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Eight Inch Bolt by Oskar

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Eight Inch Bolt by Oskar [message #69486] Sat, 08 June 2013 16:44 UTC Go to next message
avatar Oskar_van_Deventer  is currently offline Oskar_van_Deventer
Messages: 507
Registered: December 2008
Go to my shop
Senior 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.
Buying information here.
Read more at the Non-Twisty Puzzles Forum.
Check out the photos below. More photos at the Non-Twisty Puzzles Forum.



[Updated on: Thu, 04 July 2013 18:34 UTC]

Re: Eight Inch Bolt by Oskar [message #69514 is a reply to message #69486 ] Sun, 09 June 2013 23:00 UTC Go to previous message
avatar gibell  is currently offline gibell
Messages: 406
Registered: May 2009
Go to my shop
Senior Member
Ha ha ha! I think this is a new category "Adult Puzzle". Shocked
Yeh, I'm sure George ran out of black ABS ... Twisted Evil

Great job, Oskar!

[Updated on: Mon, 10 June 2013 04:05 UTC]

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