This is part of larger kinetic art display case, a new "Kineticon" which will be a coin-op entertainment machine. It's appropriate here as I want to use miniature stepper motors to control 2 axes. I hope to be able to get help from the controls part of the forum.
Started by design in SolidWorks. See video here of basic idea and two degrees of freedom:
"http://www.youtube.com/watch?v=rToTqHKBxC8"]YouTube- Kinetic Art Laser Gun 1.avi
Original Kineticon worked for years and brought in thousands: