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Published bySolomon Johnson Modified over 9 years ago
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Layout Drawings Presentation ME 4182 Team: 5 Guys Engineering + 1 Nathan Bessette, Rahul Bhatia, Andrew Cass, Zeeshan Saiyed, Glen Stewart YJ Chok
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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
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Front View Uses 5 pulleys Entire system uses 2 motors Rack & pinion system utilized for eraser
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Side View Very slim profile Rack and pinion allows vertical movement of eraser Does not take up much space above and below whiteboard
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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
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Main Motor Drive Subsystem Motor combined with cable system provides movement for arm frame Controller and power systems combined in one enclosure
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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
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Roller Details Wheels grip onto guide rail to allow movement while providing stability to eraser frame
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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
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