Chess Board for Dual Extrusion

thingiverse

This chess board is designed to be printed with dual extrusion in two colors. Two files, BoardQuarterBlack.stl (or optionally BoardQuarterBlackScrews) and BoardQuarterWhite.stl, must be merged together in your slicer, resulting in one quarter of the board for either black or white squares. The joiner clips hold the quarters together with a tight press fit. To assemble, print each quarter face-down to achieve a smooth finish as desired. Added: A version of the black file that uses M3x10mm or M3x12mm screws and nuts to join the board quarters instead of friction clips. In your slicer, merge the BoardQuarterBlackScrews.stl file with the BoardQuarterWhite.stl to create a quarter that can be held together by screws. This requires 8 screws and 8 nuts for an 8x8 board. The screw option makes assembly much easier. Each square measures 40mm (1.575 inches) and the total board size is 320mm square (12.6 inches square). There are four files: one for black squares using joiner clips, one for black squares with screws, one for white squares to be used with either of the "black" options, and one for the clips that hold the quarters together. Since all resulting merged 1/4-boards print identically, this board can be extended infinitely in 16-square increments. This design was created for use with 0.5mm nozzles. The clips fit tightly and may require an arbor press to seat properly. The photo shows a three-quarters assembled board, with the fourth quarter being printed and the joiner clips visible at the bottom of the assembly. Proper chess board positioning places a white square in both players' right-hand corners, with the queen on her designated color square.