Progress (circa 2013)
This has been a long time in the making. This has been a long time coming. This is a culmination of all my research and effort. From here, it only gets better.
I carved some models from wax.
I casted them in plaster of paris with some play sand 1:1 ratio (by weight)
I cured the plaster in the oven for 4 hours at 250 degrees.
This allowed the wax to melt out and the cast to dry.
Afterwards, I heated the mold up in my foundry, to glowing red.
I headed up the aluminum to glowing orange. A very satisfying color.
I poured, cooled for an hour, cracked the mold and found this bad boy.
This next cast is sand and plaster 1:1 ratio by volume.
I suspended them with toothpicks, adding a larger chunk of wax that will allow it to pour easier and give it a fluke to suck in aluminum as it cools.
These are wax carvings provided by a local artist.