Eight Inch Bolt by OSKAR

Discussion in 'Feature this!' started by Oskar_van_Deventer, Jun 8, 2013.

  1. Oskar_van_Deventer
    Oskar_van_Deventer Well-Known Member
    Hi Shapeways fans,

    Eight Inch Bolt is a 21 centimeter high bolt-shaped puzzle. The object is to remove the ring from the bolt. Because of pins and grooves, the ring can only slide up and down, it cannot turn. Hidden inside the ring, there is a smaller ring with a pin that runs in the maze grooves. By moving the big ring up and down, the hidden right turns sideways, pushed by the grooves. When the maze is solved by moving the ring up and down many times in a delicate sequence, it comes off at the top.

    The model on the photos was 3D-printed by George Miller in 2004. This first prototype has a red top, as George ran out of black ABS wire midway his print. George also added a ruler, which indicates the solution.

    Another copy of this puzzle is on permanent display at the Kinsey Institute in Bloomington, Indiana.

    Watch the YouTube video, presented by Tess.
    Buy the puzzle at my Shapeways Shop.
    Read more at the Non-Twisty Puzzles Forum.
    Check out the photo below. More photos at the Non-Twisty Puzzles Forum.