LEGO Mindstorms Grabber v3
This is the third version of the LEGO Mindstorms Grabber. This time we use a LEGO EV3 Medium motor and worm gear to make the two levers move smoothly and symmetrically.
- #423
- 01 Apr 2017
This is the third version of the LEGO Mindstorms Grabber. This time we use a LEGO EV3 Medium motor and worm gear to make the two levers move smoothly and symmetrically.
This is a simple LEGO Gear System with a ration of 1:5. When the large wheel rotates 1 time the small wheel will rotate 5 times.
This is an active attachment. Active means that is is power by a motor. It's built with LEGO Education SPIKE Prime parts and it demonstrates how to build a lifting attachment for competitions in robotics like FIRST LEGO League/World Robotics Olympiad and others. Lifting is one of the most important parts when accomplishing missions at the competitions. What's interesting is that this attachment changes the orientation of rotation with it's gears. It is designed for Luly, small LEGO Education SPIKE Prime competition robot with 3D building instructions. Check the courses in which this attachment is used for more information and tutorials on how to use it.
This attachment is meant to be built on the robot Francesco 2. When the red connector for the transmission connects the two axles for the rear gear wheels, the differential locks and the motor starts evenly transferring its power to both wheels.
When the red connector for the transmission is pushed to the side, the differential unlocks and once again transfers its power to the wheel with least resistance.
You can see empty beams hovering over this attachment. They are there so you can attach a lever construction over it, to help with the locking and unlocking of the differential. Similar leaver can be seen in the robot Catapult.
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.
LEGO Mindstorms EV3 Robot designed for a Folk Race competition. This robot has three Ultrasonic Sensors. Follow the building instructions and at the end, you would have a very basic robot with tank treads that you could directly use.
We've built a box robot chassis that could easily be extended with attachments for FIRST Technical Challenge competition.
If you ever felt that FIRST Technical Challenge is difficult and you don't know where to start from, building this Tetrix robot is the first thing that you could do. You would have 4 motors, plenty of space for attachments and good access to the phone.
The robot is built from a Tetrix Set without additional parts. It's a winning robot in just 109 steps
These are building instruction for a working automatic catapult with a motor and a touch sensor.
Larvy is a SPIKE Prime robot, that moves like a larva or caterpillar. The robot has a Large motor, that contracts and expands it! Using the two medium motors, it turns 4 tyres to their side and upright whenever it wants, so that it can move forward!
A program for the robot can be found here: Program for Larvy - LEGO SPIKE Prime robot
This module is meant to be used in EV3 Kinesthetic and Memory Game and is attached to the base of the robot. This is the simplest module for constructing and programming. At the bottom, a channel is left for the cable to pass through.
These are building instructions for a 4x4 LEGO WeDo 2.0 vehicle
This attachment accomplishes the Into Orbit Space Walk Emergency mission from the FIRST LEGO League Into Orbit 2017-2018 competitions. The base robot is the SUV Competition Box Robot from LEGO Mindstorms EV3.
The program for this attachment is at Programs/w415dz-fll-2018-attachment-to-accomplish-the-into-orbit-space-walk-emergency-07-robot-game-missions-program.
Soon we would publish and a video of how the attachment works.
This is a LEGO Mindstorms Boxing robot. The inspiration story goes like this "One day we though - Let's play SUMO at this robotics demonstration, but let's make it more interesting. Let's play sumo with Humanoid Robots". We decided to build a boxing robot. The goal of the robot is to press the touch sensor on the other robot and it could be very fun. Perfect robot for demonstration. It is controlled by a joystick using the Bluetooth connection.
Here are the joystick and the programs for the joystick and the robots.
Building instructions for a LEGO Mindstorms EV3 robot where the motors are placed in an unusual manner. They are vertically placed on the sides. This robot construction base is very convenient for a quick and interesting robot on which you could build.
Instructions for building a LEGO truck. We use a medium motor for steering and a large motor for driving one of the rear wheels.
Building instructions for constructing a simple LEGO Model that has red, green, blue and yellow beams. This makes it perfect for operating robots through color code.
This is an attachment trigger from the robot inertial. It's built with LEGO Education SPIKE Prime parts and it demonstrates how to move with the robot, stop, the attachment activates and it collects a few parts. The goal of the attachment is to collect parts from the field without the use of any motors. It is an easy and quick way to build an attachment for FIRST LEGO League/World Robotics Olympiad and other robotics competition. The principle is the same. The attachment is designed for Luly, small LEGO Education SPIKE Prime competition robot with 3D building instructions
These are instructions on how to build the:
for the FIRST LEGO League 2019-2020 City Shaper Challenge.
You can find more building instructions and tips and tricks about the competition on this page.
These are building instructions for a LEGO WeDo 2.0 Small Creatuer