Building a vacuum assisted caster for silver and gold.

[T P]

why does the vacuum chamber have to be an aluminum box?   A pc. of large diameter steel pipe with a suitable pc of plate welded to the bottom would be much easier to find.  A circular chambe would also be subject to less stress when the vacuum is pulled on the chamber.

[T P]

here are attached photos of the table I built.  the last photo is of the tuyere,  a safety valve if the bottom of the flask fails and molten metal is sucked into the system,  the plastic bottom melts out rather then plugging the machine

[Debbie K]

Darn it! Can't view the pictures. I really want to see what you made, especially with the safety feature.

I've had problems getting on to this site for the last few days; anyone else?

Debbie K

[T P]

here are attached photos of the table I built.  the last photo is of the tuyere,  a safety valve if the bottom of the flask fails and molten metal is sucked into the system,  the plastic bottom melts out rather then plugging the machine

[Debbie K]

Thanks for the pictures! I like the valve on the bottom. I might have to end up making one in the future if the commercial one gives out, so this is good to know.

Debbie K