From any robot spec sheet:
I am assuming that the range of motion given for the J3 or 'U' axis is specified as a function of the position of the lower or J2 axis. Correct?
How do I find the absolute range of motion of J2 from the spec sheet? That is, what is the maximum positive and negative value that J3 can rotate? Because if I were to rotate using the range given for J2 then the arm would collide with the base.