Make: Volume 93

value of our x variable. Thankfully, three sets of

conditional statements are all we need to make

sure our angles are calculated correctly, no

matter what x and y values are chosen.

USE IT!

With that, our project is complete. As you move

the joystick left and right, the pen should move

from side to side, and as you move the joystick up

and down, the pen should follow!

This is a relatively simple first step. One of the

great things about a project like this is all the

amazing ways in which it can be added to and

customized. Continue reading

at makezine.com/go/robot-

arm-drawbot for more ideas.

And check out my book

Make: Robotic Arms, in which ...