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 Post subject: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Sun Nov 08, 2009 10:20 pm 
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Here it is! I alluded to it in this thread.

I've been working on this for the last month. Enjoy!

VIDEO

Image

Image

Image

Image

Image

Image

Image

Any comments are welcome.

-π (Eitan)

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Last edited by pirsquared on Mon Nov 09, 2009 4:09 pm, edited 1 time in total.

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Sun Nov 08, 2009 10:23 pm 
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Such a nice puzzle, I can not wait for the video.

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Sun Nov 08, 2009 10:25 pm 
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extremely nice build loving it how does it turn


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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Sun Nov 08, 2009 10:31 pm 
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MaxXimum13 wrote:
Such a nice puzzle, I can not wait for the video.
USCuber360 wrote:
extremely nice build loving it how does it turn


Thanks!

It locks up somewhat often, but otherwise, it turns better than anything I've ever built.

-π (Eitan)

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Sun Nov 08, 2009 11:17 pm 
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as the mechanism similar at all to the toru?

toru- viewtopic.php?f=15&t=9956&hilit=toru

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Sun Nov 08, 2009 11:25 pm 
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This is beautiful!
We really need a colorado meet up


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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Sun Nov 08, 2009 11:32 pm 
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TheCube wrote:
as the mechanism similar at all to the toru?

toru- viewtopic.php?f=15&t=9956&hilit=toru



I believe it is more closely related to The Rua puzzle.

http://twistypuzzles.com/forum/viewtopic.php?f=15&t=10246


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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Sun Nov 08, 2009 11:52 pm 
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Very nice job! Was a layered mechanism used?

can't wait to see the video :D

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 12:24 am 
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Fantastic work. Given that it's *just* a "simple" face turning rhombic dodecahedron, I imagine that you only needed a twelve armed spider with centers holding the shallow faces. And even if it is true that the geometry of the design seems to make jumbling almost inevitable, I still have to say I love the design.

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 1:28 am 
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:shock:
could we get a size comparison?
I'd really like to know the size of this thing! :D

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 6:55 am 
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Great puzzle!
The FTRD? :mrgreen:

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 11:08 am 
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Sven wrote:
The FTRD? :mrgreen:



Yea, why not?

Drew gets the DRDV2. :D :D

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 11:45 am 
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Was this based off the previously posted design?


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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 1:34 pm 
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Thanks for all the comments!

Jared wrote:
Was this based off the previously posted design?

Nope. I was a little miffed when MaxXimum13 posted his design last week. It's nice to be the first to have built it, though.

Jin H Kim wrote:
Fantastic work. Given that it's *just* a "simple" face turning rhombic dodecahedron, I imagine that you only needed a twelve armed spider with centers holding the shallow faces. And even if it is true that the geometry of the design seems to make jumbling almost inevitable, I still have to say I love the design.


Thanks! Due to the geometry of the mechanism, the jumbling moves can only go so far. I'll show this in the video.

I would be interested in a mathematical analysis of this thing. (wwwmwww?)

elijah wrote:
:shock:
could we get a size comparison?
I'd really like to know the size of this thing! :D


Here you go:

FTRD vs. 3x3
Image

FTRD vs. V7
Image

-π (Eitan)

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 3:03 pm 
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Wow, that is a lovely size! Beautiful work!

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 4:08 pm 
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Here's the VIDEO

philliesrule3690 wrote:
Wow, that is a lovely size! Beautiful work!

Thanks!

-π (Eitan)

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Mon Nov 09, 2009 5:28 pm 
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pirsquared wrote:
I would be interested in a mathematical analysis of this thing. (wwwmwww?)


You want the number of states? Andreas Nortmann might be a better person to ask but since this thing jumbles I'm not sure that is a very easy number to get. Great looking puzzle.

Carl

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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Mon Nov 09, 2009 5:55 pm 
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hmm, now if only maxx would make his version a little larger...

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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Mon Nov 09, 2009 5:59 pm 
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Why?

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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Mon Nov 09, 2009 6:02 pm 
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Maxx's version is most likely unstable, and it's only the size of a 3x3, which seems too small to me, but it's the only rhombic dodecahedron available to the public, so I think I'm going to print it anyway.

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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Mon Nov 09, 2009 10:24 pm 
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Excellent work. That thing is a beauty!

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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Tue Nov 10, 2009 7:38 am 
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beautiful puzzle, beautiful size, beautiful rotation! And I imagine it to be quite difficult too!

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 Post subject: Re: Eitan's Face-Turning-Rhombic-Dodecahedron (better name?)
PostPosted: Tue Nov 10, 2009 9:31 pm 
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Being it a three layered FTRD, I can't agree more.

Jin H Kim wrote:
Fantastic work. Given that it's *just* a "simple" face turning rhombic dodecahedron, I imagine that you only needed a twelve armed spider with centers holding the shallow faces. And even if it is true that the geometry of the design seems to make jumbling almost inevitable, I still have to say I love the design.


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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Wed Nov 11, 2009 5:12 am 
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Eitan, you must show the mechanism! I'm curious about how you were able to do this (presumably without a layered mechanism).

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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Wed Nov 11, 2009 9:58 am 
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amazing turning quality! great work! please make some for us! :) in BLACK plastic :twisted:

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 Post subject: Re: Eitan's Face-Turning Rhombic Dodecahedron (Now with Video!)
PostPosted: Wed Nov 11, 2009 11:06 am 
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Garrett wrote:
Eitan, you must show the mechanism! I'm curious about how you were able to do this (presumably without a layered mechanism).


There is no layered mechanism. Just check out MaxXimum13's original thread that I linked to in my first post.

Doubleyou wrote:
amazing turning quality! great work! please make some for us! :) in BLACK plastic :twisted:


Sorry, but I don't make puzzles in black anymore. It stains too much!

-π (Eitan)

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