Building Instructions

Let's go fast. Large wheels on the back. A lot of torque, small wheels on the front, good aerodynamics. Here we go.

These are building instructions for a LEGO Mindstorms EV3 Drag Car. 

There is a lot of physics and math involved when learning with LEGO Mindstorms EV3 robots. It is generally "difficult" to include them directly during classes because students are coming for "something funnier" and at the same time, they could be of different ages. But Inertia is a pretty common topic that is quite easy to introduce to students, especially with a robot. 
The robot moves and stops. What will happen with the cargo when the robot stops? Naturally, the cargo will continue moving and this is dangerous. For how long, what would be the energy? All these are things that could be discussed with this robot.
The robot is not completely finished because you have to finish it and decide on the wheels to be used. 

A robot attachment placed on the right side of the LEGO Mindstorms Box robot chassis. It uses two gear wheel to move a level. The level could collect things.

We had a couple of minutes before starting another robot and we just came up with this robot. If you would like to build a Box Robot, but don't have enough parts this is a good construction that you could learn from. It has a frame. It has three motors. You can add attachments at the top. 

Building instructions for a LEGO EV3 steering car. We use two large motors, so that the rear wheels will be driven independently by a separate motor. For your convinience, you can use the EV3-G MyBlock for moving the Boomer.

This robot is part of the category of robots called animals. After following the building instructions you would have a frog that could jump. Of course, the jump depends on the surface and the friction between the robot and the ground... quite complex physics involved. But if you program it to move forward it will try to jump and it is your job to try to make it jump higher. 

You could try to extend some of the legs, for example.

Take a motorcycle and start removing parts. You get a chopper. Like this one. It is built with LEGO Mindstorms EV3. It has one large and one medium motor. It could kind of turn, but moving forward with it is very funny. There is a "more sports like version" available at Ninja - Sports Motorcycle built with LEGO Mindstorms EV3

Currently, the motorcycle has no sensors. It's more of an exercise in construction, but if you attach sensors and think of a way to attach them send us a picture. 

Join the course A robot a "day" keeps the questions awake where we will further discuss the motorcycles, how to build them and what tasks to accomplish with them. 

You can find some demo programs here.

This LEGO Mindstorms EV3 robot chassis has the brick positioned vertically. Interesting idea that could be very useful.

This is a simple LEGO EV3 Mindstorms Robot that can collect items within itself.

Building instructions for a LEGO Mindstorms Robot that cleans the landing site when landing on a different planet. Built from an EV3 set it is a perfect simple tank robot with continuous tracks for lifting and moving things. Basically cleaning.   

Building instructions for a Robot Grabber used in the World Robotics Olympiad competition runs. The grabber is build with LEGO Mindstorms EV3. The base of the robot is available at /materials/69-wro-robot-2014-elementary 

Piscis from Latin means fish.

Piscis is a LEGO fish robot which uses a very interesting mechanism for turning. It's tail uses a medium motor to turn left or right. On its end there are two wheels. When the robot turns its tail, those wheels navigate the movement of the robot and it turns. This results in a cool turning mechanism which resembles how fish move.

Piscis also uses a large motor to move forward and backward. The touch sensor at the front helps it sense danger and return quickly back to the reef.

Watch out for the tooth wheels, they bite!

This attachment uses a connector ("(98585) Technic Connector Circular With 2 Pin Holes and 3 Axle Holes") with 4 pins to connect with a knob wheel ("(32072 ) Technic Gear 4 Knob") of the robot. Because both elements are parallel one to another there is no jumping effect.

The attachment uses two pins, but it is easy to attach and detach because it uses "(6558) Technic Pin Long with Friction and Slot". When you attach or detach the attachment the slots are keeping the pins strong on to the attachment.

Also an attachment connected to the robot in this way, can be move to the rigth knob wheel or to the left knob wheel.

Building instructions for a LEGO Mindstorms EV3 Robot that we call CastorBot, because it uses the castor ball. 

Building instructions for a simple LEGO EV3 robot built using two large motors and a color sensor. The robot is compact which makes it perfect for following a line. Note that the motors are upside down, which will make the robot go backward when we program it to go forward.

Building instructions for the Formula 1 Racing Car, built with LEGO Mindstorms EV3. It can turn with the help of a small motor and is driven by two large ones.

An example program for using this robot could be found at: https://www.fllcasts.com/programs/692hkz-comet-program

The goal of these building instructions is to build a LEGO Mindstorms EV3 robot without wheels. You should then decide on your own how exactly to add the wheel. Which wheels would you use at the front? How are you going to build the third wheel? Here are some recommendations on building the third wheel - 1,2,3,4 

Attachment used to transfer the motion from the motor from a vertical axle to a horizontal axle. Uses two gear wheels. Could be built with LEGO Mindstorms EV3 and LEGO Mindstorms NXT kits.   

Building instructions for a LEGO Truck. The robot is presented as an Ammo Truck but it can be used for transporting various other objects, too. The construction has a rear drive with each of the rear wheels driven by a Large Lego Motor. The front wheels steer using a Medium Lego Motor. The Brick is placed at the front of the construction which gives the opportunity to easily attach different sensors, based on the task. 

Building a third wheel for a LEGO Mindstorms EV3 Robot is always an interesting and challenging task. These building instructions are for a third back wheel. You can even notice that there is no wheel involved. It is just LEGO parts but it is one of the most stable ways to build a third wheel. There is some friction, of course, but not that much.