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 Post subject: Rexahedron
PostPosted: Tue Jul 26, 2011 2:57 pm 
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Joined: Mon Aug 02, 2004 7:03 am
Location: Koblenz, Germany
Hi,
on the 3th of July Zhewei beat me in making the first dodecahedral shape transformation of cornerturning hexhaedron with 2 cuts per axis. By that time this puzzle had been sitting finished but unstickered on m table for two months. Sadly I can't proove that.
Now I present my Rexahedron to get a honorable 2nd prize. On the other hand: Zhewei took the easy road (?): He used a Master Skewb which was not available by the time I started this one. Therefore I used a Rex cube.
This puzzle does not change shape.
Enjoy.


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Rexahedron (1).JPG
Rexahedron (1).JPG [ 84.41 KiB | Viewed 2049 times ]
Rexahedron (4).JPG
Rexahedron (4).JPG [ 86.45 KiB | Viewed 2049 times ]
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 Post subject: Re: Rexahedron
PostPosted: Tue Jul 26, 2011 4:09 pm 
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Joined: Thu Jul 01, 2010 8:38 pm
Nice puzzle! How about an honorary first place tie? :D
The transformation of a Rex Cube is much harder, first off, the curved cuts are difficult to extend. I for one have no idea how to do this. Andreas, care to share your technique?


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 Post subject: Re: Rexahedron
PostPosted: Tue Jul 26, 2011 4:34 pm 
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Joined: Thu Oct 16, 2008 9:46 pm
Location: Littleton CO
Awesome puzzle! I love how cubes like these look so crazy buy keep their shape.
This blows my mind.


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 Post subject: Re: Rexahedron
PostPosted: Tue Jul 26, 2011 6:00 pm 
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Awesome! :o

Solving is equivalent to a "super" Rex Cube, right?


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 Post subject: Re: Rexahedron
PostPosted: Wed Jul 27, 2011 2:32 am 
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Very very good work!!!!!!!!!!!!

What about the size?
Do you need extension, or is this shape made with cuts only?


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 Post subject: Re: Rexahedron
PostPosted: Wed Jul 27, 2011 2:41 am 
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Joined: Mon Dec 08, 2008 10:48 pm
Location: Thailand
:D Wow nice one
How does the edge length? Thank.

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 Post subject: Re: Rexahedron
PostPosted: Wed Jul 27, 2011 10:21 am 
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Location: Chichester, England
Nice work Andreas. I love the curvy cuts! :D

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 Post subject: Re: Roxahedron
PostPosted: Wed Jul 27, 2011 10:22 am 
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Location: near Utrecht, Netherlands
Very nice. That looks like it must have been hard to make with the curved surfaces and all. Cool!

When can we expect to see the Roxahedon?

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 Post subject: Re: Rexahedron
PostPosted: Wed Jul 27, 2011 12:56 pm 
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Joined: Mon Aug 02, 2004 7:03 am
Location: Koblenz, Germany
Thank you for all the kind words.

Solving is indeed equivalent to a Super Rex Cube.

@Claus: It is only fair to be asked such a question since I ask it quite often.
It weighs 390 grams compared with 144 for the original Rex Cube.
Edge length = 37mm

This puzzle was made by extending only. The red-blue-yellow corner you can see the in the first image is an "original corner" of the rex cube.

It was indeed very hard to make these round pieces. I did what I have done on other transformations: I stuff hard paper into the gaps, filled the spaces with Apoxie sculpt, removed the paper after hardening and then did a lot of sanding. Works great for a Pentagonal trapezohedron. Does not work that good for this one, sorry.

@Katsmom: Do you know what roxahedron is? :wink:


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 Post subject: Re: Rexahedron
PostPosted: Mon Aug 01, 2011 9:32 pm 
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Location: Hong Kong
errr....The crazy puzzle lady all squished and shoved down into a rather small space? :lol: :lol:

I have a feeling I will soon find out! :lol: :lol: Or maybe you will :wink:

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 Post subject: Re: Rexahedron
PostPosted: Mon Aug 01, 2011 9:53 pm 
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Location: London
I may be wrong here, but I cannot see where the smaller pieces are on this. Are they perhaps hidden underneath other pieces á la 3x3 -> 2x2? If they are not, where are they?

And if they are hidden underneath, does that affect the solving? I do not own a rex cube, so I do not know of any parities on it.

Oh, and as a side note- NICE! Where do you find the time needed to make such fantastic puzzles? I swear you have brought out a new one every week or less, and they are always so well made. You clearly have an abundance of creative talent :) .

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 Post subject: Re: Rexahedron
PostPosted: Tue Aug 02, 2011 12:04 pm 
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Joined: Mon Aug 02, 2004 7:03 am
Location: Koblenz, Germany
katsmom wrote:
I have a feeling I will soon find out!
I would tell you if there were something to tell. TomZ created the term Roxahedron. He is the one to blame.
@DudeHuLubeDaRubeCube:
I worked on these puzzles for quite some time. I am just publishing them as a batch.
See the image to find out which piece is equivalent to which RexCube-piece:
F => central Face of the Rex Cube
E => Edge of the Rex Cube
X => X-face of the Rex Cube


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