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An Arduino is being used here to power this Chess Playing Robot game that Max Justicz built. The assembly is built using drawer slides, some of these are very tight with some smooth ball bearing action. Nice thing about this platform is it could be used to play any board game that needs to have pieces moved around or as Max mentions, it could be made into a CNC machine.
“The board works like any other xy table, with a few key differences. First, the x axis has an extra servo attached to it, which raises and lowers a magnet. The magnet is attracted to pieces on the chess board above, allowing them to move. Second, embedded in the board are 64 magnetically activated reed switches, allowing the arduino to know the location of each piece.”