Adaptable Bocce Ball Launcher Detailed Design Review Angela

Adaptable Bocce Ball Launcher Detailed Design Review Angela Marcuccilli -ME Brad Johnson -ME Bryan Fleury -ME David Ferguson –ISE Yash Singh -ME

Background n Coaches and athletes in the Genesee Region of Special Olympics New York are interested in adding bocce to the selection of sports n Many athletes lack the strength and/or mobility to be able to throw or roll the balls used for bocce.

Court

Court

Objective n 1) Create a device that can be used for training local athletes to compete in Special Olympics bocce. n 2) Device should maintain skill level of game n 3) Design for mass manufacturing.

Design Overview n Velocity- Ramp, speed controlled height of ball placement n Aiming- Swivel base, handles, auto correction after each turn, locking mechanisms (damper) n Portability- Light weight, collapsing, wheels, cover

Issues From Concept Review n n n n Instead of hinges, some sort of pins that would slide through legs and some sort of mount located underneath the ramp. Incorporated into final design Obtain some info on wheelchairs, percentiles etc. This will be considered when determining the height of the ramp. Research ANSUR database, verified ramp height would be feasible. Make sure balls are rolling not sliding down the ramp. Feasibility analysis. Have it drop into some sort of trough for transportation. Design cover. Position of screws, adhesives etc. Will be shown on drawing. Composites professor is Dr. Ghoneim. Hand off for manufactures? Mold specs and detail procedure. Use gutters for experimentation. See of steel angle bar.

Final Design

Final Design Drawing

Ramp Profile

Hinge Attachment

Swivel Plate

Damper System

Feasibility Analysis n Angled bar experimentation ¨ Distance traveled for pallina & bocce balls ¨ Break up capability

Supporting Calculations

Current BOM P 08004 BOM QTY. COST ($) 01 -89487 PART NUMBER bikepartsusa. com VENDOR Pyramid BMX brake lever, pair. Non-locking. DESCRIPTION 1 $7. 69 01 -88730 bikepartsusa. com Pyramid BMX, Set, Silver Alloy Brake Caliper 1 $9. 98 01 -90862 bikepartsusa. com Clarks GALV, w/HOUSING UNIV Black, Brake Cable 2 $4. 38 1647 A 42 Mc. Master Carr Steel Folding Pull Handle with Mounting Plate Zinc Plated Finish, 3 -3/8" W X 1 -3/4" H Plate 1 $1. 68 9924 K 161 Mc. Master Carr Military Spec Aluminum Tubing 1/2" OD, . 444" ID, . 028" Wall, 3' Length 1 $12. 54 6750 K 133 Mc. Master Carr Alloy 6061 Aluminum Hard Anodized Coated Rod 1/4" Diameter, 3' Length 3 $22. 71 1544 T 3 Mc. Master Carr Lubricated Corrosion-Resistant Turntable Galvanized 12" Round 1 $13. 10 8747 K 139 Mc. Master Carr Gray PVC (Type I) Sheet 1/2" Thick, 12" X 36" 1 $41. 75 9898 K 51 Mc. Master Carr Slam-Preventing Extension Damper Adjustable, 180# Extension Force, . 98" Stroke 1 $87. 62 9640 K 232 Mc. Master Carr Steel Extension Spring 11" Length, 1/2" OD, . 047" Wire 1 $2. 36 8943 K 19 Mc. Master Carr Galvanized Low-Carbon Steel Sheet. 096" Thick, 24" X 48" 1 $77. 00 60525 K 14 Mc. Master Carr PVC Vibration-Damping Mount 20 lb Load Per Mount, for. 509" Hole Dia 4 $10. 96 1685 A 13 Mc. Master Carr Rubber T-Handle Draw Latch with Zinc Plated Stl Strike, 15/16" Latch Distance 6 $20. 10 EXPLRWCLOSE www. skates. com Explore ELITE Inline Closeout Competition, Training & Fitness Wheels 2 $4. 98 9547 Tapplastics. com E-Glass Boat A Cloth (38 in. W), linear yard 20 $175. 00 35 Tapplastics. com Ultra-Glo, 16 oz kit 1 $16. 50 8265 Tapplastics. com General Purpose Epoxy Kit, 1/2 gallon 1 $46. 95 TOTAL COST OF SUPPLYS: ($) 555. 3 TOTAL BUDGET REMAINING: ($) 944. 7

Custom Parts Wheel mounts n Cover n Bracket for damper n Pull bracket for damper n Mount hinge for legs n Hinge for ramp front n

Prototype Fabrication Method n Custom Parts ¨ Brinkman n lab Ramp ¨ Build template ¨ Composite material

Risks Identified/Mitigation n Pallina not traveling far enough ¨ Designing for the worst care scenario n n n Time constraints in manufacturing the ramp (composite material) ¨ n Robust hinges/pins, maximum distance between legs Placement of top cover during time of the game ¨ n Contacted composites professor and lab manager and will be starting as soon as possible (Prototype worst case- Aluminum) Vulnerability to tilting from side to side ¨ n Highest coefficient of friction Farthest distance necessary (60 ft) Alternate methods discussed- will be revisited if need be or leave cover in van Damper system ¨ Allow excess time in schedule

Risks Identified/Mitigation Cont. n Portability lifting in out of van ¨ n Swiveling around when packed up ¨ n Using pulleys to reduce gripping force Cost ¨ n Keep the end lift as parallel to the ground as possible, gradual bend in ramp and factoring energy loss into equations Handle that’s able to be used by an athlete (little grip) ¨ n Used slipping as a constraint for angle of the ramp Energy loss due to initial drop ¨ n Straight pin through turntable to eliminate rotation Ball slipping on the ramp rather than rolling ¨ n Add handles/recessions in base Shopping around Repeatability ¨ Damper system

Comments/ Questions?