MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION GRADUATION THESIS RESEARCH, DESIGN AND MANUFACTURE 3D PRINTER USING DELTA MECHANISM LECTURER: Ph.D VO XUAN TIEN STUDENT: NGUYEN THANH LUAN HUYNH XUAN BANG TRINH XUAN DUC SKL012631 Ho Chi Minh City, January 2024 HO CHI MINH UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH QUALITY TRAINING *********** GRADUATION THESIS RESEARCH, DESIGN AND MANUFACTURE 3D PRINTER USING DELTA MECHANISM Supervisor: Ph.D VO XUAN TIEN Student’s name: NGUYEN THANH LUAN STUDENT ID: 19143081 HUYNH XUAN BANG STUDENT ID: 19143065 TRINH XUAN DUC STUDENT ID: 19143064 Academic year: 2019 – 2024 Ho Chi Minh city, March 2024 i HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH QUALITY TRAINING _______________________ GRADUATION THESIS RESEARCH, DESIGN AND MANUFACTURE 3D PRINTER USING DELTA MECHANISM Supervisor: Ph.D VO XUAN TIEN Student’s name: NGUYEN THANH LUANSTUDENT’ ID: 19143081 HUYNH XUAN BANG STUDENT’ ID: 19143065 TRINH XUAN DUC STUDENT’ ID: 19143064 Academic year: 2019 – 2023 Ho Chi Minh city, March 2024 ii HO CHI MINH UNIVERSITY OF TECHNOLOGY AND EDUCATION SOCIALIST REPUBLIC OF VIETNAM HIGH QUALITY TRAINING FACULTY Independence - Freedom - Happiness GRADUATION PROJECT TASKS Semester I/School year 2023 Instructor: Ph.D Vo Xuan Tien Student:Nguyen Thanh Luan STUDENT ID: 19143081 Contact: 0935684294 Huynh Xuan Bang STUDENT ID: 19143065 Contact: 0918035615 Trinh Xuan Duc STUDENT ID: 19143064 Contact: 0967729238 1. Project ID number: CTM-103 -Topic name: RESEARCH, DESIGN AND MANUFACTURE 3D PRINTER USING DELTA MECHANISM 2. Initial figures and documents: 3. Main contents of the project: - Learn the theory of delta printer.
- Create printed project to use in education, industrial,… - Complete delta 3d printer. - Collect and analyze results. Expected products: 3D printer using delta mechanism 5. Project submit date: __/03/2024 6.
Date of delivery of the project: 15/07/2023 7. Presentation Language: The report: English Vietnamese Protection presentation: English Vietnamese DEAN OF FACULTY DEAN OF MAJOR INSTRUCTOR (Sign, specify full name) (Sign, specify full name) (Sign, specify full name) Permitted to present the research project: …………………. (Instructor sign, specify full name) iii Topic name: RESEARCH, DESIGN AND MANUFACTURE 3D PRITERS USING DELTA MECHANISM Instructor: Ph.D Vo Xuan Tien Student name: Nguyen Thanh Luan STUDENT’ ID: 19143081 Contact: 0935684294 Address: Email: 19143081@student.vn Huynh Xuan Bang STUDENT’ ID: 19143065 Contact: 0918035615 Address: Email: 19143065@student.vn Trinh Xuan Duc STUDENT’ ID: 19143064 Contact: 0967729238 Address: Email: 19143065@student.vn Class: 19143CLA3, 19143CLA2, 19143CLA2. Thesis submission date: __/03/2024.
Commitment: “We promise this is an article that we researched. We do not copy or arbitrarily use materials, quotes, or articles without citing the source. If there is a violation, we will take all responsibility.” Ho Chi Minh City, __March 2024 Signature iv SOCIALIST REPUBLIC OF VIETNAM Independence - Freedom - Happiness INSTRUCTOR'S TESTIMONIALS Student name:. About the content of the topic & the volume of implementation:.
