Make: Robotic Arms

THE JOY OF

JOYSTICKS

Chapter

5

I

n the previous chapter, we began

constructing our second robotic-arm

model. This second design was made

up of four links, had two actuators, and

represented a remix of our first two-DOF

robotic arm. While writing test software

for the arm, we saw that in order to

control the location of the end effector of

our robotic arm, we needed both motors

to work together. The movement of the

system requires various combinations

of each motor moving together, farther

apart, in the same direction, in the

opposite direction, and so on.