Just curious, I've heard a lot lately about 3D printing plastic and metals. Has anyone heard anything about 3D printing clay? Seems like if it can be done for plastics and metals that it could be done for clay as well.
Next thing I need to figure out is how much plaster to mix. The volume of my box minus the volume of the bowl I'm making is 864 cu in which is 3.74 gallons which is 31.3 lb of water. For that amount of water I need 44.7 lb of plaster. But that will make too much because adding the plaster to the water will increase the total volume. So how much water and plaster do I need to fill my 3.74 gallon box?
I am trying to make my first mold and have made a wood box to surround the mold. I have some Murphy's Oil Soap to use as a release agent on the inner part of the mold. I was wondering if I could line my wood box with a black plastic garbage bag so the USG No 1 Pottery Plaster doesn't leak out of the wood box. I have read that the plaster heats up when it's curing. Will it get too hot and melt the plastic?