I'm preparing to print my first ceramic part, and I have a question to hopefully inform my design a bit. Tip #8 on the design rules page for ceramics indicates that parts should have a clear "bottom" to ensure they are glazed correctly. Does this mean the bottom doesn't get glazed? Does the area of this base get subtracted from the print price? If I print a 10 cm x 10 cm x 10 cm cube, is the surface area 600 cm^2 or only 500 cm^2 (subtracting on face area for the "bottom")?