Building Instructions -

• FIRST LEGO League

This robot attachment shows you how to limit the rotation of a lever. It uses two gear wheels to transfer the motion on 90 degrees. 

It could be built with LEGO Mindstorms EV3 and NXT versions. Most of the time during competitions like FIRST LEGO League and World Robotics Olympiad you need a lever for just a limited motion

Robot attachment that shows you how a circular motion could be transferred to linear by using a gear and a rack. The final motion is for pushing and pulling things. 

The attachment could be built from LEGO Mindstorms EV3 and NXT parts. 

The central axle of the robot is most of the time the most important. The robot moves forward and does things with this axle. It is important to learn to you could extend such axles, and change the level and position of the extensions.

This is a LEGO Mindstorms EV3/NXT robot attachment. 

For the FIRST LEGO League 2016-2017 Animal Allies we prepared an attachment for lifting the robot. The idea of the attachment is to show how you could lift the whole robot with a system of gear wheels, levers, and scissors constructions.

Built mainly from LEGO Mindstorms EV3 parts but could probably be constructed from NXT sets.

Active robot attachment for the LEGO Mindstorms EV3 Box robot chassis. The attachment is placed on the top of the robot and uses a system of two gear wheels to transfer the motion to a lever and to .... lift things.

No need for all attachments to be powered by motors and to include gears. It's sometimes possible to use a simple robot attachment to collect objects. Such attachments we call passive and this one is an example for the Box Robot Chassis.

Build with LEGO Mindstorms EV3 

A simple active attachment that could be added to the Box Robot Chassis.

When you need a LEGO robot attachment to lift heavy things on the competition field. Probably at FIRST LEGO League or World Robotics Olympiad. This attachment uses 4-5 gear wheels to lift a heavy object.

Build with LEGO Mindstorms EV3 parts. 

Attachment frames are used on Base Robot Chassis to make it easier to add and remove attachments very fast. This frame is for the Box Robot 1. It is a single module build with LEGO Mindstorms EV3 parts and it could handle attachment on all sides. 

Building instructions for a LEGO Mindstorms Base Chassis with a reversible motor

Note: This robot contains wheels that are from the NXT set.

Background

The chance of a “serious” meteoroid hitting earth in our lifetime is extremely low, but it’s not zero, and the devastation could truly wipe us out. How will scientists and engineers keep us safe?

Mission

From west of the free-line, send one or both meteoroids independently to the meteoroid catcher. “Independently”: see also M01, Section “Scoring Requirements”.

Scores

• Meteoroid(s) touch(es) the mat in the centre section of the meteoroid catcher: 12 each
• Meteoroid(s) touch(es) the mat in either side section of the meteoroid catcher: 8 each
• Possible scores: 0, 8, 12, 16, 20, 24

Scoring Requirements

• The result must be visible at the end of the match.
• The meteoroids need to be sent over the free-line to touch the mat in the meteoroid catcher > Only allowed method. Must be observed by the referee.
• The meteoroids must be hit/released while they are clearly and completely west of the free-line. > Only allowed method. Must be observed by the referee.
• While between hit/release and scoring position, the meteoroid must be clearly independent. > Only allowed method. Must be observed by the referee.
• If ever the ring-set meteoroid is off its ring, you may remove the ring from the field by hand. This is a special exception to the rules.

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