Thought you might be interested in seeing this, if you have not seen it before.

It is a rotational molding jig which uses a vacuum formed (phlatformer) mold to produce shell moldings of just about anything really.

http://www.youtube.com/watch?v=Ok4fAqjK ... r_embedded

http://www.studiomyfirst.co.uk/

Tweakie. Attached files

 

Roto-casting without a motor is not fun. I've done it to many times myself. :ugeek:
To do it by hand you need a casting plastic that can setup fast.
Casting plastics that setup fast aren't as strong as slow cure. They get brittle over time.

The real advantage to roto-casting is you don't use a lot of material.
You end up with a very light casting. This would be great for making pilot busts.

If he were to add a geared down motor it would make things a lot better.
Jamco electronics sells geared down motors for cheap.
It is a neat little device to have in the studio.

Cheers.
George H. Boyd

 

Your next project, Mark? After the other thing of course, nudge, nudge, hint, hint!!!