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 Post subject: Dave's Diamond - Magnetic Proof-of-Concept
PostPosted: Thu Jul 26, 2012 3:15 pm 
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Joined: Wed Dec 10, 2008 6:26 pm
Location: Boston area
Hi Everyone,

Today I'd like to introduce a puzzle I've called Dave's Diamond. More precisely, I'd like to introduce you to a magnetic proof-of-concept model of Dave's Diamond:
Attachment:
Dave's Diamond View 1.JPG
Dave's Diamond View 1.JPG [ 202 KiB | Viewed 1426 times ]
Dave's Diamond is a hexagonal dipyramid, shaped such that slice planes at a certain angle through the origin of the puzzle have four-way symmetry. Each of the 12 resulting axes can turn in increments of 90 degrees. But when the puzzle is shape-shifted, only half of the axes remain available for turning. This set of axes are all at right angles to each other, so that Dave's Diamond can be thought of as two overlapping but rotationally offset 2x2x2 cubes.

Here is a video of Dave's Diamond.

And here are a few more pictures of Dave's Diamond:
Attachment:
Dave's Diamond View 2.JPG
Dave's Diamond View 2.JPG [ 196.27 KiB | Viewed 1426 times ]
Attachment:
Dave's Diamond Polar Vertex.JPG
Dave's Diamond Polar Vertex.JPG [ 201.17 KiB | Viewed 1426 times ]
Attachment:
Dave's Diamond Half Turn.JPG
Dave's Diamond Half Turn.JPG [ 203.13 KiB | Viewed 1426 times ]
Attachment:
Dave's Diamond Quarter Turn.JPG
Dave's Diamond Quarter Turn.JPG [ 205.48 KiB | Viewed 1426 times ]
Attachment:
Dave's Diamond Quarter & Half Turns.JPG
Dave's Diamond Quarter & Half Turns.JPG [ 209.5 KiB | Viewed 1426 times ]
Attachment:
Dave's Diamond Three Turns.JPG
Dave's Diamond Three Turns.JPG [ 204.84 KiB | Viewed 1426 times ]
Attachment:
Dave's Diamond Three Turns 2.JPG
Dave's Diamond Three Turns 2.JPG [ 210.27 KiB | Viewed 1426 times ]

Note that since this is only a magnetic proof-of-concept, I am not offering Dave's Diamond for sale.

Enjoy!
Dave

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 Post subject: Re: Dave's Diamond - Magnetic Proof-of-Concept
PostPosted: Thu Jul 26, 2012 3:22 pm 
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Joined: Sat Jan 16, 2010 11:48 am
Location: In Front Of My Teraminx (saying WTF?)
Basically it's a 2x2+axis 2x2 in the shape of a hex dype :P I like it !! :)

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 Post subject: Re: Dave's Diamond - Magnetic Proof-of-Concept
PostPosted: Thu Jul 26, 2012 4:37 pm 
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Joined: Sun May 29, 2011 2:56 pm
Location: New York
Woah! I don't fully understand it, but woah! Great job!

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 Post subject: Re: Dave's Diamond - Magnetic Proof-of-Concept
PostPosted: Fri Jul 27, 2012 4:07 am 
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Joined: Sun Mar 15, 2009 12:00 am
Location: Jarrow, England
Another weird and wonderful design. Just out of interest, why did you feel the need to do a proof of concept for this - or do you do this for all your puzzles, but this is the first time you have posted it?

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 Post subject: Re: Dave's Diamond - Magnetic Proof-of-Concept
PostPosted: Fri Jul 27, 2012 10:13 am 
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Joined: Wed Dec 10, 2008 6:26 pm
Location: Boston area
Thanks for the nice comments!
Gus wrote:
Just out of interest, why did you feel the need to do a proof of concept for this - or do you do this for all your puzzles, but this is the first time you have posted it?
I did a proof of concept model because the mechanical model was getting very complex, and I wanted to make sure that the puzzle would actually scramble well and be a good puzzle before devoting more time to developing a working mechanism. Plus, I already had the magnets sitting around, so I figured I'd put them to good use. I certainly don't do this for all my puzzles, I'd be completely broke if I did!

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 Post subject: Re: Dave's Diamond - Magnetic Proof-of-Concept
PostPosted: Fri Jul 27, 2012 11:57 am 
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Joined: Sun May 29, 2011 2:56 pm
Location: New York
So, this is a hexagonal dipyramid. This is a pretty common shape mod of nxnxn puzzles. Does that mean that this could be turned into a cube? Or a tetrahedron? Or a cubeoctahedron? Or a half truncated cube? etc

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