Antares - a simple LEGO Mindstorms EV3 Scorpion robot

Antares is the brightest star in the Scorpius constellation.

The robot's main purpose is to show two different grabbing mechanisms - one vertical and one horizontal. The vertical pincers use a medium motor and the horizontal pincers use a large motor. Additionally the robot has a sting mechanism which uses another large motor. For a head it uses an EV3 ultrasonic sensor. With the sensor, the robot can sense when the prey is close enough for a suprise attack.

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#715
23 Feb 2019

To construct this you will need

LEGO Mindstorms EV3 45544 Education Core
LEGO Mindstorms EV3 45560 Education Resource

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This Material is used in the following courses and lessons

Level D1. "Animals". Robotics with LEGO

This is the seventh level of the Robotics with LEGO curriculum for students in third or fourth grade.

In this level students focus on the rotational sensor that is part of every motor in the robotics set.
Robot constructions imitate animals and their behavior. Students create programs that check whether the robot's claws or pecks have successfully caught an object. That sensor in the motors allows the robots to go back in their lairs even after the use of unlimited movement.

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Lesson 3 - Scorpion

Introduction

In this lesson we are going to build a robot which resembles a scorpion. Have you ever seen scorpions? Where?
We know that scorpions usually live in deserts. They feed on absolutely everything that crosses their path, waiting in ambush. An ambush means to suddenly attack someone or something after hiding and waiting for them. This technique was used billion years ago by The Tyrannosaurus Rex and today it is preferred by many species, including people.
But how does the scorpion hide in the desert?
Scorpions use their legs to make shallow holes in the sand where they bury themselves. Thus scorpions blend into the environment.
Can you notice the scorpion in the picture?

It is well hidden and is waiting for a bug to pass by so it can have a snack!

Robotics with LEGO - Level 2.5 - Maritime Journey

The fourth level of the Robotics with LEGO curriculum for students from fifth to twelfth grades.

In this level students focus on the rotational sensor that is part of every motor in the robotics set. Students also learn to use the fourth sensor in the robotics set - the gyro sensor.
First few robot constructions imitate sea-animals and their behavior. Students create programs that check whether the robot's claws or pecks have successfully caught an object. That sensor in the motors allows the robots to go back in their lairs even after the use of unlimited movement. The rest of the robots are modeled after boats, yachts, and ships. With the help of the gyro sensor, students can set a course for their robots to a given angle and can detect deviations from the course. In open seas, there may be sea-monsters and the robots are being programmed to detect a sudden change in acceleration with the help of the said sensor.

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Lesson 3 - Scorpion

Introduction

Antares - a simple LEGO Mindstorms EV3 Scorpion robot

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To construct this you will need

Bill of materials (Parts list)

Modules Navigation

Prepare for FIRST LEGO League 2024/2025 SUBMERGED Robot Game. The complete guide

Courses and lessons with this Material

Level D1. "Animals". Robotics with LEGO

Lesson 3 - Scorpion

Introduction

Robotics with LEGO - Level 2.5 - Maritime Journey

Lesson 3 - Scorpion