Building Instructions -

• LEGO MINDSTORMS

Building instructions for the Pinless Rubber Band Attachment:

Chronos means time in Greek.

What's the time? Time to build a cool robot! This robot is made to look like a clock. The two hands are each connected to a motor and are positioned between the two motors. This makes it simple to build, while also being effective in showing how a clock works.

An example program moving the seconds and minutes hands of the clock can be found here.

An example program designed to teach children to read the clock can be found here.

Not all LEGO Mindstorms EV3 Robot should be aligned horizontally or vertically. It is quite possible to have the brick and the motors attached in such a way that the robot is at a certain angle. 

This is a very useful small construction that could be used as a base and extended with hands and heads or other interesting ....robot body parts.

Attachment part of a series of robot attachments for accomplishing the FIRST LEGO League 2013 competition. This specific construction lifts the two vehicles. It uses rubber bands for locking the levers. Take a look at the video tutorials for details explanation on how it works.

Build from LEGO Mindstorms EV3 parts.

Whitiki comes from Maori and means Belt.

The robot uses a medium motor to run the belt and a color sensor to identify the color of the ball coming in. There are 56 chain pieces in the robot.

Background

Space is quiet and beautiful, but with almost no heat, air, nor air pressure, it could freeze, suffocate, and boil you all at once! Help our spacewalking astronaut “Gerhard” get to safety.

Mission

The robot needs to get Gerhard’s body into the airlock chamber.

Scores

• Astronaut completely in the habitation hub’s airlock chamber: 22 OR
• Astronaut partly in the habitation hub’s airlock chamber: 18
• Possible scores: 0, 18, 22

Scoring Requirements

• For this mission, the word “body” includes all parts except the loop.
• Results must be visible at the end of the match.

(mission descriptions source https://www.first-lego-league.org/)

Building instructions for a LEGO Mindstorms EV3 Ambulance Robot Attachment for the FIRST LEGO League 2013 Nature's Fury robotics competition.    The attachment grabs the ambulance car and slightly lifts it. The rubber bands help with triggering the attachment at the right time

Building instructions for a LEGO Mindstorms EV3 Multi-axles mechanism

Background

To live away from earth, it would help if we were good at detecting and mining resources under the surfaces of other planets, moons, asteroids, and even comets.

Mission

The robot needs to get all the core samples out of the core site model, then it has options for what to do with them as described here, and in mission M03.

Scores

• Move all four core samples so they are no longer touching the axle that held them in the core site model: 16
• Place the gas core sample so it is touching the mat, and completely in the lander’s target circle: 12 OR
• Place the gas core sample completely in base: 10
• Place the water core sample so it is supported only by the food growth chamber: 8
• Possible Scores: 0, 16, 24, 26, 28, 34, 36

Scoring Requirements

• Results must be visible at the end of the match.

(mission descriptions source: https://www.first-lego-league.org/)

Building instruction for both EV3 and NXT. The whole catapult is build in exactly 78 steps.

This LEGO Mindstorms Attachment has three gears, one frame and two axles. The goal of the attachment is to use the gears to change the direction in which the motion is transferred.  

One LEGO gear is powering two LEGO Gears and at the end, from one motor we rotate two axles in opposite directions. Follow the building instructions.

This device is designed to be attached to "LEGO Mindstorms Robot with a large inertia cargo". It is a color sensor that goes on the caster wheel of the robot. In this case, the sensor will follow the robot.

Alice is a lovely little bird, with some amazing mechanisms on her feet. It uses two large motors and one medium one as a head, which drives both its wings.

Interesting and useful attachment for dropping a LEGO human at a specific location. It uses a lever and a gear wheel. When the lever is pressed the wheel rotates.

The attachment is constructed from LEGO Mindstorms EV3 sets.

Background

It is amazingly expensive to send heavy stuff like construction material into space, so scientists and engineers are instead learning how to print what they need in space, using available extraterrestrial elements.

Mission

The robot needs to get a regolith core sample and place it into the 3D printer, which will cause the 2 × 4 brick to pop out. The ejected 2 × 4 brick can then be delivered elsewhere for more points.

Scores

• The 2 × 4 brick ejected and completely in the northeast planet area: 22 OR
• The 2 × 4 brick ejected and not completely in the northeast planet area: 18
• Possible scores: 0, 18, 22

Scoring Requirements

• Results must be visible at the end of the match.
• Eject the 2 × 4 brick by placing a regolith core sample into the 3D printer. > Only allowed method. Must be obserserved by the referee.

(mission descriptions source: https://www.first-lego-league.org/)

In all building instructions for LEGO robots it is important to have the motors attached to the brick in more than one place. In the following construction, there is a beam connecting the two motors which has exactly this purpose. It makes the construction much more stable. Try removing this beam for example and see what will happen. Would the robot be able to move?

Many different types of wheels could be used. Both NXT and EV3 or from other LEGO technic series.

This LEGO attachment connects a LEGO Mindstorms EV3 Motor with a LEGO Technic Linear Actuator. The connection is through a couple of gears which makes the whole instructions quite interesting and useful as an example. 

The attachment was used during FIRST LEGO League 2014 Robotics competition.