hi every one

I am trying to simulate 6DOF robot arm using solidworks 2013 premium

as files show every thing works but when I change motor1 rotation angle than zero value

then motor5 will not rotate to sepecified value

when I  change motor1 rotation angle to zero , motor5 works as expected

I uploaded files in the following link

SolidworksFiles_Final_6DOF.rar - Google Drive

can any one help me ???

thanks alot