P07403: Garri Processing Project


Table of Contents

Garri Processing Project

Project Overview

The mission of the Garri Processing Project is to provide a faster, more efficient means of producing Garri by either automating some or all of the steps in the process. Garri, a product of the cassava root, requires peeling, grating, drying and frying in its production. Current processing time takes, on average, over 48 hours. The primary goal of this project is to reduce that time as much as possible while still providing an affordable system for the farmers of West Africa.

Goal and Benefits:

The goal of the project was to design and manufacture a garri processing machine affordable to lower class families in Nigeria. The device would improve upon one or more of the inefficient processes related to the processing of garri.

The expected benefit of the Garri Processing Senior Design Project is to improve the quality of life for approximately 8-million Nigerian families by providing more efficient, economical methods for garri processing.

Team Members

Team Member Discipline Role email address
Dr. James Taylor ISE Faculty Guide jbteie@rit.edu
Alissa Albert ISE Team Leader, Benchmark & Product Testing ara5350@rit.edu
Anne Froustet ISE Cost Analysis, Usability Studies aef9212@rit.edu
Coleman Glasgow ME Mechanical Design cag6940@rit.edu
Joey Lawson ME Structural Analysis jll6806@rit.edu

Project Planning and Concept Development



Garri is the staple carbohydrate of West African nations. Garri is a fine grain and can be made into breads, crackers and pancakes. Garri is produced from cassava, tuberous roots with thick skin and dense flesh. An average family of six produces approximately 50 kg of garri per month; this quantity requires about 400 cassava roots. Traditional processing includes six steps to achieving the final product of garri: peeling, washing, grating, drying, sifting, and frying. The entire process can take over two days to complete.

A brief overview of the Garri Processing Project can be found here: Project Summary

Concept Development

Identify Customer Needs and Establish Target Specifications

Initial Concept Generation

Concept Revision and Design Review

Mechanical and Structural Design

Manufacturing & Assembly

Stress Analysis


Testing was necessary to determine the success of the selected peeling and grating designs. The time and effort to perform these tasks are the most critical improvements to be measured. Testing methods were designed to identify the strong and weak points of each design and confirm that product specifications are met.

Test Plans

Contingency Plans

Test Results

Final Prototype

Product Photographs

Instructions for assembly and use can be found here:

Peeler Instructions

Grater Instructions

Team Documents

Senior Design I

A brief overview of the Garri Processing Project can be found here: Project Summary

Concept Review - January 26, 2007

Initial Concept Scoring Matrix

Design Review I

Project Review I - February 23, 2007

Senior Design II

Design Review II

Time and Usability Results

The project expense report as well as the bill of materials for each device, peeler and grater, can be found in the attached file. File will open in Microsoft Excel. Budget and Project Expense Report

Peeler Instructions

Grater Instructions

Project Review II - May 18, 2007

Technical Paper

Download Technical Report

The team wishes to thank Dr. Taylor, Maggie Masella and Eze Kamanu. The team also would like to thank Dr. Hensel and the Mechanical Engineering Department, for their support and sponsorship and Dave Hathaway, Steve Koscial and Rob Kraynik in the Machine Shop.