I am new to motion studies so I'm not sure what to do, and haven't been able to find help on my problem. i need to simulate a motor to move a valve 90 degrees. So far I have only been able to make it move continuously, but not with restraints. Is this possible? Also I only have SolidWorks Basic, so is this feature, or something similar, avaiable. I know I have motion study, but I want to know if I can do something so precise. Thank you.