『求助』多余自由度

机构经过自检后的结果


0 Gruebler Count (approximate degrees of freedom)
8 Moving Parts (not including ground)
4 Spherical Joints
3 Translational Joints
1 Fixed Joints
3 Hooke Joints
3 Motions
1 Degrees of Freedom for .parallel
There is one redundant constraint equation.
This constraint: unnecessarily removes this DOF:
.parallel.MOTION_D1 (Translational Motion) Translation Along Zj

Model verified successfully

3个Motions加到机构上后，机构的自由度应该为0，现在提示出现一个自由度，一个冗余约束，请问下，如何解决呢？