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 Post subject: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 9:19 am 
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My favorite mathematical shape. But it is very difficult to contruct and to design.

Video here: http://www.youtube.com/watch?v=ddI2FzYaJNg

Details will follow this night:

Attachment:
cw_Great Icosahedron Skewb (1).JPG
cw_Great Icosahedron Skewb (1).JPG [ 1.79 MiB | Viewed 2284 times ]

Attachment:
cw_Great Icosahedron Skewb (2).JPG
cw_Great Icosahedron Skewb (2).JPG [ 1.79 MiB | Viewed 2284 times ]

Attachment:
cw_Great Icosahedron Skewb (3).JPG
cw_Great Icosahedron Skewb (3).JPG [ 1.76 MiB | Viewed 2284 times ]

Attachment:
cw_Great Icosahedron Skewb (4).JPG
cw_Great Icosahedron Skewb (4).JPG [ 1.64 MiB | Viewed 2284 times ]

Attachment:
cw_Great Icosahedron Skewb (5).JPG
cw_Great Icosahedron Skewb (5).JPG [ 1.69 MiB | Viewed 2284 times ]

Attachment:
cw_Great Icosahedron Skewb (6).JPG
cw_Great Icosahedron Skewb (6).JPG [ 1.78 MiB | Viewed 2284 times ]

Attachment:
cw_Great Icosahedron Skewb (7).JPG
cw_Great Icosahedron Skewb (7).JPG [ 1.85 MiB | Viewed 2284 times ]


I cast it with Oomoo30, but I reached the limit of streching. I used SmoothCast300 as resin, which will be hard in 7 minutes.

Attachment:
cw_5-molds.JPG
cw_5-molds.JPG [ 1.7 MiB | Viewed 2284 times ]


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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 9:37 am 
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Joined: Sun Mar 15, 2009 12:00 am
Location: Jarrow, England
Truly beautiful, and nicely stickered. I am amazed that you could get such complex shapes out of the mould at all. Did the material keep breaking when you were stretching it?

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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 10:22 am 
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Joined: Sat Feb 03, 2007 10:03 pm
Location: Mississippi
Yay for a beautiful, and CAST puzzle!

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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 10:33 am 
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Joined: Wed Nov 24, 2010 11:12 am
Location: Hong Kong/Beijing
Very shocking visual effect!


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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 12:38 pm 
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Joined: Thu Dec 31, 2009 8:54 pm
Location: Bay Area, California
This is an incredibly clean build and it looks great. What a great addition to your collection.

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Prior to using my real name I posted under the account named bmenrigh.


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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 12:51 pm 
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Joined: Sun Mar 27, 2005 7:37 pm
Amazing. I was uncertain if we would ever see these shapes used in puzzles.

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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 12:54 pm 
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Joined: Mon Aug 02, 2004 7:03 am
Location: Koblenz, Germany
Ouch!
That definitely hurts!

What are the measurements?

Can you make an image beside this one?
viewtopic.php?p=281769#p281769


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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Wed May 23, 2012 10:04 pm 
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Joined: Mon Aug 18, 2008 10:16 pm
Location: Somewhere Else
Why a Skewb, and not a Pentultimate? :lol:


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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Thu May 24, 2012 1:56 am 
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Here is the missing picture:

Attachment:
cw_GI (big and small).JPG
cw_GI (big and small).JPG [ 2.12 MiB | Viewed 1983 times ]


Because I got a lot of question for selling, here a remark for this.

Most of you know, that I don't sell puzzles. The cuboids, Greg designed for me, are avaiable in my Shapeway shop to bring them to interested puzzles.We have bo work with it.

Handmade or casted puzzles are to expensive for selling. In case of this GI:

The printed cost for the masters (3 pieces) are 75 Euro. There is no makeup. Only material and machine costs. If someone are interested he can send me an email. A complete 3d-printed puzzles has a price of 380 Euro plus one Skewb plus stickers plus a lot of work.

For duplication of the masters you need one bottle Oomoo30 (31 Euro) and resin 1.5 l (close to 20 Euro). Her you can build a complete puzzles for 125 Euro. The prices for the master of my other skewb mods are much cheaper. Here you need only a half bottle Oomoo aso.

The molds are good for 1 up to 2 puzzles (not more). Every copy will take small pieces of Oomoo with it and destroy the mold.

Gus, you ask for breaking. If the mold breaks it is not important. It will works. Missing material is the most problem.


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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Thu May 24, 2012 7:02 am 
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Joined: Sun Mar 07, 2010 2:19 pm
Location: PA
Claus, you should try Mold Star 15 from Smooth-On. It's much, much more durable than Oomoo and is just as easy to use.


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 Post subject: Re: Great Icosahedron Skewb
PostPosted: Sat May 26, 2012 12:40 pm 
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Joined: Sun Jul 10, 2011 3:59 pm
truly looks amazing, but it almost looks scrambled even in a solved state lol

I don't think I could solve this.


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