HedronStack Pentacells

Pentacells is an expansion for the HedronStack stacking game. 29 new pieces, each consisting of five truncated octahedrons in all possible unique configurations. Contents Pentacells-8-Set.stl - preselected set of 8 pieces. Recommended choice for expanding the base game. If you would like to create a custom set, or use all 29 pieces, they are sorted into 3 separate models: Pentacells-planar.stl - 12 pieces where all truncated octahedrons are in one plane. Pentacells-nonplanar.stl - 15 pieces that are nonplanar, but don't require supports. Pentacells-nonplanar-with-supports.stl - 2 pieces that are nonplanar and must be printed with supports. Rules and bases for playing can be found here . Changelog 2026 02 19 - New pictures