Mounting the Data Projectors

I'm using two Dell S320 short throw projectors for the scenery on the semi-circular screen. As the radius of the screens is 1.5m, these need to be angled downwards at angle of about 30 degrees. Most data projector ceiling mounts don't rotate that much, so I've had to devise my own system for doing this. With one piece of wood cut to an angle of 45 degrees to angle the projector to the right quadrant of the screen and  the other to 30 degrees to point it downwards, I've been able construct a method to resolve this as the image below shows.

Having connected  the mounts to the blocks of wood and the data projectors to the mounts I joined the two projectors together with a  metre length of wood - this was simply to help with the mounting of the projectors on the gantry (temporarily clamped to the kitchen work bench). This image clearly shows the two angles 45 and 30 degrees.

Dell S320 Projectors mounted on their stands and the bar

Finally the two projectors and the bar are mounted on the gantry - hopefully my measurements and calculations will be about right.

In position on the gantry - the screen behind

The next step will be to power them up and make some basic adjustments before connecting everything else up...........