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Double Star Flexicube (David Brill): Instructions
10 November 2008 - 8:39am — Sara
Designer:
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Model type:
Paper ratio:
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Check http://erikdemaine.org/thok/amletter.html for instructions on how to get an A-sized paper from letter paper, and http://erikdemaine.org/thok/squareto.html for square to A-sized paper.
By A-sized I mean paper that has the proportions 1:sqrt(2) (see Wikipedia for more). I call it A-sized, rather than silver rectangle, because silver rectangle also refers to a rectangle with an aspect ratio of 1+sqrt(2) (see Wikipedia for more).
Comments
where do you generly buy A-sized paper
I’m just a bit curious where you can buy A-sized paper from.
Almost anywhere in the world
A4 is the standard printing paper size in most countries. I think the only exceptions are the US and Canada. So I'm guessing you live somewhere round there. :)
I have been told that office supplies stores and some stationaries in the US will carry A4-sized paper. I'm not sure how big the selection will be (e.g. colours), but I guess you have to take what you can get. Or you can just choose your preferred paper and cut it to A-sized. There are instructions for this here:
How to get A-sized paper from letter: http://erikdemaine.org/thok/amletter.html
How to get A-sized paper from a square: http://erikdemaine.org/thok/squareto.html
Hope this helps,
-- Sara
thank you
Yeah it seems I may have to go look around a bit more in the some of the stores in the Us. Other wise I'll just keep making A-sized paper like I normally do.
this is a yoshimoto cube
this is a yoshimoto cube created by yoshimoto in 1971
Help Sara, please help
Hi, I was just wondering, since this is a video on the 'double' star flexicube, shouldn't two double star flexicubes make a full double star flexicube? What I mean by a "full" double star flexicube is, well, a thing that has the two able to fit together, and turn as one. I made two, and either I made one of them wrong, or you need to assemble on of them differently. Please, I was really looking forward to making was it was named for. If there is anything you can tell to help me, it would be greatly appreciated, and, even if there isn't, thank you very much for trying.
Combining two constructions
Check the diagrams available at http://brilliantorigami.com/Diagrams.html - page 3 shows the placement of hinges. If you form a star of one of the constructions and a cube of the other one, the star should fit into the cube.
-- Sara
THANK YOU!!!!!!!!!!!!!
I made it! But the pieces tend to fall apart.Can you help in any way?
Accuracy is key
You need to fold quite accurately for the modules to fit together perfectly. Also, there's some pushing and pulling involved to make them move together in all the right places. I only folded this model twice, and it turned out quite stable. But when you're off by just a bit the units (3 modules) don't quite close up, leaving a small hole in the middle.
-- Sara
What kind of paper do you
What kind of paper do you recommend us to use?
Paper choice
I suggest you use slightly heavier paper for the units, and lighter paper for the hinges. In the video I used normal copy paper for the hinges, and card for the units.
-- Sara
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