1. Layout Drawings Presentation ME 4182 Team: 5 Guys Engineering + 1 Nathan Bessette, Rahul Bhatia, Andrew Cass, Zeeshan Saiyed, Glen Stewart YJ Chok

2. Automatic Whiteboard Wiper Last Time – Post Midterm Review Presentation Reviewed comments on midterm presentation and responded This Time – Layout Drawings Layout or assembly drawings – How individual parts or subsystems fit together as a whole Encouraged to use computer modeling software Drawings for actual design, not prototype

3. Front View Uses 5 pulleys Entire system uses 2 motors Rack & pinion system utilized for eraser

4. Side View Very slim profile Rack and pinion allows vertical movement of eraser Does not take up much space above and below whiteboard

5. Rack & Pinion Subsystem Utilizes rack & pinion system coupled with electric motor to move eraser up and down Wheels at top and bottom slide along top and bottom rails placed near whiteboard

6. Main Motor Drive Subsystem Motor combined with cable system provides movement for arm frame Controller and power systems combined in one enclosure

7. Pulley Details 3 pulleys have 2 slots for cables Rotates in clockwise direction to move arm left, counter clockwise to move arm right Heavy duty axel and mount for prolonged durability, aluminum material to reduce weight

8. Roller Details Wheels grip onto guide rail to allow movement while providing stability to eraser frame

9. Automatic Whiteboard Wiper Next Time – Engineering Analysis Determine areas most likely to fail first and show they have been designed properly – Factor of safety Engineering/ manufacturing problems Estimate basic features Address following areas – Power consumption – Strength of materials analysis for fasteners and critical load bearing elements – Fatigue analysis for critical load bearing elements – Stability during operation – Kinematic analysis – Dynamic load analysis – Control methods and algorithms – Material selection – Safety; Human interface – Tolerances – Performance analysis and prediction