Make: Robotic Arms

129Chapter 7: 3D Robotic Arms

STEP 2: SETTING MOTOR 1 TO

90 DEGREES

The placement and orientation of

our motors will be crucial in this

design, as knowing exactly where

all our motors will be is essential

to being able to accurately control

the system. This means that each

component needs to be bolted in

while the motor is already placed

in a specific position. With this

in mind, throughout the build

process, we will set our motors

to specific positions to avoid the

need for in-depth calibration once

the entire arm is constructed.

Before we attach our first

component, our first motor will be

wired to pin 3 and set to 90 degrees.

The GND wire of ...