[TheForge] 8" hemispheres

[Bruce Freeman]

Don,

Unfortunately, Maegan Crowley just moved to Colorado.  She had a
massive press in her shop that could possibly have been used to mash out
such hemispheres in one heat.  If she didn't move it with her ($$$!)
then it's still at Peters Valley...

Tom Ryan (Brookly area) also has an enormous press.  I don't know
whether it's suitable for this sort of thing, but you might check with
him.  

In either case, you'd need to create appropriate tooling, but that
might not really be so hard to do.

Have you considered welding the edges of a couple of disks together and
inflating them, hot, like Elizabeth Brim demonstrates?  It's pretty
low-tech and I'll bet it would give you most of the shaping you need,
even though you might have to finish it off by hand.

Bruce
NJ

>>> PlumDon at aol.com 10/29/2004 4:36:09 AM >>>
 
In a message dated 10/28/2004 11:54:22 PM Eastern Standard Time,  
frosty at customcpu.com writes:

Regardless, getting a dozen hemis anywhere not off the shelf isn't 
going to
be cheap.



I fear you are exactly right, frosty. It appears my expectations
regarding  a 
rapid and inexpensive solution to getting these bowls were too high. I
will  
continue to pursue a pressing or spinning process, however. Maybe I can
find a 
 metalspinner who already has an 8" mandrel.  By the way, regarding the
 
metalspinning site you recommended...do you have to be a Yahoo user to
get on  it? 
Everywhere I went it looked like I had to sign up for Yahoo. 
 
Kindest thanks
_______________________________________________
Manage membership or unsubscribe at:
http://mailman.qth.net/mailman/listinfo/theforge 
theforge mail list group photo site is
http://www.photoaccess.com 
Login:  blacksmithblacksmith at hotmail.com 
password:  anvil
___________