Group 29 - Homelite Line Trimmer

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Homelite® VersaTool™ Line Trimmer. Click to view a higher resolution of the image.
A more recent model of the Homelite® VersaTool™ Line Trimmer


Executive Summary

Addressed herein is the reverse engineering of the UT 15151 Homelite® VersaTool™ line trimmer undertaken by group 29 of MAE 277, SUNY-Buffalo, for the Fall 2009 semester. Documentation of the development of the semester-long project entails a record of an evolving engineering process distilled into four discrete "gates", designated as the following:

Gate I: Request for Proposal, which contains details germane to the Work Proposal, Project Management and the Initial Product Assessment;

Gate II: Preliminary Project Review, which consists of Causes for Corrective Action and the Product Dissection Plan;

Gate III: Coordination Review, which includes a Component Summary, Design Revisions, a Solid Modeled Assembly, and an Engineering Analysis apposite to the vital mechanics of the product;

Gate IV: Critical Project Review, which provides a step-by-step account of the product's reassembly, articulated in Product Reassembly Plan.

Motivation for this maiden enterprise evoking application of fundamental engineering principles to technical communication, analysis and design arose from the stimulus of MAE 277 coursework, as alluded to earlier, with the Reverse Engineering Team Project amounting to a substantial percentage of the course material and overall grade. Apart from this, genuine and sustained enthusiasm about reverse engineering physical machinery, together with sound responsibility in attending to delegated work, thereby enabling submittal of deliverables per deadline, proved to be the lone additional catalyst necessary for constructive progress during the course of the project.

What follows is the summation of a collective effort at reverse engineering the UT 15151 Homelite® VersaTool™ line trimmer within a period of approximately four months.


Gate I: Request for Proposal

Below are arranged, in sequence, links to the subsections constituting the Request for Proposal.

Link: Work Proposal

Link: Management Proposal

Link: Initial Product Assessment

Date Submitted: October 10, 2009

Gate II: Preliminary Project Review

The following links entail the Causes for Corrective Action and the Product Dissection Plan of the Preliminary Project Review.

Link: Causes for Corrective Action

Link: Product Dissection Plan

Date Submitted: October 30, 2009

Gate III: Coordination Review

The links below lead to the subsections (Component Summary, Design Revisions, Solid Modeled Assembly, and Engineering Analysis, respectively) comprising the Coordination Review. Access to the subsection References to Supplementary Material is provided in the Engineering Analysis, the content of which corresponds with the noted references to outside literature and kindred online sources of the former.

Link: Component Summary

Link: Design Revisions

Link: Solid Modeled Assembly

Link: Engineering Analysis

Date Submitted: November 30, 2009

Gate IV: Critical Project Review

The following links to the Product Reassembly Plan constituting the Critical Project Review.

Link: Product Reassembly Plan

Date Submitted: December 7, 2009

Gate V: Final Report Delivery

This signals the completion of the Reverse Engineering Team Project on the UT 15151 Homelite® VersaTool™ line trimmer. All content represented herein constitutes the technical report of group 29 as was formally concluded and submitted on the final delivery date.

Date Submitted: December 14, 2009

List of Tables and Figures