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.