Just what Edeslash said.
I've done it without using the laser too.

Nice chamber! The puzzle is pretty clever partially because I didn't even solve it yet. I still managed to complete the chamber. There are a couple of problems.

First of all, it's possible to jump from the spot where you find the cube to the other side of the glass panel. It's pretty easy too. You should expand the panel a bit. It's a slight cosmetic harm, though.

And as I'm apparently obsessed with doing things the hard way, I walked on the light bridge to the other side, approached the turret while holding the cube and crouching to avoid bullets and knocked the turret over. A tiny problem. The laser method is much simpler.

And then there's the size thing which Wuggy already pointed out. Not a big problem either. Maybe you could add some white surfaces to places where they do not affect the puzzle at all. They'll make it look better anyway; it's good to have a nice balance of white and black.

And because this comment sounds way too negative than it should,
Good job!

Nice chamber, cool ideas, but Wuggy is right, make the chamber smaller it's to big for it's puzzles. Keep up the cool work =)

It was a bit too big for it's own good, since you end up travelling around by foot a lot and there isn't *that* much stuff.

Not too hard, not too easy. Great job.

Great job Glenn!!