Origami Sculpture Puzzle: 4 Intersecting Cubes

Howzit guys and girls :)
It's been a while since my last instructable, so I thought I'd jump back in with something tricky. I saw a pic of this on the internet somewhere, i think it was originally done by Dirk Eisner. The folding on this model is really simple, but the weaving is extremely hard! Just the kind of stuff I love. More time making the puzzle, less time making the pieces.

You will need:
Patience. Lots of it.

48 2x1 rectangles.

OK lets go!

Step 1: Baby Steps

Start white side up.

Valley fold in half, then in quarters. You should know the drill by now :)

Step 2: The 45 Degree Angle

Follow the pictures. These folds give us a 45 degree angle. Repeat at the top.

Step 3: The Pockets

Fold the left side of the paper to the middle, and form a pocket by reversing where the (new) left edge meets the 45 degree fold. Repeat on the right hand side.