Beamer is just another word for projector. Used by non-native English speakers that speak German or Dutch.Hm not sure what you are takking about but understand that it is about the fireworks effect, they do look very good. But to me a beamer is a BMW car, google did not really help. Must be an age thing to me?
what i could see of the layout. (many, many pics would be very welcome)
did you project the fireworks from the front, or from behind with a transparent screen?