Recommended for protection or not? .) Ho Chi Minh City, date… month… year 20… Instructor (Sign & write full name) v SOCIALIST REPUBLIC OF VIETNAM Independence - Freedom - Happiness ADVISOR'S TESTIMONIALS Student name:. About the content of the topic & the volume of implementation:. Recommended for protection or not? .) Ho Chi Minh City, date… month… year 20… Advisor (Sign & write full name) vi Acknowledgement Ph. Vo Xuan Tien, your wealth of knowledge and mentorship have been crucial in guiding us towards excellence.
Your constructive criticism and tireless commitment to our project's quality have truly made a significant impact on our work. We would like to once again thank Ph. Vo Xuan Tien and all the faculty committee professors for their tremendous support and encouragement throughout this journey. We are truly grateful for their belief in our abilities and the opportunity to learn from their expertise.
Our experience under their mentorship has undoubtedly shaped us into better individuals, equipped to tackle future challenges. We also extend our heartfelt appreciation to all the faculty committee for their insightful input, valuable critiques, and continuous support. Their diverse perspectives and encouragement have enriched our project and expanded our understanding of the subject matter. Their encouragement has fueled our determination to strive for greatness.
Furthermore, we express our gratitude to the entire faculty for providing us with the necessary resources and creating a nurturing environment that allowed us to successfully complete our project. Their unwavering support and commitment to our academic advancement have been invaluable. We are deeply grateful and in awe of the immense support and guidance provided by Ph. Vo Xuan Tien throughout our graduation project.
His expertise, feedback, and unwavering dedication have been instrumental in helping our team achieve success. We are honored and grateful for the opportunity to have worked under the guidance of these esteemed individuals. Their passion, dedication, and unwavering support have played a pivotal role in our academic and professional growth. vii SUMMARY ❖ The urgency of the topic.
In today's world, applications of rapid forming, meeting practical needs are the foundation for the development of rapid prototyping machines (3D printing – 3D printer). Applicability in many fields such as product model manufacturing, healthcare, education, architecture. The development of 3D printing technology will help the production process as well as the design stage shorten the time to create products, bringing ideas into real objects for easier analysis, helping designers to be more flexible and creative when coming up with ideas without having to fear how to create that product, and how long it takes to form it. So 3D printing is the best rapid prototyping tool.
❖ Scientific and practical significance of the topic. For the purpose of learning and researching the field of 3D printing, the group chose the topic "Design and Manufacture of 3D printers based on parallel configurations" with the following objectives: Participate in research and learn 3D printing rapid prototyping technology. Application of 3D printing in practice. Research products that meet commercial needs.
❖ Research objectives of the project. Learn and calculate the kinematics of the machine. Design drawings and hardware fabrication of the machine. Development of 3D printers based on parallel robot configurations according to 3D printing method FDM.
Learn some of the printing errors of the 3D printing method and offer solutions based on experiments. ❖ Subjects and scope of research. Translational structure Delta parallel robot. FDM (Fused Deposition Manufacturing) 3D printing method, which uses PLA plastic fibers to create samples.
viii - Scope of research. Research and manufacture parallel structured 3D printers. Print the largest specimens with a diameter of 220mm and a height of 300mm. The printing material is PLA plastic fiber.
Choose the main method of analyzing and summarizing experience, but also practical research methods and study materials to give accurate results. - Specific research methods. From practical research, come up with ways to design, manufacture and repair the system. Step 1: Learn quick prototyping methods on the internet, books and newspapers.
Step 2: Analyze the selection of feasible rapid prototyping methods and proceed with the design by comparing the advantages and disadvantages of prototyping methods. Step 3: Learn the rapid prototyping process and write the algorithm that controls the 3D printer. ix TABLE OF CONTENTS Contents GRADUATION PROJECT TASKS.iii INSTRUCTOR'S TESTIMONIALS. viii ❖ Scientific and practical significance of the topic.
viii ❖ Research objectives of the project. viii ❖ Subjects and scope of research. viii - Scope of research. ix ❖ Research methodology.
ix - Specific research methods. ix LIST OF TABLES. xv LIST OF ACRONYMS. Introduction to rapid prototyping.
The birth and development of rapid prototyping. Early stage: Manual prototyping. Second era: Prototyping software or virtual prototyping. The Third Period: Rapid Prototyping.
Application of rapid prototyping. New product development. Check the working function of the product. Application in medicine.
