I built a servo laser set-up (prototype 2) that allows me to control the movement of the laser beam across a curved screen using an X direction servo and a Y direction servo.

Below is the final result of prototype 2:

The problems:

The hot glue on the mirrors makes the mirrors tilt at an angle, and not line up exactly with the wooden sticks.

This curves the laser beam, and does not make it perfectly straight. Furthermore, my set-up was altered many times to get the laser, the mirrors and the screen to line up. Thus, the set-up is overall very messy and filled with scraps of old glue, tape, and wood.