[TheForge] copper balls

[Andy Vida]

Michael Horgan wrote:
> 
> True, Andy... unless you have a big back yard.  Conic used to do titanium
> tanks for the Saturn V this way out back of my shop in San Diego.  Noisy,
> but fun to watch.

	I recall, way back in engineering school, that extremely deep
	draws by using an appropriately shaped blast lens that focuses
	the wave front.   The lens sits above the charge and reflects
	the blast energy that is vectored upward and away from the
	work back down into the die.

	That must be fun work.  Anything that goes boom.