Goodmorning everyone
thanks to this beautiful and very useful forum, unique in its kind. Sorry for my bad english. I'm Davide from Italy. Passionate about lasers since childhood. I was 13 when I saw this videoclip (https://www.youtube.com/watch?v=cgONWacjrT0) and fell in love with that "green ray".
Years have passed, and only back in 1990 I managed to get my first red projector with a 650mW he/ne tube and two rather basic galvos that reproduced simple figures (circle, square, waves) at a reasonable price, around $ 2,500. I was thrilled.
More recently, thanks to the diodes, I made some small projectors, 50mW green with a diode of a pointer, then an RGB of about 500mW and one of 1500mW. Considering that I am a hobbyist and I will hardly EVER recover all or part of the money invested. My laser shows will perhaps be used in 1/2 evenings in a year, with friends, and for pure passion. Struck by sudden madness, I decided to grow further.
I purchased 2 empty used cases, (thanks to fb and Emile, a very nice French guy) 2 rgb modules from Optolaser and i'm building a pair of 6000mW rgb projectors. They will be driven by internal Fb4 and Quickshow.
Perfectly aware of the danger of these tools, I state that they will be used exclusively by myself and any shows will be made with the basis of notions of safety: 2 meters min.lateral distance from the body of people and min.3 meters above the heads.
The projectors have a remote safety system with E-stop which operates a solid-state relay that immediately cuts the driver's analogue voltage, completely obscuring the lasers. I wanted some advice if I need to implement another safety system for my projector (rotary actuator / mechanical shutter?)
Sorry for the long post and thanks very much everyone.