Rapid prototyping methods. FDM 3D Printing Method (Fused Deposition Manufacturing). Classification of fast machining methods based on printed materials. FDM 3D Printing Method Analysis (Fused Deposition Manufacturing).
Reasons to choose FDM. Principle of operation. Surface accuracy and quality. Choice of use.
Delta parallel robot structure applied in the topic. General introduction of Delta parallel robots. Some advantages and disadvantages of parallel robots. STUCTURAL DESIGN 3D-PRINTING MACHINE AND SOLUTIONS.
Analyze some of the essentials of a Delta 3D printer. Make a design plan from the requirements given. Analysis of truss frame design selection. Analysis of powertrain selection.
Analysis of the selection of printing materials. 3D printing material nozzle construction. The effect of temperature on the operation of the print head. Consider the parallel robot structure to find out the number of degrees of freedom of the structure: .1 Design of the Stepper Motor.
40 ❖ Stepper Motor Specifications:. 41 ❖ Choosing a GT2 pulley for machine design:. Kinematic calculations for mechanical hands.Prismatic delta robot configuration analysis. Model tomography algorithm 3D (*.2 Formats and specifications.
52 ❖ STL ASCII Format. 55 ❖ Binary STL format .stl file tomography algorithm. EXPERIMENTATION AND EVALUATION. Finished Delta 3D printer texture.
Experimentally measure the error of the printed sample.3 Evaluate and fix errors.1 The phenomenon of product warping.2 The phenomenon of opening the upper surface.3 Openings between layers.4 Some notes before printing the template.4 Errors in the FDM prototyping process, optimizing technological parameters affect the accuracy of the sample.5 Optimizing technological parameters affects the accuracy of the sample.2 Determine the accuracy of the sample generated by the 3D printer based on a parallel configuration.6 Measurement of nozzle height error with the print bed. CONCLUSION AND DIRECTION OF DEVELOPMENT. 76 xiv LIST OF TABLES Table 5.2: Nozzle error with the print table .3: The sample tested on the printer has the following specifications: .4: The value of empirical parameters .73 xv LIST OF ACRONYMS ABS: Acrylonnitrile Butadiene Styrene CAD: Computer Aided Design CAE: Computer-aided engineering CAM: Computer-aided manufacturing CMM: Coordinate Measuring Machine FDM: Fused Deposition Manufacturing LOM: Laminated Object Manufacturing PLA: Polylactic Acid FDM: Fused Deposition Manufacturing RP: Rapid prototyping STL: Stereolithography SLA: Stereo lithographyapparatus SGC: Solid Ground Curing SLS: Selective Laser Sintering SLS: Selective Laser Sintering xvi CHAPTER 1. Introduction to rapid prototyping.
Rapid prototyping is a method of quickly creating product models from 3D data by building them layer by layer under computer control. Rapid Prototyping is also known variously as Layered Manuafacturing, Additive Manuafacturing or 3D Printing. Rapid prototyping technology can also be understood as a type of technology that can directly create a three-dimensional object in a very short time, usually through only 1 element. With the help of CAD software, create physical models as databases for rapid prototyping machines.
The model object is created using an appropriate material depending on the method of the rapid prototyping machine. 3D printing is one of the methods of rapid prototyping that creates a 3D object by stacking layers of material on top of each other until the object is completely shaped. Each layer is a thin and horizontal slice of matter. The material added (additive) and bonded together to form the sample is not material cutting like traditional machining methods where the sample is created in a layered pattern, the latter layer is created on top of the previous layer.
Allows prototyping of objects of complex shapes that cannot be machined with conventional cutting machining methods. Significantly reduce machining time. Create shapes directly from CAD data. Allows prototyping of objects with complex shapes.
The birth and development of rapid prototyping. The prototyping process is divided into three stages. The latter two periods have only been born in the last 20 years or so. Similar to computerized prototyping, the physical properties of samples were only developed in the third period.
Early stage: Manual prototyping. The first period was born several centuries ago. During this period, typical samples are not highly complex, and fabricating an average sample takes about 4 weeks. The prototyping method depends on workmanship and performs the work in an extremely heavy lifting way.