Building Instructions

Building instructions for a LEGO robot that shoots 40 mm ping pong balls. The shooting mechanism is powered by two EV3 Large motors, while the whole mechanism is rotated by a medium motor. The robot can store up to 6 ping pong balls and has a Ultrasonic Sensor to detect targets. 

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. 

Kiril Mitov's most favourite attachment. To quote him "I had a really great fun building this attachment and recording the videos for it".

It's an attachment with a Rubber band and a Flywheel and a Gear Wheel and a Worm Gear. So much knowledge in just one small attachment. The goal of the attachment is to be able to have an active attachment without actually having a motor. So you can place that attachment and it will do the work for you instead of using a motor to power it. 

Build with LEGO Mindstorms EV3 set. 

When placing the rubber bands check out the tutorials

Placing the white rubber band is shown at https://www.fllcasts.com/tutorials/105-rubber-band-attachment-with-a-flywheel-solving-fll-2014-search-engine-part-2 at around 05:40.

Placing the red rubber band is shown at https://www.fllcasts.com/tutorials/104-rubber-band-attachment-with-a-flywheel-solving-fll-2014-search-engine-part-1 

Value was inspired by the spy vehicle robot. This little robot was built to measure the volume of the room he's in.

As you might have seen, recently all the cool kids build tensegrity structures. So we decided to make one for those of you who have a Spike prime set and want to build one themselves! In addition this tensegrity structure requires only parts from the set, which means you don't need to tie any strings on beams or other parts!

At the top of the structure we have two fully functional motors! Can you make something cool with them?

User this flywheels construction for experiments in physics. Start rotating the wheel and they would accumulate energy. You can try to calculate this energy and to measure how fast it would be consumed.

The construction is built with LEGO Mindstorms EV3

This robot is designed to easily lift a cup while still holding it upright. With its motor attached to the side of the hub, the robot can lift the cup to any angle you want. You could replace the LEGO cup and make it lift real cups with a few adjustments. Be careful around liquids though, the robot doesn't like beverages like you do!

You know those constructions that you need to push or pull something and you get a cool chain reaction, right? Here are the building instructions of such a Chain Reaction built with LEGO Mindstorms 51515 Robot Inventor set. This construction was created to be used with the smallest Inventor robot Tricky and its Kick the ball attachment. The goal is to program the robot to kick the Mindstorms/Duplo ball, included in the set, so that the ball could push the lever and start the chain reaction.

You can find the LEGO set, with which this was built, by following this link.

You can find constructions created to play with Tricky, by following the links below:

1. Bowling Pins
2. Football Goal
3. Basketball hoop

This was an idea. You would we demonstration a multi-axle power and rotation transmitting box. Well, here it is. Build it. Start it. And see how the power from the motor is transmitted through different axles. The lever will demonstrate it.