Textbook in PDF format 3D printing is transforming industries from design to manufacturing and has become a vital skill for modern innovators. This book offers a clear, structured path that develops the reader’s ability to operate and apply 3D printing confidently. One of the major emphases of this book is hands-on learning, ensuring that readers not only understand the concepts but also practically execute real 3D printing tasks. Focusing on FFF technology, it covers materials like PLA and ABS, essential printing parameters, design for additive manufacturing, the CAD to G-code workflow, and multiple 3D modelling methods. Readers will also learn troubleshooting, printer assembly and calibration, and fabrication processes. By the end of the book, the readers will have an overview of major 3D printing technologies, Industry 4.0 integration, and the role of AI in enhancing 3D printing capabilities. It serves as a practical, accessible guide for anyone working with or learning 3D printing. What you will learn Practical, hands-on skills for operating and experimenting with 3D printers. Core principles, workflow, and advantages of 3D printing. Materials and their key properties. Choosing optimal print settings for quality and efficiency. Multiple 3D modelling techniques. Printer assembly, levelling, calibration, and basic firmware setup. Troubleshooting and post-processing. Major 3D printing technologies and applications. IoT and robotics integration for Industry 4.0. Using AI to enhance 3D printing workflows and outcomes. Who this book is for Ideal for readers with no prior experience in 3D printing, this book presents concepts in a clear, easy-to-apply manner and helps build practical, hands-on skills relevant across industries. Table of Contents Introduction to 3D Printing Materials in 3D Printing D Printing Parameters Designing for 3D Printing Designing Basic Shapes Designing Advanced Shapes Post-processing and Troubleshooting Fabrication of a 3D Printer Additional Topics on 3D Printing D Printing and Industry 4.0 Enhancing 3D Printing using AI APPENDIX: Designing 3D Models