Self-Balancing Robot Chassis for Arduino + MPU6050

A compact and lightweight 3D-printable chassis designed for building a two-wheel self-balancing robot. This frame was created to house an Arduino-based balancing system using an MPU6050 IMU sensor and an L298N motor driver.

The three-level design provides dedicated space for electronics, wiring, and future upgrades while keeping the center of gravity suitable for balancing applications.

Features

• Designed for two-wheel self-balancing robots
• Compatible with Arduino-based projects
• Space for MPU6050, L298N motor driver, battery, and controller board
• Three-layer modular structure for easy assembly
• Lightweight design for improved balancing performance
• Easy to print with minimal material usage

Tested Hardware

• Arduino Nano
• MPU6050 Gyroscope/Accelerometer
• L298N Motor Driver
• TT DC Gear Motors
• 65mm Robot Wheels
• External Battery Pack

Print Settings

• Layer Height: 0.2 mm
• Infill: 20%
• Supports: Not required
• Material: PLA recommended

Assembly

The chassis consists of multiple plates connected using spacers. Motor mounts are integrated into the design and can be secured using standard screws. Electronics can be mounted on the middle and upper platforms, leaving enough room for cable management and future sensors.

Project Purpose

This design was created as part of a self-balancing robot project to learn control systems, PID tuning, robotics, and embedded programming. Feel free to modify and improve the design for your own projects.

If you build one, please share your make and any improvements you add!