UPDATE: Some people are reporting problems with the king and rook. Read the comments and check your slicer's output before printing. There's a link to a 'fixed' .stl file for the rook in the comments also.(Old update): Now updated to make king and rooks more printer-friendly by eliminating horizontal overhangs. How this thing happened: I couldn't find a support-less knight that I liked, so I modified the knight from http://www.thingiverse.com/thing:34017 by adding a little more support to the jaw. The rest of the pieces are from http://www.thingiverse.com/thing:46808 -- the rook and king from that set have been altered to remove the horizontal overhangs. .STL files provided: Singles for all pieces. 2-up for rooks, bishops and knights. 8-up for pawns. Complete set.I printed in PLA with .25mm layers, 20% fill, no raft, no support. The support under the knight's jaw can be sawn, whittled or ground away with a high speed rotary tool (Dremel) for a better appearance.