1。 DOF of a mechanisn 11 Review the definition of dof 1.2 Degree of freedom of a link 1. 3 DOF formula of a planar mechanism 1. 4 Points of Attention to Calculating DOF1. DOF of a Mechanism 1.1 Review the definition of DOF 1.2 Degree of freedom of a link 1.3 DOF formula of a planar mechanism 1.4 Points of Attention to Calculating DOF