Making a Modular Differential Drive Robot

assembling modular mobile robot for making different type of robots like line following, obstacle avoidance etc.

evive toolkit

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Description

You must have made some kind of toy car as a beginner! This instructable will take you through detailed assembly of a modular mobile robot which can be used for:

Line following robot
Obstacle avoiding robot
Wall following robot, using evive.

The most important fact about this design is that its modular. You can iterate over different configuration of line following sensor, servo and ultrasonic sensor giving you robot for different applications without any hassle.

Details

Components

1 × evive arduino powered embedded platform For more info - http://evive.cc/
1 × Ultrasonic sensor ultrasonic sensor for arduino
1 × servo motor a servo motor for arduino
1 × line following sensor 5 or 7 array IR sensor
1 × Base Plate & Upper Plate Like the one in the image of robot

View all 12 components

Build Instructions

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1

Step 1

The design of the robot is open-sourced by evivetoolkit under creative commons-Share alike-Non commercial-license.
You can download the CAD model from our GrabCAD profile.
2

Step 2

First, we will mount motor clamps which is used to fix motors to the base plate. The plate have the mounts for two clamps. Mount the clamp with for nut bolts tightly.
3

Step 3

Mounting motors and wheels to base plate
After you have mounted the clamps, then we will mount motors. Unscrew the nut from the motor, then insert the motor in the clamp and screw back the nut to fix the motor in the clamp.
Then do the same thing for the second motor motor.
After this, you can mount the two wheels on the motor's shaft. Make sure that the wheels are compatible with the motor so that it can be attached and screwed easily and firmly.