Hi, hope someone can help me out here, I have been really fascinated by this project, the great information in this forum and now finally trying to build my first table.
I used configapp to calibrate my screen, when I ran my application I notice that the “active area” is only up to the boundary defined by the outer crosses used in the calibration process. When I touch nearer to the edge of the window (beyond the area coverd by the crossess) the blob is not detected or it will defaul to 0,0 position.
Am I missing out on something in my setup? Is this issue with calibration or could it be my projector is throwing out interfering IR? Is the active area limited to within the area defined by the green crosses?
Hope to post some images soon, I was totally totally knock off my socks when I saw those demos using Google Earth and multitouch! Thanks to everyone here for posting their experience.