I am a newbie for both solidwork and motion analysis. Right now I already have a existing robot arm model and want to test its torque limit for a certain motor. I read a lot of tutorials about how to do animation or motion analysis to plot torque result but no one worked for me. I tried the way of adding rotary motor in motion analysis but the arm won't rotate. The attach file is the assembly of my robot arm. I want to know how to do torque simulation for my second motor. Thanks in advance for any suggestion.