Robot Designs



All designs are used for training purposes. If used in competition, be sure to cite your sources.



This is a modular base robot built largely with one SPIKE Prime Core Set (45678) plus one more large motor. You will need an extra color sensor, a ball wheel, and a frame from the Expansion to construct some of the modules. Attachments are easy to put on and take off. A sample attachment module is provided.

Designed by: Arvind and Sanjay Seshan


This is a modular base robot is built from one LEGO MINDSTORMS Robot Inventor (51515) Set. It is designed to be a training robot for FIRST LEGO League Challenge. Attachments are easy to put on and take off. A sample attachment module is provided.

Designed by: Sanjay and Arvind Seshan


This is a base robot built with one SPIKE Prime Core Set (45678) and the SPIKE Prime Expansion Set. This robot can be used as a learning tool as well as a basic design for FIRST LEGO League.

Designed by: Arvind and Sanjay Seshan


This is a base robot built with one SPIKE Prime Core Set (45678). This robot can be used as a learning tool as well as a basic design for FIRST LEGO League.

Designed by: Sanjay and Arvind Seshan


This is a modification to the Advanced Driving Base for improved color sensor positioning

Designed by: Arvind and Sanjay Seshan

  • Instructions: PDF


The LEGO MINSTORMS App contains our project called Print and Scan. Until the App has been updated by LEGO, you will need to use the attached code file.

Designed by: Arvind and Sanjay Seshan

  • Updated Code File: (Launch MINDSTORMS software and then click on file) LMS File

This is a 3D Printer make using LEGO MINDSTORMS Robot Inventor Video.

Designed by: Arvind and Sanjay Seshan

This is a one-kit build. Watch the video here: Video.

Designed by: Arvind and Sanjay Seshan


This is an extension activity for Tricky. One red Duplo ball comes in the Robot Inventor set. If you wish to purchase extra balls or different colored ones to extend the activity, you can do so.

Designed by: Arvind and Sanjay Seshan

  • Build Instructions: PDF
  • Autonomous Mode Code: (Launch MINDSTORMS software and then click on file) LMS File


This is a Tic-Tac-Toe game built with one Robot Inventor Set. You will need 4 more blue and 4 more red zamor spheres (54821) to play the game. One red zamor sphere comes in the Robot Inventor set.

Designed by: Arvind Seshan

  • Build Instructions: PDF
  • Python Code: (Launch MINDSTORMS software and then click on file) LMS File


This design is built with one SPIKE Prime Core Set (45678). It is designed to be similar to WeDO Robust Structures lesson. Download the build instructions and lesson plan from this page. Lesson Plan includes sample code.

Lesson and Robot Designed by: Arvind and Sanjay Seshan

  • Build Instructions: PDF

  • Lesson Plan/Code Sample: PDF