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 Post subject: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sat Feb 05, 2011 8:41 pm 
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This is my latest puzzle: the Dino Rhombic Triacontahedron (or DRT). As the name suggests, it is a vertex turning rhombic triacontahedron. The puzzle is fairly small; it is 65.6mm from face to opposite face. It is stickered in 15 colors, with opposite sides stickered in the same color. The stickers were cut by Olivér Nagy. The turning is smooth, and I think that it's impossible to pop a piece out without breaking the puzzle or unscrewing a side.

Due to the sharp angle between the cuts and the faces of the puzzle, the fillets create large gaps on the puzzle, even though the fillets have a very small radius. (Yes, I did use the offset face method for reducing fillet gaps. It did help significantly, but the gaps are still about 2mm wide, I'd estimate.) Sadly, I don't think this problem can be fixed in the design, as the pieces will always meet at the same angles, even if the puzzle is scaled up.

A DIY kit is available through Shapeways for $89.98.

To purchase this puzzle, you must buy one core, and one of the rest of the pieces. For more information on ordering, please see the description on Shapeways.

VIDEO

Solved
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Turning
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A few turns later
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Comparison to 3x3
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Last edited by will_57 on Fri Feb 11, 2011 4:27 pm, edited 1 time in total.

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sat Feb 05, 2011 8:46 pm 
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The turning is very smooth, but it is a little too shallow cut for my tastes. Also, it's a shame that the gaps aren't removable. :(

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sat Feb 05, 2011 8:50 pm 
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Turning looks very nice and I really like this shape. Nice job.

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sat Feb 05, 2011 10:47 pm 
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This reminds me of a Dogic. I like this a lot and I wonder if it would be very difficult to solve.

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sat Feb 05, 2011 10:54 pm 
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Rentlix wrote:
This reminds me of a Dogic. I like this a lot and I wonder if it would be very difficult to solve.

I did a solve on it earlier today. It's fairly simple to solve, but if you don't know the color scheme, there can be a lot of trial and error.

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sat Feb 05, 2011 10:56 pm 
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I really like this puzzle, I tried designing something similar a while back and had some difficulty.

I personally would sticker this with twelve colors, it would be easier on color recognition.

I think since the gaps can't be fixed it would be nice if the shapeways version had caps to hide the screw. It would probably make the gaps a little less noticeable as well.


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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 4:59 am 
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You know, this puzzle has gaps because the pieces are thin and are filleted, but some puzzle look better unfilleted 8-)

- Greg

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 5:21 am 
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MonkeyZ wrote:
The turning is very smooth, but it is a little too shallow cut for my tastes.

That's exactly what I was thinking. This is a nice puzzle, but it looks fairly awkward to hold when making turns and could be a bit tedious to solve. Still, it's a very cool and well made puzzle. :D

Alex

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 8:59 am 
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Very beautiful puzzle! And so tiny for all of those faces! I like it alot!
I agree with Muffet on this one, caps to cover the screws would be nice! Gaps are ok, but I dont want to be able to look directly at the screws as well

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 9:10 am 
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Very beautiful puzzle! I love rhombic triacontahedra, they're my favorite shape.

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 9:21 am 
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RubixFreakGreg wrote:
You know, this puzzle has gaps because the pieces are thin and are filleted, but some puzzle look better unfilleted 8-)

This puzzle would lock up like crazy if it were unfilleted, even if the mechanism was filleted.
Sigurd wrote:
I agree with Muffet on this one, caps to cover the screws would be nice! Gaps are ok, but I dont want to be able to look directly at the screws as well

When designing this puzzle, I wanted to see how small I could possibly make it. As a result, there is no room in the puzzle to put caps, as the screws aren't even a millimeter away from the cuts in some places. If you want caps, I would have to make the puzzle larger, and it would cost more to print.

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 9:37 am 
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If you made it larger there wouldn't even be gaps :lol:

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 2:28 pm 
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will_57 wrote:
When designing this puzzle, I wanted to see how small I could possibly make it. As a result, there is no room in the puzzle to put caps, as the screws aren't even a millimeter away from the cuts in some places. If you want caps, I would have to make the puzzle larger, and it would cost more to print.
You could go with black anodized screws. It would make them much less noticable.

Carl

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 2:31 pm 
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That looks really cool Will, well done! I've been waiting for you to reveal this puzzle for a while now.

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 5:44 pm 
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What a beautiful puzzle. Very well done.

Chris


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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Sun Feb 06, 2011 9:17 pm 
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Dude, you rock! I have run into the same issue on a recent puzzle I have tried to design twice now. Both versions ended up being scrapped because of a particular floating piece I couldn't get rid of, and because of the fillets taking off material from the pieces with Triangular geometry.

Seriously, you are going to go far with design skills like yours.

-Eitan

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Fri Feb 11, 2011 4:25 pm 
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This puzzle is now available on Shapeways for just $89.98!

To purchase this puzzle, you must buy one core, and one of the rest of the pieces. You will also need 32 #4-40x1/2 screws. (Other screws may work, but this is what I used) For more information on ordering, please see the description on Shapeways.

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Katniss wrote:
Only on this forum would people use a V-cube 7 as a size comparison for a cat :lol:

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 Post subject: Re: Dino Rhombic Triacontahedron (DRT)
PostPosted: Fri Feb 11, 2011 11:54 pm 
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I REALLY REALLY want this. Its so cheap but unfortunately I still can't afford it right now.

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MaCheezm0 wrote:
2nd layer using Fisher parts


I very much hope you mean Fisher Cube parts.


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