I'm making a device that has mirrors on motors and a laser pointed so that it reflects from one motor to another ( 3 motors in total ). The idea is to point it at a wall. and draw circles and stuff. the picture depends on the speed and direction of the motors. The motor part is good, and almost ready, but I need a laser to fit this jobs description.
The problem is that I don't know how powerful of a laser to get, those pathetic 1 mW laser pointers are .. well.. pathetic, but I don't want to burn a permanent track along the lines on the wall either . I'm hoping you guys can suggest a resonable power level for a laser used in this way.
In my mind, what might make it more difficult is that in a way, the light is spread out in a larger area, so a more powerful laser could be used maybe?
The problem is that I don't know how powerful of a laser to get, those pathetic 1 mW laser pointers are .. well.. pathetic, but I don't want to burn a permanent track along the lines on the wall either . I'm hoping you guys can suggest a resonable power level for a laser used in this way.
In my mind, what might make it more difficult is that in a way, the light is spread out in a larger area, so a more powerful laser could be used maybe?