Interim Design Review: Self-Leveling Stow-Away Pool Table Beyond Innovation, LLC Sponsors: Alexander York Dr. Michael Devine Florida State University Mechanical Engineering Seniors: Travis Jarboe, Joel Manahan, Matthew McHugh, Thomas Silva Advisor: Dr. Chiang Shih Instructor: Dr. Nikhil Gupta Slide 1 of 21 Team 6

Slide 2 of 21 Team 6 Thomas Silva Background Popular all around the world (around for hundreds of years) Not just a table with rails; precise craftsmanship is required Competitive sport or game of leisure Tournament regulations require specific dimensions Table usually takes up entire room

Problem Statement  Project Goals Slide 3 of 21 Team 6 Thomas Silva

Original Project Concepts Design Concept #1 Design Concept #2 Design Concept #3 Slide 4 of 21 Team 6 Thomas Silva

Final Project Concept Slide 5 of 21 Team 6 Thomas Silva Motor controlled extending foldable legs Self-Leveling mechatronics system Dolly system for moving table Multi-use stow-away housing (Entertainment system housing)

Reinforced steel frame (lightweight hollow beams) Ability to handle torsion caused during rotation to vertical position Entire rail subassembly easily removed Angle beams provide support in stow away position Wood aesthetics Securing the Slate Slide 6 of 21 Team 6 Thomas Silva Steel Frame Rail Subassembly

Self-Leveling System Design Orangutan X2 microcontroller Two-axis inclinometer 2 - Atmel VNH2SP30-E motor drivers lbf load capacity linear actuators Simple user interface – LCD Screen Slide 7 of 21 Team 6 Thomas Silva Steel frame Linear actuator Steel foot Wood Housing Safety Pin

Slide 8 of 21 Team 6 Thomas Silva Project Concept Exploded View

Slide 9 of 21 Team 6 Thomas Silva Safety Analyses FEA Analysis on dolly assembly Performed using Dassault Systemes’ Solidworks simulation package Shaft loaded vertically with 300 lbf FMEA Analysis Procedure Appropriate steps taken resulted in much lower risk as expected FEA Analysis on Dolly

Slide 10 of 21 Team 6 Thomas Silva Other Safety Features Locking mechanism on dolly assemblies Locks into vertical (stow-away) position Keeps dollies and table together Locking positions for leg assemblies T-handle quick release locking pin 2 locking positions Stow-away Standing Leg Assembly Locking MechanismDolly Exploded View

Slide 11 of 21 Team 6 Travis Jarboe User Control Interface Manual Modes: Simultaneous Mode Pairs Mode Individual Mode Set level calibration to current position Auto-level Linear Actuators LCD Screen

Slide 12 of 21 Team 6 Travis Jarboe Experiments/Testing Self-Leveling Testing Mechanism Individually tested each component before implementation Gradually increased and tested load on actuators Tested stow-away process with frame alone before adding slate

Slide 13 of 21 Team 6 Travis Jarboe Results Discrepancy found in inclinometer readings. → Power source increased. Axis of rotation near center of gravity. → Allows for easy rotation. Leg losing ground contact. → Switches installed in feet. Average leveling time: ~10s → Well under desired time.

Slide 14 of 21 Team 6 Travis Jarboe Budget Assessment Budget: $5,000 Spent: $2, Remaining: $2,177.58

Market Analysis Slide 15 of 21 Team 6 Travis Jarboe

Slide 16 of 21 Team 6 Travis Jarboe Marketability Perfect for bars, restaurants, and hotels Great for those who cannot dedicate entire room to pool table Table stows into cabinet that blends in as furniture Height adjustable for kids

Gantt Chart Slide 17 of 21 Team 6 Travis Jarboe

Extended Goals IR range finder incorporation Modern graphic user interface Automated folding of the legs Dual purpose cabinets/housing Custom College of Engineering cloth Infrared Range Finder Slide 18 of 21 Team 6 Travis Jarboe

Slide 19 of 21 Team 6 Travis Jarboe Reflection Improvements Table/leg stabilization More secure locking mechanism for legs Cross support legs Self-leveling system Inclinometer feedback Higher quality screen/buttons Lighter frame is possible with expense Successes Finished pool table Good craftsmanship Quality look Creative design Practical design Wide range of market Easy stow-away concept

Slide 20 of 21 Team 6 Travis Jarboe References [1] [2] ipment_Specifications

Slide 21 of 21 Team 6 Travis Jarboe Questions?

Why a self-leveling system? Moving a pool table requires professional help Price to move and re-level: $300 [1] Self-leveling system is quick, safe and easy. Pool table being leveled by a professional Team 6 Travis Jarboe

Leveling Tolerances Team 6 Travis Jarboe

Leveling Algorithm Development Most time consuming process Requires repeated testing and reprogramming F Start Inclinometer if breaking end > racking end T if left end > right end T Right Racking corner is lowest so raise that corner. F if left end < right end Left Racking corner is lowest so raise that corner T F Turn off linear actuators Team 6 Travis Jarboe