This is Sandor of Ti-Research. I’m sorry to hear about your losses in a wildfire.
As in your post and related responses some machine specifics were addressed, I think a few words of clarification are in order here.
High melting metals are known to solidify very fast. Cast is designed to handle high melting metals, eg. Pt, hence our centrifugal approach and overall stainless steel design. Despite of this, it is widely used for Ag and Au as well…
I have designed Cast to keep the operator on the safe side – at all times. I was not driven by OSHA regulations but by personal attitude (there’s a secret relation between product liability and a good sleep at night). Unlike most common broken-arm centrifugal casting machines all rotating parts of Cast are built inside a self-contained stainless steel cabinet.
In the past, we’ve had the opportunity to demonstrate platinum casting at a Stuller workshop twice. Once we had to deal with a cracked mold, but gave a try. Of course there was spill, and of course there was an ‘Oooh’ in the audience. But: without the safe design the first row would have become a case for paramedics. The cracked mold highlighted another feature: only those cavities affected by the crack will generate spill. All other cavities will fill. If you are familiar with the broken arm molds you might figure out the result of a cracked mold yourself.
@royjohn: A final word to the selection of materials: I am not aware that we have sold any replacement flasks so far – since 2001.
I agree with @royjohn and @PaigeTools: what you want to do determines the objective. If you intend to cast silver once in a while then Delft Clay will do. If you intend to cast a product line of highly detailed platinum jewelry then you’ll need a set of sophisticated machines. Cast covers the entire range between the two for small quantities. You might make up your mind watching the video:
or with the tutorial on Casting an Orchid Flower:
or our business listing:
Ti-Research is not a charity project but you are welcome to contact me offline to discuss options of a late disaster relief. I’d be interested in the left-overs if available for QA reasons.