This is a cool scissor mechanism that looks like the sting of a scorpion. It is powered by a medium motor and at the top there is a touch sensor, to detect if something has been stung! The sting is used in Scorpion - LEGO EV3 Robot.
This is a mechanical cannon that uses the mechanical strain on the plastic LEGO beams to shoot a ball. Because of that the Ball size is very important. It is made to work with standard balls for a ball pool and even better with 41250 52mm LEGO Ball. The mechanism is powered by an EV3 Large motor.
This is a movement module, that works like real boat paddles! It consists of two paddles, each connected to a large EV3 motor. The module can be connected with other modules to make a robot that moves like a boat!
This module is made to look and move like a real ship's sails! The module consists of two masts that are connected so that they move together. The back mast is connected to a medium motor that can move all sails and is also connected to a gyro sensor, that can detect if the whole ship is rotated. This module is used in Yolanda - LEGO Mindstorms EV3 Sailship robot.
This is another LEGO Mindstorms grabber, but this time it has 4 fingers! They are moved simultaneously by a medium motor. The grabber was taken from Cron - LEGO Mindstorms EV3 Crane.
This is a steering mechanism made to look like a fish tail, so that you can make the coolest fish robot that steers like a fish. It uses a medium motor to move left and right. You can combine it with other modules to make your sea creature robot with a tail!
This is a module that is made to look like a polar bear head, but really it could be used for many animals. It uses a medium motor to bite and an ultrasonic sensor for eyes. We have labeled it a polar bear head, because it is used in Polar Bear - LEGO Mindstorms EV3 Robot that looks like a polar bear.
This module is made to look and move like the beak of a bird! It uses two technic steering links powered by a medium motor to close and open! It can be combined with other modules to make the best bird robot! This module is a part of Lintu - a LEGO Mindstorms EV3 Kiwi bird robot.
This module is made as a grabber that uses a cool mechanism to catch things vertically. It is powered by a medium motor. The grabber is used in Earl Bot - Grabbing and Clearing LEGO Mindstorms Robot without wheels.
This is a module that looks like a fish's head. It uses a touch sensor for a mouth and is otherwise purely cosmetic. The module is used in Piscis - a LEGO Mindstorms EV3 Fish robot.
This is a module that is made to look like a mantis' pincers and head. The pincers are powered by a medium motor and the head has an ultrasonic sensor for eyes. This module is used in Mantissa, a LEGO Mindstorms EV3 mantis robot.
This module is made to look like a head of a ram made with LEGO Mindstorms EV3. It uses an ultrasonic sensor, which points down as if it is going to attack, as the eyes of the head. It can be combined with other modules to create the perfect ram robot!
This is an attachment for extracting the raw materials. This attachment is made for Kamak box robot.
The program for this attachment is FLL 2018: Attachment To Accomplish The Into Orbit Extraction (05) Robot Game With Kamak - Box Robot - Demo Program
With this attachment we complete the Elevator and Steel construction for the FIRST LEGO League 2019-2020 competition. The attachment is placed on the Whakatae - LEGO Education SPIKE Prime Competition Box robot
This construction is taken from here. It is a little bit modified so you can build it from one EV3 Set. We made it because we thing it is genius. We are "angry" in the good meaning оf the word, because we didn't invent it. We hope that you will have the same fun as we do with it.
We think that this thing is a perfect example of balancing and mind scratching behavior. You also need to be precise with the length of the ropes. And the best part of it is that you don't need to program anything. 
Have fun and good luck!
Nice idea. Lift the other robot and throw it in the air. Not easy, but Varna is trying to do it. It's a quite powerful robot with small wheels and gear ratio of x3. This means the power is increased 3 time from the motor to the wheel.
Surely you can work with it and even improve it.
Can you find out why the robot is called "Omusbot"?
The robot is made as a nice base for more advanced LEGO Sumo competition. It uses two motors, which are put on backwards for more traction. On the front, it has a color sensor, which detects the border line of the field. Over them, there is an ultrasonic sensor, that detects the enemy robot. Finally, on the back, the robot has a touch sensor to detect if it is being pushed.
