Happy Folding enjoy origami online

This is a flexicube, no? I'm not sure which model you are comparing it, sorry.

-- Sara

In the diagrams Dave says to do two identical constructions. I faintly remember doing two slightly different constructions, but it's been too long. I suggest you make two, and if they don't quite fit together, you can remove the hinges . To ease the process you can at first check with masking tape whether the position of the hinges is correct.

Two examples are Satoshi Kamiya's "Ancient Dragon" and Hung Cuong Nguyen's "Eagle". :)
Both models require several hours of folding, provided you have very advanced origami skills and the right paper for the model. If not, well, let's not talk about that. ;)

-- Sara

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

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

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

By card I mean paper with maybe a weight of 150-200gsm or so.

-- Sara

It always matters what kind of paper you use. Some will work better, some will look prettier etc.
For this model I prefer to take heavier paper for the units, and lighter paper for the hinges. I think in this video I used card for the units, and normal copy paper for the hinges.

Hope this helps,

-- Sara

I watched the video on your 3D Omega star.

Here's my feedback:
Overall, the video seems relatively clear, but I think you could improve greatly by trying the following:

• Please credit the designer, and ask for permission.
• Record in 1st person perspective. Use a solid colour background for more clarity. Visibility right now is ok, but could be better.
• You sometimes jump over steps and for that use special effects. This can be quite confusing, especially if you don't know the model yet. The video is short enough for you to include the steps you removed.
• Use verbal instructions rather than background music, especially on harder steps. Words can clarify what's going on, and not everyone has the same music taste.
• Focus on hard steps. There's no harm in showing some steps in more detail than others. In the end, you want others to be able to reproduce the result. I had the feeling you mostly record yourself folding a model (in such a way that it's relatively visible on the camera), but just letting someone watch isn't always enough.

OK dude Im 9 and I know what sqar 2=.its 1 less than the silver ratio. I always read the encyclopedia

Hm, I'd go for either the rotating tetrahedra by Tomoko Fuse (3 sheets, quite simple - unfortunately I haven't contacted Fuse-san on permission yet), or Kazuo Haga's Tetrahedron: http://www.happyfolding.com/instructions-haga-tetrahedron

The first model should probably take a bit less time, but I think both are suitable for beginners. I think the second one might be more interesting in terms of "Geometry Class", but the first one slightly more fun (because it's an action model).