Post pictures of any completed new puzzles here: sticker variations, simple mods, complex customs, brand new inventions and newly released production puzzles.
Author |
Message |
gingervergo
|
Post subject: Eric Vergo's Rhomdo (updated with viedo)
Post
Posted: Sat Feb 05, 2011 1:12 am
|
|
Joined: Fri Mar 06, 2009 9:23 pm
|
Hey forum, I'm very happy to show you my latest puzzle, named the "Rhomdo"
Video
The puzzle is a face turning version of a trapezo-rhombic dodecahedron. The puzzle has 12 faces, six of which are rhombuses, and 6 of which are trapezoids. The puzzle has 9 distinct turning axis (in the same way the rubik's cube has 3). The shapes make up for some crazy jumbling. The stickers for this puzzle were cut by Eitan (Thanks for rushing it!)
How I came up with this puzzle is a little bit of a story, and I think its quite interesting. The original inspiration for this puzzle came from the rhombic dodecahedron skewb. If you turn any of the cuts by 60 degrees you will end up with the shape of the Rhomdo. I always wanted to make a face turning puzzle out of that shape, but I thought it was impossible because there were differing edge lengths. Then, when the two helicopter skewb puzzles were released, I knew this puzzle would be possible (after a 60 degree skewb turn on the helicopter skewb, jumbling moves are allowed). After that, the puzzle sat on the bottom of my to do list, until The constellation six was released.
The constellation six may seem totally irrelevant, but the Rhomdo and the constellation six are very related. When all of the discussion started about the constellation six, I was very interested in what could be done with the geometries involved, so I fired up solidworks. As it turns out, when you view the constellation six as an edge turning puzzle, the act of rotating an edge moves turning axis on the puzzle (this is why its easier to look at it as a vertex turning puzzle). If you take all of the possible axis positions on the constellation six (nine of them), and use them to make a shape, it naturally produces the same shape that you got by doing a 60 degree turn on a rhombic dodecahedron skewb.
Anyway, when the shape revealed itself to me for a second time, I knew i had to make a puzzle out of it, and this is the result. I hope you enjoy.
solved puzzle
showing a normal 180 degree turn on a rhombic face
showing one of the types of jumbling
Last edited by gingervergo on Tue Feb 08, 2011 12:16 pm, edited 1 time in total.
|
|
|
|
Top |
|
|
pirsquared
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 1:31 am
|
|
Joined: Wed Jan 07, 2009 6:46 pm
Website: http://www.eitancher.com
Location: Minneapolis, MN
|
|
Top |
|
|
DLitwin
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 2:24 am
|
|
Joined: Thu Dec 21, 2006 5:32 pm
Website: http://www.LitwinPuzzles.com
Location: Bay Area, CA
|
Wow, really nice!
Thanks for the background on its origin,
Dave
_________________
LitwinPuzzles.com has info on my puzzles.
|
|
Top |
|
|
kastellorizo
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 3:46 am
|
|
Joined: Fri Nov 04, 2005 12:31 am
Website: http://www.houlis.com
Location: Greece, Australia, Thailand, India, Singapore.
YouTube: kastellorizo
|
|
Top |
|
|
Luke
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 4:02 am
|
|
Joined: Thu Sep 24, 2009 12:21 pm
Location: Bristol, UK
|
|
Top |
|
|
Andreas Nortmann
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 4:33 am
|
|
Joined: Mon Aug 02, 2004 7:03 am
Location: Koblenz, Germany
|
|
Top |
|
|
Justin
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 7:20 am
|
|
Joined: Tue Jul 08, 2008 3:39 pm
Location: Cornwall, United Kingdom
|
It's good to see some of the more unusual shapes out there, being used. The pattern of cuts works really well.
The shape is a 'trapezo-rhombic dodecahedron'. Its dual has some square faces - I don't know if this puzzle would function in that form.
_________________ Bring me knitting.
|
|
Top |
|
|
Kapusta
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 7:45 am
|
|
Joined: Tue Mar 10, 2009 7:06 pm
Website: https://www.linkedin.com/in/wilmedeiros
Location: Nowhere in particular.
|
Very nice Eric, you're on a roll lately! This is one of my favorites from you.
_________________ ~Kapusta
PB: At home (In Competition)
2x2 1.xx (2.88)
3x3 11.xx (15.81)
4x4 52.xx (1:24.63)
5x5 2:25.xx (3:00.02)
6x6 4:26.05 (6:34.68)
7x7 5:54.xx (9:48.81)
OH (35.63)
Current Goals:
4x4 sub-1:00 Avg.
5x5 sub-2:00 Avg.
6x6 sub-4 Avg.
|
|
Top |
|
|
MonkeyZ
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 8:42 am
|
|
Joined: Tue Aug 11, 2009 3:59 pm
Website: http://watersavers.webs.com
Location: NJ
|
Very nice puzzle. I think it's safe to assume that the trapezoid faces are isosceles?
