Name: Tiago B. Silva (tiagobs) eMail: tiagobs@brturbo.com or tiagobs@ufpr.br Iīve made a simple walker robot with two three legs. Two of them in the sides of the robot, and one in the center. The robots walks just by puting the sides legs to the front. It rotates by rotating the center leg when the others legs arenīt in the air (it uses a touch sensor to detect that). Made only with RIS 2.0 parts. Two motors (one for the legs motion and other for the rotation), one touch sensor and one light sensor (to detect the line). Programming language: NQC Trip time: 2m23s In the zip file I included: 7 pictures, a 2:23 lenght movie of the complete trip and the NQC program.