Dextroid is an 8-DOF Bipedal Humanoid developed by team of students from BITS Pilani, Hyderabad Campus. It was designed to be low-cost and enable fast prototyping, with easily replaceable off-the-shelf parts.
Mechanical Design
TowerPro MG995 metal-gear servos were choosen to actuate the 8 Degrees of Freedom. These were attached for leg arrangement with off-the-shelf brackets. Acrylic sheets were used for the foot and the hip base. SolidWorks was used for initial design and test assembly.
Left: SolidWorks Render of the robot assembly. Right: Actual robot.
Electronics
Arduino UNO was used as the microcontroller. The robot was powered by a lithium polymer battery (not attached). A DC-DC Buck Converter was used to step-down voltage for the servos/arduino.