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 Post subject: The Doctor CubePosted: Sun Jan 15, 2012 4:48 pm

Joined: Thu Dec 02, 2004 12:09 pm
Location: Missouri
All,

I'd like to introduce my newest puzzle. This is the Doctor Cube. Like the Doctor Skewb it is a slice-turn-only mixup puzzle. Others have been asking for a Doctor Skewb with a real Skewb core, Bram being a prime example, but I decided to go an easier direction. No one has yet made a Mixup Cube without a real 2x2x2 (or Fused Cube) core. So thus is born the Doctor Cube.

VIDEO

3D PDF

Solved

After 1 Turn

After 2 Turns

Partially Scrambled

Nearly Solved. Just one edge pair in the wrong orientation.

This puzzle was hinted at here.

Since this is a slice turn only puzzle, two opposite pieces are in effect locked together to form one piece. So you can view this puzzle as having 3 pairs of opposite face centers and 6 pairs of opposite edges. This is the x=9 moveable pieces mentioned in the hint. Each piece/pair has 8 (x-1) possible orientation though as stickered that full orientation information is only seen on the edges. And I have 9 (x) stickers on each face. Jared pointed out that this property is shared with the Junior Pyraminx. I could also point out that both puzzles have 2*sqrt(x) faces. I found that interesting. Granted the Doctor Cube is a bit harder then the Junior Pyraminx but its actually the first puzzle I've designed that I can solve on my own. This will likely be the easiest puzzle I'll design for some time.

This puzzle was also a testbed for an idea I've had which I should be able to use to improve the Thorny Cube. It wasn't till I made this puzzle that I fully understood the "reason" Oskar is talking about here.

VIDEO

3D PDF

Enjoy,
Carl

P.S. If someone wants to remove the background from these images PLEASE pm me.

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Last edited by wwwmwww on Sun Jan 15, 2012 5:04 pm, edited 1 time in total.

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 Post subject: Re: The Doctor CubePosted: Sun Jan 15, 2012 4:58 pm

Joined: Thu Sep 24, 2009 12:21 pm
Location: Chichester, England
Awesome puzzle Carl! I was just thinking whether it would be possible to make a Doctor Thorny Cube, by which the circles are attached to the middle layer. I'm not sure if it's possible, but it would be a nice combination of your puzzles to see.

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

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 Post subject: Re: The Doctor CubePosted: Sun Jan 15, 2012 5:02 pm

Joined: Sun Dec 06, 2009 9:00 am
Nice puzzle Carl. I really like the back to basics feel this has. Would this be considered a doctrine puzzles? If it is I wonder how many other puzzles were made with out ever having a doctrine puzzle made first.

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 Post subject: Re: The Doctor CubePosted: Sun Jan 15, 2012 5:22 pm

Joined: Thu Dec 02, 2004 12:09 pm
Location: Missouri
boublez wrote:
Would this be considered a doctrine puzzles?
Yes. Though the Mixup Cube is also a doctrinaire puzzle.

Carl

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 Post subject: Re: The Doctor CubePosted: Sun Jan 15, 2012 5:52 pm

Joined: Tue Jan 01, 2008 7:30 pm
Location: Texas, USA
I believe I have seen a spherical version of this somewhere, but at the moment, the best I can find is this.

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"I discovered the triangle one day while shaving. I trimmed my beard like the intersection of three circles and noticed how I could unfog a square in the bathroom mirror by rubbing my beard circularly against the glass."-Franz Reuleaux

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 Post subject: Re: The Doctor CubePosted: Mon Jan 16, 2012 11:04 am

Joined: Mon Aug 02, 2004 7:03 am
Location: Koblenz, Germany
wwwmwww wrote:
boublez wrote:
Would this be considered a doctrine puzzles?
Yes. Though the Mixup Cube is also a doctrinaire puzzle.
And there are NO stored cuts.

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 Post subject: Re: The Doctor CubePosted: Mon Jan 16, 2012 5:13 pm

Joined: Thu Dec 02, 2004 12:09 pm
Location: Missouri
For Andreas, the edge length is 60 mm and the puzzle weighs in at 44.9 grams.

Carl

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 Post subject: Re: The Doctor CubePosted: Mon Jan 16, 2012 6:52 pm

Joined: Wed Jan 07, 2009 6:46 pm
Location: Evanston, IL
That turns really nicely, Carl. Seems like you're getting the hang of Solidworks!

-Eitan

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 Post subject: Re: The Doctor CubePosted: Sun Mar 04, 2012 11:13 pm

Joined: Thu Dec 02, 2004 12:09 pm
Location: Missouri
The Doctor Cube is now for sale on Shapeways. You can get it here:

http://www.shapeways.com/model/407559/

I've also cleaned up some of the above pictures this weekend. I'll try to get the last 2 this week.

If there is interest in dyed, assembled, stickered, and broken in puzzles please PM me.

Carl

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 Post subject: Re: The Doctor CubePosted: Sun Mar 11, 2012 1:12 pm

Joined: Thu Dec 02, 2004 12:09 pm
Location: Missouri
Finally got the last 2 images cleaned up today.

However it looks like Andreas beat me to the punch. I notice the entry in the museum already has cleaned up copies of these images. Oh well, its been nice practice with GIMP. It still take me over 30 minutes per image so I still feel there has to be a faster way.

Carl

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 Post subject: Re: The Doctor CubePosted: Sun Mar 11, 2012 1:18 pm

Joined: Tue Mar 10, 2009 7:06 pm
Location: Nowhere in particular.
wwwmwww wrote:
It still take me over 30 minutes per image so I still feel there has to be a faster way.

In photoshop I might use the magic lasso or the magnetic lasso for these images, it would probably take me 5-10 minutes to get it perfect. Does GIMP have a similar feature?

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~Kapusta

PB: At home (In Competition)
2x2 1.xx (2.88)
3x3 11.xx (15.81)
4x4 1:18.26 (1:24.63)
5x5 (3:00.02)
6x6 4:26.05 (6:34.68)
7x7 6:38.74 (9:48.81)
OH (35.63)

Current Goals:
7x7 sub 6:30
4x4 sub 1:10

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 Post subject: Re: The Doctor CubePosted: Sun Mar 11, 2012 1:35 pm

Joined: Thu Dec 02, 2004 12:09 pm
Location: Missouri
Kapusta wrote:
In photoshop I might use the magic lasso or the magnetic lasso for these images, it would probably take me 5-10 minutes to get it perfect. Does GIMP have a similar feature?
GIMP has a lasso but at present I'm still tracing out the object manually at 16x magnification of the original image. I haven't come across a "magic" or "magnetic" feature yet but I've just started using it.

Carl

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