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A multitouch project.

... more info coming soon ...

...

quick sketch of 2nd projector test

super cool resource for how to make a Multitouch table           cool guys who lent me some hardware



PHASE TABLE  (random notes)

* need to check ASAP:
- how far the ultrathrow tosses. Can it be mirror reflected (before optimal distance, what if I butt mirror up against edge, instead of 10 inch away))?
- how far I can reach across a table (edge in gut, could i reach around 60"?)
- how far does OptiTrack need to see screen? 

pray that it isn't too bright for opti to contrast down and see blobs.

* eventually test:
- any benefit to 2 optitracks?" could they pick up hand floating in space (from cone overlap)
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PLEXIGLAS 7D006 recommended for projection surface (MSSurface uses it)
http://nuigroup.com/forums/viewthread/4685/

Sold here $47.95 USD/sqft 
(ACRYLITE® Rear Projection, sheet, Grey 7D006 RP - 0.197 " thick, 5mm)
http://www.acrylite-shop.com/US/us/acrylite-rear-projection-ch9uyj0zi6b/acrylite-rear-projection-grey-7d006-rp-e3g32h0p9ro~p.html?know=search%3A7d006
$575.40 for 3'x4' sheet (12 sqft)
$255.74 for 32"x2' sheet (5.3 sqft)
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ACRYLITE® EndLighten recommended for IR illuminated tracking surface
http://www.acrylite-shop.com/US/us/sheet/acrylite-endlighten-crfo8s7j0ro.html
XL (.236", 6mm)	$13.99/sqft
XXL (.315", 8mm) 	$19.45/sqft
[+1.5" on each side - to let IR LED spread]
(51"x39") = $198.24 for XL sheet, $273.65 XXL (+75.41)
(35"x27") = $96.81  for XL sheet, $132.64 XXL (+35.83)


thus, screens alone cost at least:
60" = $773.64
40" = $352.55

... plus maybe a sheet of glass to hold it up? and a protective cover?
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NEC WT610 SPECS:
The unit can accommdate screen sizes from 40" (81.3 cm/32.0" W x 61.0 cm/24.0" H) 
to 100" (203.2 cm/80.0" W x 152.4 cm/60.0" H). 

(60") - 36" x 48"  - 10.3543307 inches away
(40") - 24" x 32"

Screen size - Height x Length (m)  	Throwing distance*
40" (0.6 x 0.8)  			6.4 cm
60" (0.9 x 1.2) 			26.3 cm
80" (1.2 x 1.6) 			46.1 cm
100" (1.5 x 2.0) 			65.9 cm


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MS Surface is a 30-inch (76 cm) display in a table-like form factor, 22 inches (56 cm) high, 21 inches (53 cm) deep, and 42 inches (107 cm) wide
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DESIGN 1
http://nuigroup.com/forums/viewthread/8732/

Technlogy: FTIR (DSI?)
Projector: Epson EMP-400W
Camera: Infrared Web Camera for Multitouch Screens (850 nm band pass filter) (7-pack including 2.1, 2.8, 3.6, 6, 8, 12 and 16 mm lenses)
Top Layer: Evonik Röhm 7D006 RP
Bottom Layer: Acrylics: Endlighten 10mm
Frame: LED Strip (0.375 in. glass) Aluminum DEEP Channel, 98 in. long, Brushed Nickel
Frame Material: 1/4” x 3/8” x 4” Neoprene Setting Block
LEDS: Dimmable LED Strip Light High Brightness with 5050 LEDs, 60/m, by the 5-meter reel (Infra Red 850 nm) Part No. irrf850-5050-60-reel
Aspect Ratio: 16:10
Dimensions: 60” diagonal
Enclosure: table with interface on top 

Top Layer: PLEXIGLAS Gallery®, Platte, Farblos 0A007 MR2 3mm
Middle Layer: Evonik Röhm 7D006 RP
Bottom Layer: Acrylics: Endlighten 10mm 

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DESIGN 2

My DSI Project:

DSI Table
Proj.Surface: 7D006 on top
2x PS3 Camera from Peau with 850BF & 3.6mm lense
Endlightend XXL (10mm)with 850nm LED strip

Projector: SANYO DWL100 ~ 950€

PC:
Core i5, 8GB Ram, HD5850 
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DESIGNs
http://nuigroup.com/forums/viewthread/42/P15/
http://nuigroup.com/forums/viewthread/8047/
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acrylic sheets can't support weight? (depends on thickness yeah?)
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