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 Post subject: Bridge CubesPosted: Wed May 15, 2013 3:39 pm

Joined: Fri Mar 18, 2011 10:41 am
Location: Passau, Germany
Hi all,

when I had the following idea, it was immediately clear to me that this could not be new.
And indeed, forum member TM-MaxWiz
had posted it 10 years ago. Nevertheless, as it is a super simple mod (and thus compatible with my
woodworking skills), I decided to build it. Since I did not find another name, I called it "bridge cubes".

The idea is to build little bridges connecting the holes of a Rubik's game cube. In this way one cannot just
realize traditional bandaging, but also bandage for instance neighboring corners together.
By building bridges of different heights, it is also possible to control which bridges can pass beneath one another
and which cannot.

Besides the Rubik's game cube, I needed wood material that cost me less than 2 Euros at the local
DIY store. If you don't have a Rubik's game cube, you can also fill the cubies of a regular Rubik's cube
and drill holes.

Here are some example bridges I built:

Tower Bridge and Siduhe Bridge (the highest bridge in the world)

Golden Gate Bridge and Sydney Harbour Bridge

Oresund Bridge (The resulting cube has four bandaged corners and is similar to an edge-only cube.)

Notice that the Tower Bridge can go under the Sydney Harbour Bridge, whereas Siduhe Bridge cannot. In the midlle position, Golden Gate Bridge does not allow the central band to turn, so it acts effectively like a 1x1x3 bandaging across a face center. Clearly, it is also possible to build a bridge like it of medium height. A bridge connecting a corner to a center would be the equivalent of a 1x2x2 bandaged part of the cube. A further suggestion of TM-MaxWiz, namely to build poles that prevent individual cubies to pass under bridges, has not yet been built by me, but is on my TODO list.

Here are some basic examples of bridge cubes that you may want to try out:

Bridge Cube, Type t ("Simple Crossing")

Bridge Cube, Type H ("Double Crossing")

Bridge Cube, Type E ("Picnic Table")

Bridge Cube, Type HI ("Hello World")

Bridge Cube, Type -T- ("Smiley")

When you are done playing with the bridge cubes, you can store everything nicely in the original Rubik's game cube packaging:

Enjoy,
Martin

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 Post subject: Re: Bridge CubesPosted: Thu May 16, 2013 6:22 am

Joined: Tue Oct 13, 2009 1:13 am
Location: Saint-Petersburg, Russia
Extremely perfect and simple implementation! Great!

P.S. Your definitely should create Golden Gate Bridge cube!

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 Post subject: Re: Bridge CubesPosted: Thu May 16, 2013 6:31 am

Joined: Fri Nov 05, 2010 2:20 am
Location: Wherever
Interesting. You could also make a bridge that connects a corner and an edge on opposite sides of a 2x3 rectangle on a face.

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 Post subject: Re: Bridge CubesPosted: Sun May 19, 2013 6:50 am

Joined: Mon Jun 30, 2008 8:38 pm
Location: Russia
very interest Puzzle

where did you get those tiles? or you drill a hole?

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 Post subject: Re: Bridge CubesPosted: Sun May 19, 2013 7:22 am

Joined: Sun Oct 31, 2010 2:24 am
Wow ! I really like it because the idea is very simple but the number of possibilities is huge !

My most favorite mods are realy those around the 3x3x3 !

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 Post subject: Re: Bridge CubesPosted: Sun May 19, 2013 9:29 am

Joined: Sun Mar 27, 2005 7:37 pm
Very nice puzzles. I like the way there are lots of variations of the bridging. I'd also like to see some curvy round the corner bridges or would that be a bridge too far?

grigr wrote:
very interest Puzzle

where did you get those tiles? or you drill a hole?

I forget it's name but I can see he has used the factory made game / cube with the little white pegs and holey tiles. One of the photos shows it in the holder which comes with the game.

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 Post subject: Re: Bridge CubesPosted: Sun May 19, 2013 9:49 am

Joined: Fri Mar 18, 2011 10:41 am
Location: Passau, Germany
Hi everybody,

Thanks for the nice comments.

iaroslavski wrote:
You definitely should create a Golden Gate Bridge cube!

Yes, good suggestion. I called the medium long low bridge "Golden Gate Bridge". One could try to use it to make a nice cube, e.g. by extending it on the sides with bandaging representing bridge-heads.

rubikcollector123 wrote:
You could also make a bridge that connects a corner and an edge on opposite sides of a 2x3 rectangle on a face.

