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OmniRobot

An omnidirectional entertainment robot with three-wheel and four-wheel variants, built from 3D-printed PETG parts with Pololu motor drivers and an Arduino-compatible Pro Micro controller.

  • Wheeled
  • Open source
  • arduino
  • 3D printable

Suggested by Robotheca, created by @GioSunrider (opens in a new tab), from github.com/GioSunrider/OmniRobot (opens in a new tab). Pinned to commit 18f5f08 (opens in a new tab).

Fork on GitHub (opens in a new tab)Download the files at this commit (.zip)
Hardware license
CC-BY-SA-4.0 (opens in a new tab)
Software license
CC-BY-SA-4.0 (opens in a new tab)
Commercial use
Allowed

Photo and 3D model

OmniRobot, photo from its repository
Photo:@GioSunrider (opens in a new tab)CC-BY-SA-4.0source file (opens in a new tab)

3D preview converted from github.com/GioSunrider/OmniRobot at 18f5f08, under CC-BY-SA-4.0. View the original files from GitHub (3.5 MB) (opens in a new tab)

What it can do

Written by Robotheca from the project's documents.

  • Omnidirectional robot built for entertainment, designed as a final degree project at Universidad Carlos III de Madrid.
  • Three-wheel and four-wheel variants are described, both using omni wheels or metal gearmotors.
  • Includes a laser diode, and a servo motor is listed in both variants.
  • A Processing simulator lets the user drive the robot with WASD, rotate with Q and E, toggle motors with space and X, fire the laser with L, and reset with R.

Bill of materials

This repository has no parts list Robotheca can read yet.

Build guide

The guide appears here as you scroll.

Guide by @GioSunrider (README.md), under CC-BY-SA-4.0.

More guides

Wiring and electronics

Notes written by Robotheca from the project's documents.

Main parts

  • Pro Micro 5V/16MHz microcontroller board.
  • Pololu Dual MC33926 motor driver carrier.
  • 100:1 metal gearmotor 37Dx57L mm for the three-wheel version.
  • 30:1 metal gearmotor 37Dx57L mm for the four-wheel version.
  • 5V laser diode.
  • 5V DC-DC converter.
  • 90 degree servo motor.
  • Omni wheels 40x28mm plastic for the three-wheel version.

Connections

  • Eagle and KiCad PCB design files are included in the repository, but the documents do not describe how the parts are connected.
  • The laser receiver is a separate Eagle schematic, PCB/Receptor_Laser.sch.
  • The documents do not describe the connections between the microcontroller, motor driver, servo, and laser.