I've been looking at that calculator. I'm getting a little confused on some parts of it. The pole mount length is what is recommended for the the projector mount right? With my numbers punched in, it is suggesting a throw of 18' 11". That is right about to the point where I can actually wall mount the projector. I just don't want to get everything mounting and turn it on to find out the fan blades are blocking part of the image. I am assuming that since the fan blades are 12" from the ceiling that that is the highest the top of the screen can go with the blades interfering with the image.
Yeah I know it's going to be tricky to get that screen up without it looking like crap. I just didn't want to go with an electric or manual pull down screen. I am trying to think of a way to do it with maybe so legs off of a fold up table, and do it where it looks good and not thrown together.