I will try that, too. For the time being, I think that two "Golden Gate Bridges" or two "Sydney Harbour Bridges" next to each other would do the same job, but the bridge you suggest looks much nicer and the cube is less crowded.

grigr wrote:
Where did you get those tiles? Or did you drill a hole?

The cube is from "Rubik's Game". It has already tiles with holes in it. Of course, if you have thick tiles you could drill your own holes. For the bridges, it was enough to buy and cut a 5 mm thick, round stick and a suitable bar into which I drilled holes. (1 m stick and 1 m bar cost 1 Euro each.)

Tony Fisher wrote:
I'd also like to see some curvy round the corner bridges or would that be a bridge too far?

I don't think a bridge can go too far. But "curvy" bridges will most likely exceed my wood working skills.

After I return from a conference, I will do some more wood working and post the results.
Best wishes,
Martin

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 Post subject: Re: Bridge CubesPosted: Sun May 19, 2013 1:36 pm

Joined: Mon Jun 30, 2008 8:38 pm
Location: Russia
You need build Tower (or Beacon) for center parts
also please publish Video with this great Puzzles

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 Post subject: Re: Bridge CubesPosted: Sun May 19, 2013 10:27 pm

Joined: Mon Jun 30, 2008 8:38 pm
Location: Russia
Tony Fisher wrote:
I forget it's name but I can see he has used the factory made game / cube with the little white pegs and holey tiles. One of the photos shows it in the holder which comes with the game.

Thank You

http://www.ebay.com/itm/Vintage-1982-Ru ... 0893016469

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 Post subject: More Bridge CubesPosted: Mon May 20, 2013 3:12 am

Joined: Fri Mar 18, 2011 10:41 am
Location: Passau, Germany
Hi everybody,

Thank you for your suggestions for more bridge cubes. Last night I did some wood working, and here are the results.

grigr wrote:
You need build Tower (or Beacon) for center parts.

The "Eiffel Tower" does not pass under low bridges, but passes under high bridges.

The "CN Tower" is quite high and does not fit under any bridge.

The "Bosporus Bridge" is the equivalent of a 1x2x2 bandaged part of the cube. The "Chesapeake Bay Bridge" acts like two "Sydney Harbour Bridges" next to each other.

The middle band passes under the "Golden Gate Bridge" if it is placed on an edge. It does not pass under a centrally placed "Golden Gate Bridge". Therefore I also built a medium high bridge of the same length, the "Pearl Bridge".

The middle band passes under a centrally placed "Pearl Bridge", and the "Pearl Bridge" still fits under the "Sydney Harbour Bridge".

The next job will be to construct a few nice bandaged cubes utilizing those additional bridges.

Enjoy,
Martin

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 Post subject: Re: Bridge CubesPosted: Mon May 20, 2013 7:15 am

Joined: Mon Nov 30, 2009 1:03 pm
I love the modularity of your design! Here is some more inspiration for bridged puzzles: Handlebar Cube, Carry-a-Cube and Conslide.

Conslide is a 2D sliding version of your bridges puzzle. It is amazing how difficult puzzles can become with just one or two bridges.
Attachment:

Conslide.jpg [ 18.27 KiB | Viewed 1982 times ]

Oskar

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 Post subject: Re: Bridge CubesPosted: Sun Jun 02, 2013 9:12 am

Joined: Fri Mar 18, 2011 10:41 am
Location: Passau, Germany
Hi everybody!

@Oskar: Thank you very much for the links to your related mods.
Finally I found another similar, even older cube that I remembered:
Hooked on the Cube

Using the Bridge Cube design, one can realise the hooks via the following Avignon Bridge:

This Avignon Bridge prevents other bridges to "pass by". My version sits very tightly and thus does its job, but for added stability one could consider using square holes in the tiles and poles having square cross sections.

@iaroslavski: How do you like the following suggestion for a Golden Gate Bridge Cube:

It scrambles well, and (at least for me) it is not too easy.

Enjoy, best wishes,
Martin

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 Post subject: Re: Bridge CubesPosted: Mon Jun 03, 2013 9:10 am

Joined: Tue Oct 13, 2009 1:13 am
Location: Saint-Petersburg, Russia
Fantastic!

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 Post subject: Re: Bridge CubesPosted: Sun Mar 30, 2014 10:50 am

Joined: Mon Jun 30, 2008 8:38 pm
Location: Russia
I build my Bandaged kit on ShapeWays for "Rubik's Game".
3 types of parts: Bridge, Beacon and Berth. 4 types of Tower size.
viewtopic.php?f=15&t=27086

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