperature at once
with a rose bud torch?

Thinking about it, this is probably the way to go. *Push me off center
to get an oxyacetylene rig.

Or build a Morris Dovey solar collector and heat it up parabolically.

R