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Kiev Savoie
Joined: 25 Oct 2007
Posts: 432
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| Posted: Mon Jul 19, 2010 1:47 am Post subject: DIY Torus Screen |
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I've done a couple of searches for instructions on making a Torus Screen with out much luck. I've found some interesting threads but nothing that shows how to design and then build one. Anyone got a link?
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garyfritz
Joined: 08 Apr 2006
Posts: 12088
Location: Fort Collins, CO
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Kiev Savoie
Joined: 25 Oct 2007
Posts: 432
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| Posted: Mon Jul 19, 2010 8:51 pm Post subject: |
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Thanks Gary!
I just read through most of it and it seems totally do-able. I'm wandering what the depth of the focal field is on a G70 though, the Torus lite concept sounds nice but it just seems like I could push the curves a little deeper for better uniformity/gain and sill get an acceptable convergence. The range i'm seeing so far for 100"+ wide screens has been between 3.5" to 7.5" on the horizontal, so maybe something between those two would work well...
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Fri Jul 23, 2010 2:13 pm Post subject: |
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I think Vince had the G70 at a little more extreme angle. If you mount it with less angle, then you have less issues. Check AVS for a thread I started where there was a list of Torus screens and equipment that everyone was using.
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Kiev Savoie
Joined: 25 Oct 2007
Posts: 432
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| Posted: Fri Jul 23, 2010 11:40 pm Post subject: |
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| Spanky Ham wrote: | | I think Vince had the G70 at a little more extreme angle. If you mount it with less angle, then you have less issues. Check AVS for a thread I started where there was a list of Torus screens and equipment that everyone was using. |
Sounds good! 
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davidcrowe18
Joined: 17 Aug 2010
Posts: 5
Location: Springfield MA
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| Posted: Wed Aug 18, 2010 11:19 am Post subject: |
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The torus works great. I made one for my D50 and two for my 1292s. Each one was larger than the last. Let me know if you need any help.
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Sun Nov 28, 2010 8:17 pm Post subject: |
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anyone here that has a angle calculator for torus screens.
if someone would write a how to build a diy torus, that would be great.
and where can i get the liquid foam to hold the fabric in place.
did you finish your torus screen, kiev savoie?
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1 answer always poses multiple questions.
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dturco
Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland
TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner
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| Posted: Sun Nov 28, 2010 10:36 pm Post subject: |
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| dvh99 wrote: | anyone here that has a angle calculator for torus screens.
if someone would write a how to build a diy torus, that would be great.
and where can i get the liquid foam to hold the fabric in place.
did you finish your torus screen, kiev savoie? |
See Gary's post above ^ 5 up ^ AVS link 5627244 for the Math and the rest for General info. 
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Firefly rules. Can't stop the signal.
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