Forward and Inverse Kinematics of the SCARA Robot

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The Selective Compliant Assembly Robot Arm (SCARA) industrial robot has four degrees of freedom (DOF). The first DOF is the motion of a prismatic joint to control motion along the axis with high stiffness. The second and third DOF are revolute joints to control motion in the - plane with good selective compliance. The fourth DOF is also a revolute joint to control end-effect orientation. The SCARA robot has many applications for high-speed assembly, packaging, and material handling. This Demonstration shows both forward and inverse kinematics of a SCARA robot.

Contributed by: Frederick Wu (October 2014)
Based on programs by: Shutao Tangand Rob Lockhart
Open content licensed under CC BY-NC-SA




[1] J. J. Craig, Introduction to Robotics, Mechanics and Control, 3rd ed., New York: Pearson–Prentice Hall, 2005 pp. 109–114.

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