Introduction: Ev3 Lego Gripper/Finder Robot

About: My name's William and I love robots and everything regarding automation. I also enjoy music, drawing and debating.


The GrabBot is a multi-purpose robot that likes to roll around... When it stumbles upon a small object, it picks it up and brings it back to its start position.


You'll need the Lego Mindstorms EV3 kit and a few other Lego pieces

Step 1: Watch the Demo Video (optional)

You can check it out here:

Step 2: Build the Gripper

The first image shows all the Lego pieces that you'll need for this step. The following images then show you how to assemble the gripper from the pieces.

Step 3: Build the "exoskeleton"

Once again, by following the images step by step, you'll be able to assemble this part as well.

Step 4: Build the Rover

Step 5: Build the Lifting Mechanism

Step 6: Program You Robot (you Can Use This Demo Program)

Step 7: Grip Control Program to Adjust the Aperture of the Gripper