lost wax casting: what material is the best for pouring metal into? Answered
So I made a rad Yoda wax figurine recently and I'm looking into converting him into a aluminum via the lost wax casting method. I've seen some other instructables on casting the metal into plaster of paris, but that doesn't seem to preserve the very fine details that I want. There are a few other methods I've seen on other forums, like mixing fine sand with plaster and making a ceramic mold...I have even wackier ideas like using fireproof cement, but I haven't seen anything online to support using it...what other ideas can you think of that don't involve expensive investment powders I have to buy online?