Niles, There is an abundance of available from Platinum
Guild International. Many papers are available with the latest
research on platinum casting, in the 2002 Santa Fe Symposium book.
There are several research articles that address sprue size, casting
temperatures, rotational speed and sprue configuration as well as
different investments. You will also need a hydrogen/oxygen torch.
Acetylene is not the fuel of choice for melting this metal. The
Neycraft Motocast Platinum caster is a great choice for several
reasons. First it has an enclosed casting chamber for safety. (very
important). It also has variable speeds from 350-450 rpm. The
slower speeds help in getting smoother castings with heavier pieces.
You will also need to use a high temp/strength investment and ALWAYS
ALWAYS use Platinum Safety glasses. The metal melts at white hot and
will damage your eyes if you don't. If you need further assistance
you can call our technical support line at 1-800-545-6566 and ask for
the Technical Support department. We also have several articles we
can send you which may help.
Thanks for listening,
Phillip Scott G.G.
Technical Support & Sales