Chassis design is the next step in designing the robot. We can create the 2D drawing of the robot and then draw a 3D model of it. The only specification need to satisfy is that the robot's base footprint should be circular. Here, we are discussing a drawing that is satisfying this condition. If your requirements are different, you may need to modify your design accordingly. Now let's look at some illustrations of the robot's footprint.
Following figure shows the base footprint of our robot:
Figure 1: Base plate of the robot
The preceding figure shows the base footprint of our robot. You can see that it is circular and there are two slots on the left and right for attaching motors and wheels. M1 and M2 are the positions of the motor body, and the shaft will be in the slots. The motors can be put on the top of the plate or on the bottom. Here, we are attaching the motors to the bottom of this plate. The wheels should be inside these...