Pratham Presenter: Nick Martin Team Leader: Matt Ryan Chief Engineer: Gabe Letona Fabrication: Reed Langton CADCAM: Fraterno Vila Electronics/Control Engineer: Nick Martin

Team Concept Automatic Jar and Bottle Opener Adjusts to containers within the following constraints:  Height: 2” – 10”  Body Diameter: 1.5” – 5”  Lid Diameter: 1” – 5”  Lid Height:.3” – 1”

Basic Operation  Upper Assembly moves up and down to accommodate various heights  Gripping mechanism within Upper Assembly adjusts to lid diameter and centers jar  Base grasps jar body and twists

Upper Assembly Lid Grasping Components  Two grooved plates  Dimensions of 3 lid grips  Sensors on lid grips

Upper Assembly Height Adjusting Components  Threaded gear & shaft  Gear assembly  Servo Motor

Lower Assembly Jar Grasping Components  2 motors, 2 worm gears  Spring and contact switch  Spring-loaded arms

Lower Assembly Jar Twisting Components  Servo motor and large gear  Rotating plate and flathead screws  Microprocessor and battery housing

PDR Schedule  16 Sept.Team Concept  23 Sept.Top Assembly  30 Sept.Bottom Assembly  7 Oct.Sensors, Control, and Logic  14 Oct.Electronics and Distribution  21 Oct.Fall Break  28 Oct.Parts List and Estimated Cost  4 Nov.User Interface  11 Nov.CAD/CAM Model  18 Nov.Outstanding Issues

Gannt Chart

Topics for Feasibility Study  Gear assembly  Size of threaded shafts and screws  Motors  Overall dimensions  Spiral groove shape  Spring size and strength  Grasping and twisting forces