Originally Posted by atlmaximus
Hello All, Thanks for this forum and help you relay. I am in process of doing my home theater room and have a need to build an AT screen which will be 150"-160" 16:9 (likely 150"). The projector is Epson 5040UB. Some things below would be very helpful. Any insight is appreciated. I am reading some of the other threads and doing best to learn.
Steel yur wul....here it comes...........
1) Since I have not built the wall that will hold the screen, I need something temporary to use to fine tune seating, projector location, etc. I read some folks used fabric from JoAnn. Any recommendations on what I can use temporarily?
Actually I strongly suggest you build the Screen your going to use and use that for all your "zero'ing" in. You need to have it be the same size anyway to make your ad-judgements so....................
2) I hear Spandex is the way to go for AT screen. In my case, the wall I am building that will hold the screen will have ~4ft of space behind it to house some equipment. Reason 4ft because there is an exit door behind screen. I would need to ensure we can lift the screen up to access equipment and door behind.
Spandex is extremely popular as of late, becuase of it's excellent audio performance and ultra smooth surface.....oh yeah,it also costs a dime to a dollar compared to almost every other AT Material that can even come close to it's performance...and very few do anyway.
3) What specific material do I need? I am reading I need White over Black.
You have that correct. White & Black Milliskin Spandex
For a 150" Screen, and using the 5040, I gotta suggest that you consider a 2.39:1 Screen and use the 5040's excellent Lens Memory feature to have what is called a Constant Image Height" screen. That is pretty much a prerequisite unless you move into using different Spandex that comes in 120" widths
4) Any thread out there that shows the frame build? I am new to some of this and am a visual learner.
Why go searchin' ?
However...you must also be advised that the construction of any 150" diagonal Frame, either 2.39:1 or 16:9 requires finding 1x3 or 1x4 Lumber in 12' lengths...."straight" 12' lengths. Otherwise the Frame must be constructed of 2x4s & 2x3s....also carefully selected for straightness...no bends, twistesor curves.
The two Diagrams below are based on using 1x lumber. If using 2x Lumber becomes necessary, then the measurements will be / must be adjusted accordingly.
5) In terms of equipment, I have a miter saw and circular but no table. I can get the wood cut to measurement at local HD so shouldn't be an issue. I assume I need a stapler as well. Any recommendations? Any other equipment?
Thanks again for this forum. Please let me know if any other questions.
It is well advised to make the purchase of a Kreg Pocket Screw Jig Kit.
The Stapler I suggest is the Arrow Overhand Stapler (using 1/4" or 1/2" Staples )
Just so you know.....the 5040 will produce the following Foot Lambert brightness on the 0.7 Gain spandex Screens your wanting.
(Throw distance is shown as being at the optimal distance )
150" 16:9 @ 15'-6" throw 25 fl
150" 2.39.1 @ 16'-3" throw 23 fl
A 150" 2.39:1 C.H.I. Screen will provide a 58" x 103" 118" diagonal screen w/34 fl.