I am using SolidWorks 2014 SP2 and I am practising for the CSWP exam part 3 which deals with assemblies.
I need to get a robot arm to rotate and extend with a pneumatic cylinder. I can get the different sub assemblies to move as required but when I assemble everything it all locks up. Okay, so I should set the assemblies to flexible, I know that, but the check box is constantly greyed out making it inaccessible and nothing I try works to resolve this. Any ideas would be gratefully received.