Screwballs in Wood - How do you like the wooden look?
Channel: OskarPuzzle
Date: 05/12/2020

More OskarPuzzle at https://www.youtube.com/OskarPuzzle?sub_confirmation=1. Download and print it yourself at https://oskarvandeventer.nl/Print-It-Yourself/. Buy at https://www.puzzlemaster.ca/browse/inventors/oskar/14652-screwballs, https://i.materialise.com/en/shop/item/screwballs-v3a-caged, or at https://www.shapeways.com/product/V3G7R7CUH/screwballs. Screwballs is an easy assembly puzzle, first designed and prototyped in May 2009. The puzzle has six identical rods with right and left-handed threads at the end, and four different balls, each with three threaded holes. The object of the puzzle is to assemble a tetrahedron. Because of the threading, the puzzle is assembled as an implosing, i.e. turning all the rods simultaneously and puzzling the balls together. This version was made in 3D-printed wood, specially for PuzzleMaster.

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Buy mass-produced Oskar puzzles at https://www.puzzlemaster.ca/browse/inventors/oskar/ (USA, CA) and http://www.sloyd.fi/oskar-deventer-c-151_154.html (EU)
Buy exclusive 3D-printed Oskar puzzles at  http://shapeways.com/shops/oskarpuzzles and https://i.materialise.com/shop/designer/oskarpuzzle