Laser shutter build out of a motor and stuff. http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2

2. Slide 19 to 21control box

3. Spring torque setup 2

4. Motor torque setup 3

5. Motor 4

6. Motor with screw 5

7. Rotation stage 6

8. Hole for the motor shaft 7

9. ¼ inch screw hole 8

10. ¼ inch screw 9

11. Stage attached to the cylinder 10

12. Stage attaches the motor and cylinder 11

13. 12

14. Parts of spring assembly 13

15. Strips 14 For spring attachment

16. All shutter parts 15

17. Stage attached to the spring 16 One side of the spring will go into the hole

18. 17

19. 18 Fully assembled shutter

20. 19

21. Control Box 20 To the shutter

22. Circuit 21 220Ω 100ΩPOT To motor To Foot-paddle switch 5V input from power supply