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 Post subject: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 8:19 am 
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Hi Twisty Puzzles fans,

Opposition Cube is a type of Constrained Cube. Rods are going all the way through the cube in three directions, so each face is bandaged by the opposite face.

Watch the YouTube video.
Buy the puzzle at my Shapeways Shop.
Read more at the Shapeways Forum.
Check out the photos below.

Enjoy!

Oskar
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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 8:29 am 
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Joined: Fri May 06, 2005 10:13 am
Location: Norway
Hi Oskar :D

Not much of a puzzle challenge, but nice design :roll:

Per

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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 9:24 am 
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Joined: Mon Jun 18, 2012 10:56 am
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I have been able to feel this in my hands at Voorburg, I love it, very sturdy and very interesting design! Well done Oskar.

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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 9:30 am 
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Location: Russia
Excellent Puzzle!!! You Genius :)

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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 9:43 am 
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Placing 3 rods through the same center so they can all move (shift and rotate) independently is no simple feat. So I'm curious, could you post a mech picture to show how you solved this problem? Thanks. :D

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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 10:06 am 
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He says in the video that it's a set of linked rings - something that can only really be 3D-printed.


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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 11:37 am 
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see core picture from ShapeWays. all simple :)
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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 12:14 pm 
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Joined: Sun May 29, 2011 2:56 pm
Location: New York
I really like this, Oskar!
Great work.

-Doug

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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 12:32 pm 
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Oskar, was this at all inspired by the "coreless" 3x3 shown a while back that used strings to connect opposite face centers?


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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 12:36 pm 
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I think the core would resemble something similar to this
Very neat idea and nice design as always.

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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 12:53 pm 
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Joined: Sun Mar 15, 2009 12:00 am
Location: Jarrow, England
Nice puzzle as always Oskar. There are a lot of "constrained" cubes coming out recently, I've no idea if this is more or less difficult than any of the other variants, I'm sure that some TP members could analyse this and tell us.

BTW, I think the central connection mech is based on Borromean rings and looks something like this:
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Borromean Rings.jpg
Borromean Rings.jpg [ 34.92 KiB | Viewed 1724 times ]

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 Post subject: Re: Opposition Cube by OSKAR
PostPosted: Sat Nov 24, 2012 2:39 pm 
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Joined: Thu Dec 02, 2004 12:09 pm
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Nice puzzle. I'm curious if all the states of a normal 3x3x3 are reachable but I'm not sure if even GAP can deal with this puzzle.
Jared wrote:
He says in the video that it's a set of linked rings - something that can only really be 3D-printed.
Yes, but I think that's only true if all the rings are made as single pieces which they obviously are in this case. If someone wanted to mass produce this puzzle it would be a simple enough mater to make one of the rings in two pieces I would think.

Carl

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