I’ve been building the DIY acoustically transparent screen. I started with a cardboard mock-up to experiment with the projector and determine the final size. The frame is made from 1x3's and metal corner supports. I learned a few things from the DIY Screen section here on AVS. To avoid reflections from the frame I mounted the vertical supports from behind and painted them and the interior edges the same Dark Cavern color of the screen wall. I mounted two "cleats" to the wall which will hold the screen by a 1x2 that is anchored to the back of the frame.
Here is a test fit of the screen. The unpainted frame can be clearly seen through the fabric. This will not show as the projected image area will be to the inner edge and the face will be covered by the 3 ½ inch trim border.
I wrapped the trim border in stretch velvet from JoAnn Fabrics and stapled it to the back.
Looking like a fish out of water, the screen lays on the floor with the trim border placed and ready to attach.
The screen fabric is a Polyester/Spandex (10% I think) blend from JoAnn’s. I purchased 7 yards of it and attached 2 layers of the material, had zero leftover or to trim but, didn’t feel like it had to be overstretched to fit. The surface of the screen is 3” off the wall. The distance from there to the front of the Panasonic AE2000 lens results in a throw of 15’ 5” and sets the diagonal size of the 2.40 to 1 cinemascope screen to 148”. Size of the screen is 56.75” x 137.50”. The distance from the screen to the first row is 12’ 4” and the second is 16’.
Last night after I had finished the screen and just connected the front, center and surround speakers, my wife came down to check on things. Perfect timing! So I put on Quantum of Solace and together we both got the first taste of the theater watching the first few scenes. Right away we looked at each other and had the “oh my, this is going to be something!” moment. Then I said “this is without the subwoofers connected”. It was also without the bass shakers, any fine tuning of the projector or sound system or acoustic treatments. Edited by dvmiller - 6/20/13 at 8:20am