A robotic portion 1 has X-axis, Y-axis and Z-axis modules 2, 3, 4 and
can move in three axial directions. This robotic portion 1 is mounted in
such a manner as to move on a second base 10 in the X-axis direction. Furthermore,
the second base is mounted in such a manner as to move on a first base 12 in
the Y-axis direction. Then, the robotic portion 1 can be moved on either
the first or second base 12, 10 on pins 7, 8 provided on the Z-axis
module 4 which act as fulcrums by moving the robotic portion 1 in
the Y-axis direction or the X-axis direction with the pins 7, 8 being inserted
into hole portions 14, 11 formed in the first or second base 12, 10.
