On Jan 8, 11:21*pm, "Maxwell" #$$9#@%%%.^^^ wrote:
"Monk" wrote in message


It's also not possible to green sand cast over a wax investment. Even if it
were simple enough to sculpt your heads out of wax, which it's not, you
would have to investment cast them.

While sand directly over wax isn't practical there are hybrid methods
of lost wax and sand that the hobby casters can do with good results.
As for being simple to sculpt the heads in wax ...........depends on
your definition of simple.


Tooling cost for wax or foam investment casting would be
too prohibitive.

If your thinking conventional production practices you might be right,
but there are home brew methods that while slower work just fine. We
aren't talking GM production numbers or that level of automation.
====================
Leon McAtee