Making the cast mold

Investment powder in water Adding investment powder to the water.

Vacuum the mixture

The mixture of investment powder and water under the belljar of the vacuum machine. This is to take the air out of the mixture.
Close up of the mixture surface A close up view of the mixture under the belljar. You see the air being pulled out.
Pouring mixture in the cylinder  The Mixture pouring into the cylinder with the wax bracelet.

The cylinder goes under the belljar

 

The mixture in the cylinder again under the vacuum. 

Remove base from cylinder Now the mixture has hardened the base is removed.