The main purpose of this book is to learn robotics by designing and building robots and programming it using Python. To learn robotics, we will first look at how to mechanically design a robot from scratch. The robot that we are going to build is used as a service robot in hotels and restaurants to serve food and drinks.

In this chapter, we can see various mechanical components used in this robot. Also, we can see how to assemble its components. We can design and assemble the parts using CAD tool and also build a 3D model of robot for simulating the robot.

The actual robot deployed in hotels may be big, but here we are intending to build a miniature version of it only for testing our technology. If you are interested to build a robot from scratch, this chapter is for you. If you are not interested to build the robot, you can choose some robotic platforms already available on the market to work with this book.

To build the robot body, we first...