Hex Game (aka Polygon, aka Nash)

This is Piet Hein's “Hex” game (see BoardGameGeek: Hex), which he first published under the name Polygon in 1942. The game was also claimed to be invented by John Nash in the late 1940s.

This version is sized such that an 11×11 board fits on a i3 MK3S print bed. It will also fit on an Ender 3 if you rotate it a little. The board and the pieces are generated from a single OpenSCAD program. The OpenSCAD code can generate boards of any number of cells at an arbitrary cell size, and calculates the correct number of pieces that each player should have. It can also generate a 2D paper board plan for printing.

This is quite a long print, as you'll need to print two sets of pieces in contrasting colours. Total print time for me was roughly 8¼ hours, and that was with reducing top and bottom layers down to a minimum.

(Note that the image shows all of the game pieces on the board, and doesn't represent a realistic game. Toonie and SD card for scale.)