About This Project

Learn about the metal chassis and the mechanical constructions of a manual robot. In addition, we will learn about the circuitry of wire controlled robot.

Project Info

  • Difficulty: Beginner
  • Estimated Time: 2 Hr
  • Category: Mechanical Robot

Watch the video for wire controlled robot construction building here.

Introduction

We will be creating a robotic car (Wire Controlled Robot) that can be controlled using the remote. The 3-wheel drive includes two wheels and one castor wheel. We will learn about the concept of the differential drive. When the connection is done properly, this manual bot can be moved easily using the DPDT switch.

What is BO Motor?

BO Motor is one of the major components of wire controlled robot project. It is a lightweight DC geared motor that gives good torque and RPM at low voltages. The BO motor has the ability to run at approximately 150 RPM when driven by a single Li-Ion cell. The BO motor is used for lightweight applications and is available in different torque and RPM.

Introduction to Differential Drive

The differential drive is a two-wheeled drive bot with independent actuators for each wheel. Its direction can be changed by changing the relative rate of rotation of its wheels and does not require an additional steering motion.

DPDT switch: A Double Pole Double Throw (DPDT) switch is a switch that has 2 inputs and 4 outputs. Each input of the switch has two corresponding outputs that it can connect to.

Components Required

Sr.no. Image Component Quantity
1. bo-motor BO Motor 2
2. Wheels 2
3. Ball caster wheel 1
4. battery Battery 1
5. hook-up-wire Connecting wire As per requirements
6. DPDT switch 2
7. DPDT-Switch-box DPDT Switch box 1
8. nuts-and-bolts Nuts and Bolts 8
9. Screw-driver Screwdriver 1
10. 4-slot-battery-holder 4-slot Battery holder 1

Building Guide

Step 1: Collect all the components (Metal chassis, DC motor, DPDT switch, wires, robot motor wheel, Battery, Battery holder) required for making wire controlled robot.

Step 2: For the mechanical construction of wire controlled robot, follow all the steps given below.


metal-mechanical-construction-robot

assemble-metal-mechanical-construction-robot-1

Step 3:  Flip and place the castor wheel on the mounting holes. Fix with screws.


place-the-castor-wheel-on-the-mounting-holes-1
metal-chassis-manual-bot

Step 4: Turn the lower base plate back to initial orientation.

assemble-bo-motor

Step 5: Mount the BO motors on the chassis.

Step 6 Tighten the BO motors using nuts and bolts provided in the kit.


connect-bo-motor-to-bot

Step 7: Attach the wheels with the BO motor shaft.

attach-the-wheels-with-the-BO-motor-shaft

Step 8: Connect the wires with the left and the right BO motor. Now, we are ready to make the connections.

connect-the-wires-with-the-left-and-the-right-BO-moto

Step 9: Make the connections as per the below-given instructions. There are six pins in the DPDT switch. We need to provide the power supply in pins B and E. Connect the motors at pins A and D. Make a cross-connection between the pins A & F and D & C. Do the same for the next DPDT switch.

Make-the-connections-to-the-power-supply

Step 10: Connect the same way as it is in the above-given connections.

connect-the-dpdt-switches

Step 11 Put the DPDT switches inside the switch box

Step 12: Solder/connect the wires to the terminals of the motors.

connect-the-wires-to-the-terminals-of-the-motors

Step 13: Connect the wires in such a way that the right switch to the right motor and the left switch to the left motor.

Connect-the-wires-in-the-right-switch-to-the-right-motor

Step 14: When all the connections are done, close the switch box and start the test run by pressing both the switches at the same time to forward and backward.

close-the-switch-box-and-start-the-test-run

Step 15: To go left and right, press both the switches in the opposite directions.

Have you tried your hands on wire controlled robot project? Isn’t it interesting? Have your say by leaving your comments below.