A new 3 degree-of-freedom translational parallel manipulator is proposed in this thesis. This manipulator consists of three cylindrical joints fixed to the base, three revolute joints that connect two links in each limb, and three universal joints connect the limb to the moving platform. The manipulator is hence called a 3-CRU translational parallel manipulator. Loop closure equations of the three limbs lead to kinematic equations for forward position analysis. They are three polynomial equations from which closed-form equations may be obtained. Forward kinematics results may be verified by inverse kinematics results. Finally, manipulator’s workspace is shown for various platform heights.