My
art class is doing a unit on ceramics. We are working with terra cotta, the kind of clay that turns flower-pot-orange when fired. I want to make a couple of sculptures that are functional as well as decorative.
One of the first things that came to mind was to build a small, one-piece
rocket stove. It must be no more than 8 inches (20cm) tall, probably more like 6 inches (15cm).
I'm figuring that the chimney will taper to 2.5 inches (6.3cm) wide. The thickness of the clay would be about 0.5 inches (1.2cm).
Another idea I have is to make a small botijo (an unglazed bottle that cools
water by evaporation). What thickness
should I use to let the water evaporate without dripping out too fast? Could the terracotta have anything toxic in it? Would mold be an issue with moist, unglazed terracotta?
Does anyone have
experience with terra cotta? I'd appreciate any ideas!