Fabric Screens - Page 6 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #51 of 57 Old 06-30-08, 08:03 PM
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Re: Fabric Screens

Unless I can find or figure out a way to easily tension the satin, I think I'm pretty much done with it. While the projected image looks good, it would be a VERY delicate screen; I can't imagine anything harder than a thrown ping pong ball not damaging this fabric, and I'm not even sure about the ping pong ball.

If I can get some creases out of the material, I may put it up again and take some photos if there is enough interest. As for me, it's a painted screen all the way baby!

I would be happy to spectro anything you want to send me Prof., and while I can't speak for mech, I'm pretty sure he would to.
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post #52 of 57 Old 06-30-08, 08:13 PM
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Re: Fabric Screens

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MACCA350 wrote: View Post
Is this the kind of instrument that would be used to fully test the properties of a screen material. Will it give an indication of gain or do you need other equipment for a full analysis?

cheers
The newer spectros (like mech has) can be used to make screen gain measurements, but my old DTP22 can't; it measures reflectance only, and not a transmission source. It theory it could, but no software is available to do it.

To fully test screen properties you would also need a Glossometer to measure gloss; no spectro I know of can do that too.
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post #53 of 57 Old 06-30-08, 08:18 PM
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Re: Fabric Screens

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Harpmaker wrote: View Post
Unless I can find or figure out a way to easily tension the satin, I think I'm pretty much done with it. While the projected image looks good, it would be a VERY delicate screen; I can't imagine anything harder than a thrown ping pong ball not damaging this fabric, and I'm not even sure about the ping pong ball.
That's pretty much what I found with the satin material that I tried. Also caused stretch lines once the material was attached to the frame.....very delicate. I simply abandoned the material as was too difficult to work with, and the end result was very poor uniformity.

cheers


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post #54 of 57 Old 06-30-08, 08:30 PM Thread Starter
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Re: Fabric Screens

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I would be happy to spectro anything you want to send me Prof., and while I can't speak for mech, I'm pretty sure he would to.
I might just do that..
I have two large plastic rubbish bags, full of test materials..There just might be some of the SilverPVC in amongst it all..

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post #55 of 57 Old 07-14-12, 06:43 AM
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Re: Fabric Screens

Sorry to bring back such an old thread, but it has been a very good source of information on screen material for me.

I was just wondering if anyone else had tried Nulon, in particular if they wet it before stretching it over a frame?
If this method of stretching stops it from getting loose and saggy in humid/wet weather or if the material gets wet, I'll probably use it for my first screen.

Cheers,
Pepe.
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post #56 of 57 Old 07-14-12, 08:50 PM Thread Starter
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Re: Fabric Screens

Hi Pepe,

I doubt whether anyone on the forum has used Nulon for a screen as I've never seen it brought up again..
Wetting the material before stretching it over the frame may work..but I'm not sure if it would still stretch further by humidity after the initial drying out..You can only try it I suppose..

The other way of stretching it would be to use the same mounting method that is used for AT screens..
Eyelets are fixed to the edges of the material around the whole perimeter at evenly spaced intervals..
Then you attach little hooks around the inside perimeter of the frame.. and using strong rubber rings, the material is attached to the hooks with the rubber rings..
This provides even constant tension to the fabric, which would compensate for any movement in the fabric caused by moisture..

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post #57 of 57 Old 07-15-12, 07:36 PM
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Re: Fabric Screens

Hey Prof., thanks for the reply.

Fair enough. I was just hoping to have something that performed a bit better than BOC for my first DIY screen.
I read earlier in this thread that someone tried the same method with the hooks/eyelets, but the springs fully contracted and the Nulon still went slack.

I'll look into Dazian instead.

Cheers,
Pepe.
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