Bring the cube down about halfway between you and the platform you're standing on. Hit
to fall onto the cube as it moves towards the laser. Generally, jumping before the switch puts you into the circular saws, although I do it in the video. Work to stay on the cube by moving right, possibly jumping onto another side. Once the coast is clear, jump to the left and hit
to fall towards the exit door, then
to apply the brakes and slide into it.