Project Files:
| Final Report in .doc |
| Blade testing lab results in .pdf |
| 2nd Semester Revised Milestones in .pdf |
| 3rd Generation (final design) Blade Attachement CAD Drawing. View1. View2. |
| Midterm Report Completed download in .pdf |
| 2nd Generation Blade Attachment Cad Drawing here. (E-drawings Viewer + Internet Explorer 5.5 Required Download here.) |
| 1st Generation Blade Attachment Cad Drawing here. (E-drawings Viewer + Internet Explorer 5.5 Required Download here.) |
| Engine selection data sheet created view in .pdf. Purchase order for Briggs & Stratton Etek motor made. View data sheet for the motor here. |
| Power source selection matrix created view in .pdf. Also power source spec sheet created view in .pdf. |
| Milestones finalized. Download in .pdf |
DATE |
COMPLETED |
MILESTONE |
|---|---|---|
| September 27, 2005 |  |
Safety training completed |
| October 11, 2006 | |
Calculate power requirements for typical lawn to accurately size battery/fuel cells Use an existing electric lawnmower to measure power consumption by recording the amperage draw while mowing a defined size lawn |
| October 18, 2005 | |
Decision for mode of power source using pro’s/con’s of electric, solar, fuel cells and biofuel when power, mowing time, and cost are compared |
| November 11, 2005 | |
Engine and blade sizing completed, begin CAD drawings using Solid Works for critical components |
| November 18, 2005 | |
Decision which parts to buy and which to acquire from old parts. Complete the purchase request form for power supply |
| December 20, 2005 | |
Presentation of first semester results |
| January 31, 2006 | |
Machine piece to connect the blade to the motor shaft |
| February 7, 2006 | |
Purchase different types of blades and perform lab to find the optimal blade for the lawnmower |
| February 17, 2006 | |
Set up lab to test the performance of the motor at different voltages(24V, 36V, 48V) for choosing final battery size |
| February 20, 2006 | |
Fill out purchase request form for the final battery |
| February 28, 2006 | |
Plot battery curve with motor as well as torque vs. time or power vs. discharge |
| March 14, 2006 | |
Research and design control board, which will charge the battery, damp out initial amp spike, protect system from burnout, and a safety shut-off |
| March 28, 2006 | |
Finish design of removable battery packaging as well as cowl for the mower and other final cosmetics |
| April 11 2006 | |
Finish assembly of lawnmower and design test on standard grass |
| May 3, 2006 | |
Set up of projects for final review |
| May 4, 2006 | |
Open house, operational review of project |
| May 10, 2006 | |
Final Project Report due |