To be perfectly clear about this screen, it's a fantastic alternative to buying a screen for $300. This was my "bandaid" screen until I got a real screen. I'm perfectly happy with it. Real ones reflect back from the crystals. This isn't that.
- I had to cut mine down a few inches so it's not 100" now. (An aspect ratio thing)
I've been using a projector for a few years now and projecting always looks bad on bed sheets, 40" press paper, wax paper and yes, even white walls. I needed something big, cheap, and light. My first attempt was with a 4'x3' .25" sheet of plywood that was super heavy and expensive. Here is what I did, and how I did it. I'll go through the easy steps. The only time consuming part is the painting
Here is a list of what you will need.
1. Paint - Make sure to use latex as I first tried some Krylon spray paint and it melted the foam. One quart of Behr "Silver Screen" (it's light gray - yes light gray). It's normal latex paint found at Home Depot I believe. If you can get a better deal on another brand just use the paint chip to have them match it. If you can't find it just get light grey. Buy flat or eggshell. No semi-gloss or gloss. Using matte/ flat hides most imperfections.
2. One, 4' x 8' x 2" (actually 1.5" thick) sheet of Pink Panther (or other?) ridged Styrofoam insulation . Look for the smooth stuff and pick one out without any dents. Some is stamped on one side and smooth on the other.
3. optional - Four, 1/2" x 2.5" bolts , 8 nuts and 8 big washers. (see "Hanging It" section)
If anyone does this, will you post a picture on this instructable? I'd love to see it, and see what you changed.
Step 1: Lights on - Scale - Frame of Reference
As a frame of reference, see the picture with the lights on. My screen is angled as it's in the corner. It's also angled down as my projector is on my desk. Everyone mounts it differently so disregard this. The picures are more to show the scale rather than how i mounted it.
Back-lighting is mentioned later as well.