I am using an open source 3D program, called Blender, to make a 3D board. I would like to know if it is possible to carve circular indentations into a cylinder, which would be the board. In essence, I would like to create spherical indentations in the board, which would be where the pieces, which are spheres, would be placed upon. I was thinking somehow the overlap could be deleted from the board or something to that effect, but I do not know how to do that. An image of what I have made so far can be found here: http://img261.imageshack.us/img261/2466/boardqh3.jpg
I am still quite new to 3D modelling so I may not be able to do anything too complicated, although I could try. Also, if a way in Blender of doing it is not available, then I would be grateful if there were a generic term or method, which I could use to look it up myself.