Re: [CAD_CAM_EDM_DRO] RE: Ian, waxing pensive "pattern making"

Alan Marconett KM6VV wrote:

>
> Anne,
>
> It's called a Cupola, and they're still used by amateur foundries here:

Nope, a Cupola has an alternating coke and scrap charge & runs continuous process.

This was just a furnace - put scrap in a (in this case welded steel) crucible,
heat it up with charcoal and a blower, and pour the molten aluminum into the
mold. Batch process.