Group 1 - Black & Decker Drill

From GICL Wiki
Jump to: navigation, search

Contents

Introduction

On September 25, group 1 was tasked by course MAE 277 (SUNY BUFFALO) to reverse engineer a Black & Decker® drill while paying specific attention to its various aspects of design and manufacturing. The purpose of this project is to reinforce group work skills, technical writing skills and introduce the design process in order to better prepare students for industry.

Tabulated data will be compiled using Microsoft Excel to create tables and charts, and Computer-Aided-Design to produce models of Black & Decker® drill components. The compiled information will be uploaded to the internet utilizing a design repository and will be in MediaWiki format.

The group has until December 11 to take a functional Black & Decker® drill and: disassemble/reassemble, upload data to MediaWiki, and perform a 6-minute presentation to the fall 2009 MAE 277 class. To ensure that the group stays on task and continues to make forward progress, a series of 4 stages has been established at which point certain criteria must be completed. The group has roughly two months to complete these four stages and their accompanying due dates are:

• Request for Proposal – 10/9/09
• Preliminary Project Review – 10/30/09
• Coordination Review – 11/23/09
• Critical Project Review – 12/7/09
*each stage has additional sub-tasks: see Diagram 1 for the complete Gantt chart

Executive Summary

The Black & Decker® DR202 3/8” Variable Speed/Reversible Drill is a must-have tool for almost any project. This six-pound power tool is light enough to be used for the everyday 'do it yourself' tasks while the five-amp motor is powerful enough for professional carpentry and construction jobs.

The main purpose of the DR202 is to drive and remove screws, and drill holes through various materials such as dry wall, steel, soft and hard woods, and plastics. It operates by taking electrical energy supplied by a standard household power outlet which it converts to rotational energy used within the motor. The rotational energy is transferred to mechanical energy, moving the gears within the motor, which supplies the torque to move the bit. It has variable speed: the farther the trigger is depressed, the higher the speed of the drill. The drill can also be locked for continuous use by squeezing the trigger while pushing in on the trigger lock mechanism. Additionally, the drill has a 8’ electrical cord with a two-prong plug. It has a direction reverse switch: push the switch to the right for forward rotation (clockwise rotation), push the switch to the left for reverse rotation (counterclockwise). The drill has a fifteen-position keyless chuck and a convenient bit holder located on top of the drill.

Side view of Jigsaw
Offset View of Jigsaw
back view

Gate 1: Request For Proposal

The below link navigates to the Gate 1: Request For Proposal page which outlines:

Group Members' Backgrounds
Proposed Time Management
Group Dynamic Analysis
Pre-Dissection Analysis

Request of Proposal Page

Gate 2: Preliminary Design Review

The below link navigates to the Gate 2: Preliminary Design Review page which outlines:

Gate 2 Purpose
Cause For Corrective Action
Parts List
Product Dissection Plan
Post-Dissection Analysis

Preliminary Design Review Page

Gate 3: Coordination Review

The below link navigates to the Gate 3: Coordination Review page which outlines:

Gate 3 Purpose
Cause For Corrective Action
Component Summary
Design Revisions
Solid Modeled Assembly
Engineering Analysis

Coordination Review Page

Gate 4: Critical Design Review

The below link navigates to the Gate 4: Critical Design Review page which outlines:

Gate 4 Purpose
Product Reassembly Plan
Post-Reassembly Analysis

Critical Design Review Page

About Us

The below link navigates to a subsection of Gate 1: Request For Proposal page which provides a short biography of each team member.

About Us

Contact Us

Group 1 E-mail

References

Gate 1:

[1] "Model # DR202 Spec. Sheet." Toolbarn.com. 06 OCT 2009 <http://www.toolbarn.com/blackdecker-dr202.html>
[2] “How Stuff Works: Power Drill.” How Stuff Works. 05 Oct 2009 <http://home.howstuffworks.com/power-drill.htm>

Gate 2:

[1] "DeWalt Service Technical Information" dewaltservicenet.com. 12 OCT 2009 <http://www.dewaltservicenet.com/Products/DocumentViewPDF.aspx?productid=33258&typeId=8795&documentId=21976&AspxAutoDetectCookieSupport=1>

Gate 3:

[1] "DeWalt Service Technical Information" dewaltservicenet.com. 12 OCT 2009 <http://www.dewaltservicenet.com/Products/DocumentViewPDF.aspx?productid=33258&typeId=8795&documentId=21976&AspxAutoDetectCookieSupport=1>
[2] “Drill spec sheet” toolbarn.com 12 OCT 2009 <http://www.toolbarn.com/blackdecker-dr202.html>
[3] “Wikipedia: Polyvinyl Chloride” Wikipedia 12 OCT 09 <http://en.wikipedia.org/wiki/Polyvinyl_chloride#Electric_wires>