Building Instructions -

• FIRST LEGO League

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• Robot Base Chassis

This is Kriket. Kriket is an example for a Box robot assembled form LEGO Education SPIKE Prime and could be used during competition like FIRST LEGO League to achieve a smooth, repeatable behaviour of the robot. In fact. this is why it was designed. The goal of Kriket is to be a "Box Robot" and to allow for attachments to be glided on top of it. Check the courses for Kriket to understand more about how it could be used.

The robot requires a few more parts than the standard LEGO Education SPIKE Prime + Extension sets, but it is worth purchasing and having them

We experimented with building a box robot powered entirely by chains—a unique approach inspired by the original LEGO MINDSTORMS NXT Robots. Chains like these can be hard to find, but we thought: why not try to power both the robot and its attachments with them? This design not only powers the entire robot but also provides a great demonstration of how and when chains can be effectively used in robotics.

To build this robot, you'll need approximately 180 chain links (part 3711a), which are available in the NXT kits and some Technic sets.

Please note that this robot requires additional components beyond those included in the LEGO Education SPIKE Prime and SPIKE Essential kits. Check out the additional parts required.

Thinking about box robots with LEGO Education SPIKE Prime, Boxver is a good example. It is tiny, kind of small and has the brick in a vertical position. Two motors at the front. The goal of this robot is to achieve reliability and consistency of the behavior of the robot.

This incredibly compact SPIKE Prime Box Robot is designed for competitions such as the FIRST LEGO League (FLL) and World Robot Olympiad (WRO). Named Whakatae, derived from the Māori word "whakataetae," meaning "competitive," this robot measures 17 LEGO units in length and 15 LEGO units in width. It features two color sensors in front of the wheels for precise alignment, two large motors for movement, and two medium motors for attachments.

The best part? You can build this SPIKE Prime Box Robot using just the Base Set, an additional large motor, and a color sensor!

Dominator is a compact LEGO Mindstorms EV3 Box robot from the family of the Roller Coaster and Kiddo box robots. Similar to the previous two robots, Dominator also can move its front part up, down, left and right. This robot also has the same length of movement as its two predecessors of this type - 8 LEGO pins on the side and up.

The difference is that Dominator has fewer parts and has a perfect center of weight that allows it to use large attachments and lift heavy objects without threatening its stability. The movement on the X and Y axes has the same gear ratio. The light sensors are attached to the movable part of the robot which enables it to both follow a line and recognize the color of various object with height lower than 7 LEGO units.

Second part of the building instructions for this LEGO Mindstorms EV3 competition robot chassis

Meet Kiddo, smaller sister of Roller Coaster. It is smaller, easier to build and easier to control box robot with X-Y moving plate.

The goal of this robot is to have one complex attachment that could move in four directions. With such an attachment you can solve a lot of complex tasks without loosing time changing attachments. It is also quite sturdy and packed

Here is an idea. What if a robot does not need attachments. What if there is one special attachment on the front that could do most of the work? Probably an attachment that allows you to move a lever in any direction.

This here is a Box Robot with X - Y axys plane. This robot doesn't need active attachments because it has X - Y table that do the job. Imagine that there is a plane on the front of the robot. With the rack mechanism you can move to any coordinates on this plane. 

We have a lot of ideas how to make it even better. We will try to release them in the next few versions.

Building instructions for a competition robot following the "Box robot" principle. The robot is built with LEGO Mindstorms EV3 and could be used at FLL and WRO.

The first part of a box robot chassis for robotics competitions. The robot is quite large and this is why we split it into two parts - to make it easier to construct it. This is the second part. 

The robot is built with LEGO Mindstorms EV3, with an additional part for the walls used in the second part.

This is a real competition robot with three light sensors and a gyro.

Building instructions for a Full LEGO Mindstorms EV3 Competition Robot that could be used in LEGO Robotics competitions.

The instructions for building the improved EV3 Competition Robot by Mic Lowne

Building instructions for a Light LEGO Mindstorms EV3 Competition Robot that could be used in LEGO Robotics competitions

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

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

This incredibly compact SPIKE Prime Box Robot is made for competitions like FIRST LEGO League (FLL) and World Robotics Olympiad (WRO). Whakatae (from Maori's word "whakataetae", which means "competitive") is long 17 LEGO units and is with a width of 15 LEGO units. In front of the wheels it has two color sensors which it uses to align. Whakatae also has two Large motors for moving and has two medium motors for attachments!

It's has "V2" in its name, because it's the second version of Whakatae - LEGO Education SPIKE Prime Competition Box robot. The difference between the two is that the first one can be built with only a Large Motor and a Color sensor in addition to the Base set, while this one needs an additional ball bearing. This provides this robot with a lot more stability and can be seen as a true upgrade to the first version.

This modification of the box robot contains large wheels. It was specially requested by you and we have it.

The story goes like this. Two engineers meet at a bar (or on discord during the pandemic) discussing which robot to use for this year's FIRST LEGO League 2020 Replay Solution and Review with explanations. They started their cameras, had a hot Carolina Reaper, had an argument, hugged each other, and decided to build Gazon, and use this new robot for the competition. So here it is. Small, 4 motors, 2 color sensors, stable, light.

Modification of the EV3 Competition Robot Full with light sensors attached to the front

Building instructions for a LEGO Mindstorms EV3 Robot Base with 56mm Tires, Version1. The robot base could be used in robotics competitions as FIRST LEGO League, World Robotics Olympiad and others