These are all the robot building instructions. By visiting each building instruction you could see the Tutorials and Courses and Lessons in which it is used.
Build from LEGO EV3 Core and Expansion set this robot looks like a scorpion. The Scorpion strikes, when it sees a pray with the ultrasonic sensor and you can use the touch sensor and the rotation sensor to control the spike movement. It has a scissor mechanism at the back using a system of gears and levers.
The CubeHunter uses the ultrasonic sensor to detect a ball or cube. Next, the robot catches it and reads the colour of the object using the EV3 colour sensor. The building instructions are suitable for classes with students and if you are working alone at home.
Hrutur, from Icelandic, means Ram.
The robot is made to resemble a Ram. Its main focus are the gears, which make it go faster so that it can ram harder. It uses two Large EV3 motors to power the gear systems. At the front it has an Ultrasonic sensor for aesthetic purposes, which you can use however you like.
Rollbar is a handy device, which only purpose is to measure lengths. Its main purpose is to measure curved lines.
It's designed for right-handed people, but with some small adjustments, it could fit any palm.
Instructions for building remote control. It uses the rotation sensor to determine the steering and touch sensor for handling the movement. Find building instructions for a suitable chassis here.
Together the controller and the car look like this:
The Laboratory is a robot that tests your programming skills. You will have to measure the volume of a balloon, only by the values you receive from the sensors.
It has a valve, that allows you to deflate your balloon at different rates.
How to place the balloon in the robot is explained in this tutorial.