INTRODUCTION LITERATURE REVIEW METHODOLOGY RESULT AND ANALYSIS

v TABLE OF CONTENT Abstract i Abstrak ii Dedication iii Acknowledgement iv Table of Content v List of Tables ix List of Figures x List Abbreviations xii

1.0 INTRODUCTION

1 2.0 Project Background 1 2.1.1 Keropok Lekor 2 2.1.2 Cutting Mechanism 2 2.2 Problem Statement 3 2.3 Objectives 4 2.4 Scope 4 2.5 Benefit of The Project 5 2.6 Project Planning 5

3.0 LITERATURE REVIEW

9 3.1 Design 9 3.1.1 Engineering Design 10 3.1.2 Conceptual Design 12 3.1.3 Detail Design 13 3.2 Development 13 3.3 Automated 15 3.3.1 Manual-Work Systems 15 3.3.2 Worker Machine System 16 vi 3.3.3 Automated System 17 3.4 Keropok Lekor Properties 19 3.5 Cutting Mechanism 20 3.5.1 Important Criteria of Cutting Mechanism 22 3.6 Electric Motor 25 3.6.1 AC Motors 27 3.6.2 DC Motors 29 3.6.3 Stepper Motors 30 2.7 Relay Logic 31 2.7.1 Basic Format for Relay Logic Diagram 33 2.8 Pneumatic System 34

2.8.1 Advantages of Pneumatic Systems 35

2.8.2 Pneumatic Components 36 2.8.2.1 Actuator 36 2.8.2.2 Air Compressor 38 2.8.2.3 Air Filter 38 2.9 Software 38 2.9.1 SolidWorks 39 2.9.2 CosmoXpress 40 2.9.3 Automation Studio 41 2.10 House of Quality 41 2.11 Pugh Method 44 2.11.1 Steps to Develop Pugh Method 45 2.12 Push Pull Gauge 46

4.0 METHODOLOGY

48 4.1 Stages of The Project 48 4.1.1 Project Understanding and Planning 49 4.1.2 Define Specification 51 4.1.3 Literature Review 51 vii 4.1.3.1 Books 52 4.1.3.2 Journals, Articles, and Paper 52 4.1.3.3 Catalogues 52 4.1.3.4 Internet Resources 52 4.1.4 Conceptual Design 53 4.1.5 Detail Design and 3D Modeling 54 4.1.6 Design Optimization 55 4.1.7 Fabrication and Assembly 56 4.1.8 Testing 57 4.1.9 Discussion 58 4.1.10 Conclusion 58 4.1.11 Presentation and Evaluation 58

4.0 RESULT AND ANALYSIS

59 4.1 Identification of Customer Requirement 60 4.2 Define Product Specification 64 4.2.1 Experimental Analysis 65 4.3 Design Concept Generation 68 4.3.1 Concept 1: Cam-Follower Mechanism 69 4.3.2 Concept 2: Pneumatic System 70 4.3.3 Concept 3: Worm Gear Concept 71 4.3.4 Concept 4: Rack and Pinion Mechanism 72 4.4 Design Concept Selection 73 4.5 Further Design Improvement 75 4.5.1 Cylinder Bore Size 76 4.5.1.1 Specification of Pneumatic Cylinder 77 4.5.2 Ideal Speed for Feeding Mechanism 79 4.6 Detail Design 82 4.6.1 3D Modeling 85 4.6.1.1 Cutting Mechanism 87 4.6.1.2 Feeding Mechanism 88 4.6.1.3 Overall Machine 90 viii 4.6.2 Drive and Driven System 91 4.6.3 System Operation 92 4.6.4 Design Optimization 95 4.6.4.1 Cutter Blade 96 4.7 Fabrication 97 4.7.1 Bending 97 4.7.2 Welding 98 4.7.3 Turning 99 4.7.4 Milling 100 4.8 Machine testing 101 4.8.1 Testing result 101

5.0 DISCUSSION