Acrylic mirror sheet

Finally, the mirror sheet has arrived! I took it to 3D teacher Pete and he said that he has to look if it's suitable for laser cuter, because some kind sheets can damage the machine. These news really scared me, because I had only a week left till the dead line and I sure didn't wanted to change my idea.
But everything was fine and all i needed to do was to draw little squares with 2D design program. Laser machine cuts everything in the same order as you draw it. I didn't knew that and draw everything like this :

Pete said that it's not going to work because my squares are really small and the plastic pieces are going to fall  inside while they are still not cut as a squares. Then I tried to draw something like that (all squares separately ) :

But it would have taken 50min to cut everything!

In the end Pete figured how to cut these small squares :

Laser cuts everything in this order :

1. Black lines
2. Green lines
3. Red square (edges)
4. Repeat everything with the next square

While laser machine cut little mirror squares I was peeling of the protective layer from each and every little piece ! Not to mention that now I have about 900 pieces, the protective layer is burned to the surface and it is really hard to peel them off...

It is going to take me ages even to peel these layers off, that's why I changed my mind about making lots of mirror cubes. Also, I want a lot of small mirror pieces and to make one cube I need 6 pieces. I strongly believe that it wouldn't be enough (900/6=150 cubes). So I am simply going to glue two mirror squares one to another (900/2=450 mirror pieces).