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[Jay West]

It was written...
>> *Secrets of Building a Plastic Vacuum Forming Machine* may also be a
>> good book
>> for the shelf. http://www.lindsaybks.com/dgjp/djgbk/vacf/index.html
>
> I'll have a look, thanks!  One of my goals is to stick with technology we
> can (theoretically at least) do at home with a minimal investment.  If I
> spend a ton of time buying or building equipment, I start to feel like I
> need a business plan :-/.

Ok, total neophyte input here on my part. But most of the techniques I've 
seen involve doing the casting inside a small dixie cup. If the problem is 
air bubbles, what about using a common (at least back in the 70's) device 
that many people still have in their kitchens... a "seal-a-meal". Mine has a 
vacuum attachment, to suck the air out of the container. So what about 
putting the cast inside a mason jar, to which you've hooked up the 
seal-a-meal (or maybe the backend of an aquarium pump) to suck out all the 
air and let the cast set in a vacuum?

Maybe a nutball idea, as I haven't a clue about this stuff. Just a thought.

Jay