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 Post subject: Starminx Cube?Posted: Thu Sep 01, 2011 1:56 pm

Joined: Mon Aug 27, 2007 3:50 pm
Location: Copenhagen, Denmark
If a Megaminx is a 3x3x3, then what would starminx be in cubic form?

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 Post subject: Re: Starminx Cube?Posted: Thu Sep 01, 2011 2:02 pm

Joined: Thu Sep 24, 2009 12:21 pm
Location: Chichester, England
A pain to make. Due to the cuts and geometry of the Starminx, shape variations are rather restricted. However, you could imagine one by removing the corners from Eitan's Master Heximate.

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 Post subject: Starminx Cube?Posted: Thu Sep 01, 2011 2:07 pm

Joined: Tue Mar 24, 2009 12:52 pm
Starminx (Corner Turning) = Dino-Dodecahedron = Dino-Cube.

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 Post subject: Re: Starminx Cube?Posted: Thu Sep 01, 2011 2:10 pm

Joined: Thu Sep 24, 2009 12:21 pm
Location: Chichester, England
My bad, I misread the question. I would consider corner turning cubes equivalent to face turning dodecahedrons (think about Skewb - Pentultimate). Therefore, the Starminx is the Rex Cube. If you want a face turning cube though... Well, it's a 3x3x3 with weird proportions.

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3x3x3 average of twelve: 9.77 seconds.

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 Post subject: Re: Starminx Cube?Posted: Thu Sep 01, 2011 2:12 pm

Joined: Fri Feb 08, 2008 1:47 am
Location: near Utrecht, Netherlands
The Starminx is face turning...

Interesting question... so what is the cubic equivalent of a Pentultimate? It's not a 2x2x2 because that is a Kilominx.

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 Post subject: Re: Starminx Cube?Posted: Thu Sep 01, 2011 2:15 pm

Joined: Thu Sep 24, 2009 12:21 pm
Location: Chichester, England
One thing which can become confusing is that we try to do analogies between cubes and other solids. Generally, it would be nice if we avoided analogies between cubes and tetrahedrons, because tetrahedrons are weird because of their "face opposite corner" property, and cubes because all their angles are at 90 degrees to each other, and their axes don't intersect with each other at different angles apart from 90 degrees (I hope I explained this well enough).

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3x3x3 single: 5.73 seconds.
3x3x3 average of five: 8.92 seconds.
3x3x3 average of twelve: 9.77 seconds.

Buy the Curvy Copter Skewb, NovaMinx, and more here!

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 Post subject: Re: Starminx Cube?Posted: Thu Sep 01, 2011 2:16 pm

Joined: Thu Jul 01, 2010 8:38 pm
Well, if a starminx is defined as a face turning dodecahedron in which the depth of the cuts extent to nearest vertices. Then the cubic equivalent would be a face turning cube in which the depth of the cuts extent to nearest vertices, in that case, the puzzle doesn't exist, or we can see a solid cube as a trivial case of it.

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 Post subject: Re: Starminx Cube?Posted: Thu Sep 01, 2011 2:29 pm

Joined: Mon Sep 29, 2008 9:41 am
Location: Spijkenisse, the Netherlands
I get that a face-turning dodecahedron to a face-turning cube is logical, but solving-wise, the Starminx is most similar to the Rex Cube, with the same type of pieces and somewhat similar solving experience.

Cut depth on a cube means something entirely different than what it means on a dodecahedron. Every cube with 2 slices in all 3 dimensions is automatically a 3x3, while on a dodecahedron it could be a megaminx, pyraminx crystal, starminx, master pentultimate, or with slight modifications a kilominx.

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 Post subject: Re: Starminx Cube?Posted: Thu Sep 01, 2011 2:53 pm

Joined: Mon Aug 27, 2007 3:50 pm
Location: Copenhagen, Denmark
TomZ wrote:
The Starminx is face turning...

Interesting question... so what is the cubic equivalent of a Pentultimate? It's not a 2x2x2 because that is a Kilominx.

This was my first line of thought too.

I was somewhat imagining a bandaged 5x5x5. And the outer cut (only) goes past the center.
I am not at all sure what I am saying hehe. Well thats the reason for the question.

off topic, if you arent really looking then me an Sjoerd has the same name

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Tony Fisher wrote:
I believe it would work best with black plastic.

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 Post subject: Re: Starminx Cube?Posted: Sun Sep 04, 2011 10:28 am

Joined: Wed May 13, 2009 4:58 pm
Location: Vancouver, Washington
The closest thing I can think of is something like gelatin brain's 3.1.31. Although I would consider this more like a Pyraminx Crystal. Too bad this puzzle is impossible to make.

If you want to look more into these mythical pieces that can exist (yet), search for some of the discussions by wwwmwww (Carl) and Andreas Nortmann about the Complex 3x3x3. They've made several posts about it in various threads. Not sure which thread/post is best.

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 Post subject: Re: Starminx Cube?Posted: Sun Sep 04, 2011 10:30 am

Joined: Mon Aug 27, 2007 3:50 pm
Location: Copenhagen, Denmark
Ty GuiltyBystander

weird thing is that you can still make turns not including the center. right?

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Tony Fisher wrote:
I believe it would work best with black plastic.

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 Post subject: Re: Starminx Cube?Posted: Sun Sep 04, 2011 7:12 pm

Joined: Wed May 13, 2009 4:58 pm
Location: Vancouver, Washington
Sigurd wrote:
Ty GuiltyBystander

weird thing is that you can still make turns not including the center. right?
No. That's like saying you can turn the right side, but not the left on a 2x2x2.

Another way to visualize this puzzle (if you want to try to play with this at home) is as a small 3x3x3 inside a larger 3x3x3. When you turn one layer of the bigger 3x3x3, you turn the same layers of the inner cube and the slice layer next to it (so 2 layers).

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 Post subject: Re: Starminx Cube?Posted: Sun Sep 04, 2011 7:43 pm

Joined: Mon Aug 27, 2007 3:50 pm
Location: Copenhagen, Denmark
but you are looking at a single layer turn on the other side of the puzzle

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Tony Fisher wrote:
I believe it would work best with black plastic.

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 Post subject: Re: Starminx Cube?Posted: Sun Sep 04, 2011 8:59 pm

Joined: Wed May 13, 2009 4:58 pm
Location: Vancouver, Washington
Sigurd wrote:
but you are looking at a single layer turn on the other side of the puzzle
I assume you're talking about my 2 3x3x3 analogy (if not, please clarify). In that case no. Because you're rotating 2 layers on the inner cube, you're basically doing a 1 layer rotation AND you're rotating the cube. So if you turn 1 layer on the blue, then white face on the outer cube, you'll be turning 2 layers on blue, then red face on the inner cube.

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 Post subject: Re: Starminx Cube?Posted: Sun Sep 04, 2011 9:21 pm

Joined: Fri Feb 06, 2009 4:43 pm
Location: Mountain View, CA
TomZ wrote:
The Starminx is face turning...

Interesting question... so what is the cubic equivalent of a Pentultimate? It's not a 2x2x2 because that is a Kilominx.

I think it would be a Skweb.

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 Post subject: Re: Starminx Cube?Posted: Sun Sep 04, 2011 11:31 pm

Joined: Wed May 13, 2009 4:58 pm
Location: Vancouver, Washington
leonid wrote:
TomZ wrote:
The Starminx is face turning...

Interesting question... so what is the cubic equivalent of a Pentultimate? It's not a 2x2x2 because that is a Kilominx.
I think it would be a Skweb.
Skewb is corner turning. We're looking for a face turning cube.

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