  Robot manipulators are extensively used in industrial applications because of
their immense importance such as in constructions automation. Therefore,
designing controllers to suit the intensive purpose of the application is one
of the major challenges for control researchers. This paper presents
comparative analysis of three controllers on a 3-DOF robot manipulator. The
proportional integral derivative (PID), proportional derivative (PD) and fuzzy
logic (FL) controllers were designed and applied to each of the link of the
robot by simulation. The performance of each control method was assessed using
the transient and steady state response characteristics. Comparisons of the
results obtained, PID and PD performed better in terms of Rise Time and
Settling Time while the FLC exhibited reduced overshoot