_________________
Jhahoua wrote:Oskar wrote:There are three types of people: those are good at counting and those who aren't ...
But that is only 2 kinds of people what is the 3rd?
|
|
Top |
|
|
wwwmwww
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 12:06 pm
|
|
Joined: Thu Dec 02, 2004 12:09 pm
Website: http://www.wwwmwww.com/
Location: Queen Creek, AZ
|
Great looking puzzle!
DLitwin wrote:Thanks for the background on its origin
Yes, thank you. I love hearing about how all these great ideas are born.
Justin wrote:The shape is a 'trapezo-rhombic dodecahedron'. Its dual has some square faces - I don't know if this puzzle would function in that form.
And good job on finding the name of that shape. I love learning some new geometry. If you knew that name off the top of your head I'm very impressed. I'm not sure I'd have even known how to look it up. Here is a good question for the google team... I have a shape in my head and I want to know if its been named... what is the best way to google it?
Carl
_________________ -
Last edited by wwwmwww on Sat Feb 05, 2011 12:18 pm, edited 1 time in total.
|
|
|
|
Top |
|
|
eye2eye
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 12:16 pm
|
|
Joined: Thu Oct 16, 2008 9:46 pm
Location: Littleton CO
|
This is a very cool puzzle!I love seeing all the cool new things coming from you. I would buy one if I didn't need a new phone, valentines day gift, Birthday gift and 6 month anniversary gifts. And if it were for sale.
I found this shape online by searching "shape with rhombic and trapezoid sides" it was the first thing to pop up.
|
|
Top |
|
|
Luke
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 2:20 pm
|
|
Joined: Thu Sep 24, 2009 12:21 pm
Location: Bristol, UK
|
|
Top |
|
|
c1829
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 2:44 pm
|
|
Joined: Sat Mar 06, 2010 8:20 pm
|
This is really awesome. Very cool shape. It looks a little like something Oskar would make.
_________________ -Jacob Hamrick
2x2 PB: 2.36
3x3 PB: 19.89
Tony Fisher wrote:MaCheezm0 wrote:2nd layer using Fisher parts
I very much hope you mean Fisher Cube parts.
|
|
Top |
|
|
Monopoly
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 3:15 pm
|
|
Joined: Sun May 17, 2009 1:33 pm
Location: USA, North America, Planet Earth, Solar system, Milky Way galaxy, Universe
|
|
Top |
|
|
contrabass
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 3:34 pm
|
|
Joined: Sun Oct 28, 2007 5:23 pm
|
There is a reason why the shape has a name. The puzzle you were originally playing around with was a rhombic dodecahedron and the partial turn is the same as a partial turn of its dual, the cuboctahedron. This results in a Johnson solid ( http://en.wikipedia.org/wiki/Triangular_orthobicupola), so it could be said that this is a Johnson Dual, probably the first puzzle of one of these shapes. This opens up a whole new set of shapes.
_________________ as in clarinet
|
|
Top |
|
|
gingervergo
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Sat Feb 05, 2011 7:59 pm
|
|
Joined: Fri Mar 06, 2009 9:23 pm
|
|
Top |
|
|
pirsquared
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Mon Feb 07, 2011 1:02 am
|
|
Joined: Wed Jan 07, 2009 6:46 pm
Website: http://www.eitancher.com
Location: Minneapolis, MN
|
|
Top |
|
|
Sigurd
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Mon Feb 07, 2011 2:08 am
|
|
Joined: Mon Aug 27, 2007 3:50 pm
Location: Copenhagen, Denmark
|
I am frigthened Eric! Good job!
_________________
Tony Fisher wrote: I believe it would work best with black plastic.
|
|
Top |
|
|
Garrett
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Mon Feb 07, 2011 2:58 am
|
|
Joined: Wed Aug 01, 2007 3:14 pm
Location: Alameda, CA
|
|
Top |
|
|
Grégoire Pfennig
|
Post subject: Re: Eric Vergo's Rhomdo
Post
Posted: Mon Feb 07, 2011 3:30 pm
|
|
Joined: Sat Jan 16, 2010 11:48 am
Location: Belfort, France
|
|
Top |
|
|
gingervergo
|
Post subject: Re: Eric Vergo's Rhomdo (updated with viedo)
Post
Posted: Tue Feb 08, 2011 12:18 pm
|
|
Joined: Fri Mar 06, 2009 9:23 pm
|
Just bumping to let everyone know that I have taken a video for the puzzle. It shows off the shape much better than the pictures do.
Video
|
|
Top |
|
|
Luke
|
Post subject: Re: Eric Vergo's Rhomdo (updated with viedo)
Post
Posted: Tue Feb 08, 2011 12:25 pm
|
|
Joined: Thu Sep 24, 2009 12:21 pm
Location: Bristol, UK
|
|
Top |
|
|