Capstone Design Team. CHI-A 정준영 전우준 김건식 김병찬 한일환

Bending Machine for Orthodontic Archwires

Problem Statement Project Objectives Test & Evaluation Index 3 Design Process 5 6 Final Product Question & Answer

4 Why is it expensive to have Orthodontic Instruments? In this page, we are trying to find out the reasons. Components Technique Expert (Dentist) Apparatus Bracket Orthodontic Archwires Patents Monopoly on technique Problem Statement 1 Dental clinic

5 We need to change the Current Status!! No precede Korean technical development and patent, yet. Problem Statement 1 In USA, Europe there exist Bending Machines For Orthodontic Archwires. In terms of Orthodontic Archwires, To Design a Bending Machine To Develop Local Techniques

6 Why have we chosen this subject? These followings are the reasons we have chosen the topic. Project Objectives 2 Designing a Bending Machine in our own way I.To meet the Increasing Demand for patient II.To make Economical Advantages in production III. To offer Short Delivery Period Makes Possibilities

7 Project Objectives These are the objectives we will accomplish. Project Objectives

8 Project Objectives Project Objectives 2 Linear motion Roll angle Bending Wire 3 DOFs are needed for wire bending 1. 3 degrees of freedom

9 Project Objectives Project Objectives 2 Computer (LabVIEW) Processor (FPGA) Motor operation 2. Simple program to operation (LabVIEW)

10 Project Objectives Project Objectives 2 3. High quality product CompetitorsObjectives Minimum bending length 2.2mm (Orametrix, USA) Less than 2mm Bending angle error less than 0.8 degree (Orametrix, USA) (experiment need) Bending time 40 seconds (Orametrix, USA) Less than 40 seconds Available wire shape round and square (Orametrix, USA), square (3M, Germany) round and square

11 Economical Profits In this page, numbers will be shown to be compared. Project Objectives 2 Price[won] Unitek3million Suresmile2.5million Our product1milion

12 Time Profits In this page, numbers will be shown to be compared. Project Objectives 2 Product[day]Delivery[day] Unitek28~3014~15 Suresmile24~2814~15 Our product1~2

3. Design Process 1) Concept Development 2) Concept Selection 3) Manufacturing Hardware 4) Developing Software

14 Concept Development This page is about Our initial design concept and its development. Design Process 3 Linear motion Roll angle Wire

15 Concept Selection This page is about the bending part. Design Process 3 Guides Pins Engaging part of the Pin and the Motor Wire Motor Installing the two Guides in order to allow for bi-directional bending

16 Realistic Constraints We are working on developing codes using Labview. Design Process 3 Control in FPGA Economy, Environment, Society, Ethics, Aesthetics, Health and Safety, Productivity, Durability, Industrial Standards.

17 Manufacturing Stage We are working on developing codes using Labview. Design Process 3 1. Initialization 2. Check 3d graph, first slope 3. Tuning the property of bending wire (company, shape, thickness)

18 Manufacturing Stage We are working on developing codes using Labview. Design Process 3 Make pulses by bending point data Monitoring by array 1. Using first slope and data of bending point make pulse 2. The pulse go next step *Can monitoring

19 Manufacturing Stage We are working on developing codes using Labview. Design Process 3 Control in FPGA 1. Linear motion, roll, bending in FPGA 2. Control motors by pulses

20 Manufacturing Stage We are working on developing codes using Labview. Design Process 3 Control in FPGA In final presentation… We won’t spend slide this much for Labview algorithm.

21 Manufacturing Hardware Stage This picture shows our design of bending machine. Design Process 3

22 Manufacturing Hardware Stage This picture shows our assembled bending machine. Design Process 3

23 Why is it required to have tests? Because of Spring-back effect, test is required. Test & Evaluation 4 We will find out spring back coefficient by experiment

24 Why is it required to have tests? Test & Evaluation 4

25 Why is it required to have tests? Test & Evaluation 4 These are fake data… Experiment Fitted function

26 How do we Evaluate Our Product? … Test & Evaluation 4 Criteria Accuracy Minimum bending length Bending angle error Bended wire width Bended wire shape Time Bending time

27 Bending Machine for Orthodontic archwires Maybe, Demonstration or Simulation Video will be shown here. Final Product 5

28 Any question and advice are welcome :D Do not hesitate. Just raise your hands. Question & Answer 6

Thank You