What is the cheapest and quickest way to make a multitouch input device?
You can make a multi touch device for less than $10 USD, if you have a webcam. The only materials you need are a cardboard box, a piece of sturdy transparent material (glass, acrylic, plexiglass, etc.), any kind of paper, a computer, in addition to the webcam. A video tutorial of how to make a MTmini (coined by cerupcat) is here. When your fingers hit the surface of the MTmini, shadows are created, and Touchlib, an application that can translate these shadows into touch events, recognizes/tracks the shadow(s) and relays it to an application. You can download a version of Touchlib optimized for the MTmini here. More detailed links: • Software: http://nuigroup.com/forums/viewthread/1825/ • Hardware: http://nuigroup.com/forums/viewthread/1731/ • Main page: http://ssandler.wordpress.
