No need for all attachments to be powered by motors and to include gears. It's sometimes possible to use a simple robot attachment to collect objects. Such attachments we call passive and this one is an example for the Box Robot Chassis.
Build with LEGO Mindstorms EV3
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.
Building instructions for a simple chain tread machine. The robot is actually a simplified version of the Freedom Folk Race tank. All of the ultrasonic sensors are stripped away and the robot can be used for multiple different tasks. The construction is appealing to students and simple enough to be included in a class.
Building instructions for LEGO EV3 robot with color wheel that can be rotated through the medium motor. The color wheel is at the front of the robot while there is a color sensor at the back. The color sensor could read the color from another robot. The robot can be used in classes with students to play the telephone game.
An example of a program for controlling the robot could be found at https://www.fllcasts.com/programs/kmeat9-ev3-g-myblock-for-rotating-the-color-wheel-randomly
Mintonet (engl. Mintonette) comes from the name of the first iteration of volleyball.
The robot can move only forward and backward, without turning, with the help of a large EV3 motor. Another large motor is used to shoot. The robot uses an EV3 ultrasonic sensor to detect its partner and throw a ball at it.
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.
This here is a base for a robot that has the brick Upside Down. Have you seen Stranger Things? We would admit that this robot does not look exactly like a 'Demogorgon', but this here is the challenge. Can you use this base and make the robot look like a Demogorgon. Add a picture to the comments section below the material.
Do you have other ideas for Demogorgon? Build them with LEGO and add a picture below this material or send it to [email protected]. We would feature it at FLLCasts.com.
Iknathir from armenian means aircraft carrier.
The robot is made to resemble an aircraft carrier. It shoots paper airplanes using two fast spinning wheels. The wheels are connected to a gear up mechanisms which are connected to two Large motors. The motors themselves are connected to a medium motor, which allows them to move towards and outwards the plane so when they reach it, they are spinning at full speed. The plane is placed on a runway which leads it to launch successfully. On the side of the robot, there is a lever with a gyro sensor, which is used to trigger the launching mechanism.
We have to admit. This is quite an interesting missions. There is a Manhole cover and it must be turned upside down. Well, the robot must turn it. Again LEGO Box Robot Three With Large Wheels and Thee light sensors and one Gyro is used as a base for the Robot.
Francesco 2 is inspired by the robot Francesco.
Building instructions for a simple car using an EV3 Large motor for turning the front wheels and EV3 medium motor with differential for driving the rear wheels. Differently, from Francesco, Francesco 2 has space where a locking mechanism is meant to be built for the differential.
Let's build a robot with treads. These building instructions are for a Guard Tank Robot. The good thing about tanks is that they could tackle a lot of obstacles on their way. At least this is what people are saying. Try it. Could you move over LEGO parts with this tank if they are one brick tall, or two bricks tall? What would be the largest obstacle that you could find, over which this tank could still move? Share a video or picture below in the comments section.
We would admit that this tank lacks a gun or an arm, but it is up to you to build one.
Building instructions for this LEGO Mindstorms EV3 robot base that could be used in FIRST LEGO League, World Robotics Olympiad and other robotics competitions
Lifter is an pretty fast and pretty strong attachment that lift up... things... like exercise machine, astronauts and other stuff.
A program for that attachment in Into Orbit 09 - Strength Exercise challenge is located at programs/hm9c06-lifter-an-attachment-for-suv-box-robot-and-into-orbits-m09-strength-exercise-program.
Geldautomaat, from German, means ATM.
This is the last robot from the 3.0 course book in the LEGO Mindstorms Curriculum. It uses a Touch Sensor to sense if there is a card inside. When touched, a Medium Motor starts spinning and pulls the card inside its chamber, where a Color Sensor reads the data from the card.
NOTE: There is a step, where you have to place the "credit card" inside. It may seem unnecessary and pointless, but otherwise, you will not have proper support for the next steps and the construction will crumble.
A simple active attachment that could be added to the Box Robot Chassis.
This is a LEGO Mindstorms EV3 competition robot used in FIRST LEGO League Season 2018-2019 Into Orbit following a Box Robot principle. The robot has passed through the following competitions in Brazil:
Local competition in scho
Regional: Northeast
National: Rio de Janeiro
International: Uruguay
The robot is an modular construction that you could easily build upon. It is not entirely "clean" as it has parts of it not optimezed as in the other box robots, but it is a nice example and a great work from the FLL team.
Building instructions for a LEGO Mindstorms animal that looks like a Penguin, and walks like a penguin and if you program it, it will even talk like a penguin. Can you program it to talk like a penguin?
Sebastian is a six-legged creature, which technically makes it not-a-crab. Anyway, it still walks sideways and is amazing to build and watch.
You can find the program for Sebastian here.
Building instructions for the LEGO Mindstorms EV3 robot used for accomplishing WRO 2014 mission. It is the full robot with the lift at the top
The name comes from the worlds most expensive yacht, History Supreme, purchased for around 5 billion US dollars form an anonymous Malaysian buyer.
Robotics Supreme is a robot made to resemble a yacht. For that purpose it is made to look very long and its front comes to one point. It uses two large motors with tyres to move. On the front it also has a color sensor, placed so the robot can follow a line. On the back it has a Gyro sensor, so that it can turn correctly.