[Vanhackspace] Info for next week's table

[Austin]

Im doing a homedepot run this weekend I could probably pick up the
acrylic.  Also what size mirror do we need?  I have a handful of
halfbroken ones kicking around.

-a

Joe Bowser wrote:
> Hey
>
> This was going to just go to Dallas, but I'd figure I'd do a call out
> to the list to see if we can get certain materials by this Tuesday for
> Multitouch night.
>
> Currently, I have the following tools to create a Multitouch Screen:
>
> - Projector
> - OSFRAM SFH485P IR LEDs (About a pack of them, very bright when shot
> with a camcorder!)
> - Modified WebCam (Removed IR Filter, Added Chunk of Developed Film to
> filter visible light)
>
> I need to get the following:
> - Acrylic Sheet (18" by 24", available at Home Depot)
> - Frame (Can be wood, but Aluminum apparently works better)
> - Diffuser (Tracing Paper works fairly well, can get an 18" by 24"
> sheet of this as well)
> - Mirror
>
> Also, it'd be good to try out two techniques.  If we're going to do
> FTIR, we need the following:
> - Transparent Silicone Rubber (Sorta-Clear
> 40) http://wiki.nuigroup.com/Compliant_surface
>
> The last time I priced this, the most expensive thing was the
> Sorta-Clear 40, the cost breakdown should be like this:
>
> - WebCam ($0 to $30)
> - Exposed Film from Urban Source ($0.25)
> - Acrylic Sheet ($25 ~ $50)
> - Diffuser - ($2 - Used Elastics and Tracing Paper)
> - Mirror - ($6 crap mirror from the nearby Shoppers on Commercial Drive)
> - Picture Frame - ($25)
> - Wood ($40)
>
> I didn't buy Sorta-Clear, which is why I never released the prototype
> (without the complaint surface, it doesn't work well).  However, by
> using DI, we might be able to get it working more quickly (plus if
> people put/spill beer on it, the silicone won't get all funky).
>
> More info is on the NUI Group Wiki: http://wiki.nuigroup.com
>
> If people want to help get these parts, let me know.
>
> Joe
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