This book presents a diverse collection of research contributions from the 9th International Congress on 3D Printing Technologies and Digital Industry 2025 (3DPTC2025), showcasing the rapidly evolving landscape of additive manufacturing, digital design, and smart production. Covering innovations ranging from advanced materialssuch as nanoparticlereinforced composites, recycled polymers, PEEK, and metal powdersto AIdriven process optimization and realtime defect detection, the chapters highlight progress in mechanical engineering, sustainable manufacturing, biomedical applications, and industrial integration. The book features studies on renewableenergypowered systems, improved thermal and structural performance, immersive VR-based educational tools, and design strategies for nextgeneration 3D printing. With additional insights into environmental reuse, cultural heritage preservation, and emerging manufacturing tolerances and standards, this collection offers a comprehensive view of the scientific, technical, and societal dimensions shaping the future of additive manufacturing.

Showcases AIdriven optimization, defect detection, and autonomous AM systems across multiple industries Highlights sustainable AM advances using recycled polymers, waste materials, and energyefficient designs Features novel applications from bioprinted dressings to VRbased training and culturally focused 3D digitalization

Inhalt

Additive Manufacturing Technologies.- Development of a New Apparatus for Cleaning Pet Fur without Shedding.- Design of a 3D-Printed and Renewable Energy-Powered Buoy for Ocean Data and Analysis.- Marine Plastic Waste: Environmental Impacts and Reusability in FDM 3D Printer.- The Impact of Artificial Intelligence on Additive Manufacturing in Mechanical Engineering.- Nanoparticle-Reinforced Materials for Advanced 3D Printing.- Temperature Optimization in Extruding 3D Printing Filament Obtained from Recycled PET Bottles.- Comparative Analysis of Advanced Vision Based Methods for Real-time Defect Detection in Large Format Additive Manufacturing.- Enhancement of Surface Quality of 316l Stainless Steel Parts Produced by Direct Laser Metal Sintering (DLMS) using Abrasive Flow Machining (AFM) Process.- Immersive VR-Enabled 3D Printing Simulator for Technical Education and Digital Skill Development in Industry 4.0.- AI-Driven Solar Energy Optimization for Autonomous 3D Printing Units in Smart Manufacturing Ecosystems.- Sustainable 3D Printing using Recycled Polymers and AI-Based Process Parameter Optimization for Smart Manufacturing.- Experimental Analysis of Additive Manufacturing Process Parameters on the Hardness of PLA-Wood Biocomposites.- 3D-Printed Bolus Alternatives in Radiotherapy: A Dosimetric Study.- Design and Characterization of Faucet Producible with 3D Metal Printer.- Effects of Filler Wires on Mechanical and Structural Properties of AISI H13 (1.2344) Hot Work Tool Steel Welding.- Understanding the Usage of Constitution Diagrams for Wire Arc Additive Manufacturing of Steels.- Investigation of the Use of PPS Material as an Alternative Raw Material in the Production of Inner Bodies for Water Fittings.- Investigation of Temperature and Viscosity Distribution of PEEK Filament in the Heat Block of FDM Printers Using Finite Element Method.- Cost-Effective Cable Assembly Fixtures in Low-Volume Automotive Production using 3D Printing.- Revitalizing Additive Manufacturing through AI Driven Design and Inventive Strategies for Next Generation 3D Printing.- Tolerances Prediction of 3D Printed Machine Parts for Assembly.- Sustainable Design and Manufacturing of Plastic Gears.- Recycling of Agricultural Waste for Wound Healing: Effect of Bioactive Compounds Extracted from Plant on 3D-Printed Polycaprolactone-Based Dressings.- Preserving the Identity of Antalya's Ancient Cities with Digitalization and 3D Printing.- Magnetic Performance of 3D-Printed Toroidal Inductors Based on PLA/ZnNiFe Composites.- Composite Filament Production and Its Performance on Pull-Out Test of the Vertebral Bone Mimic.- Investigation of the Effect of Bonding of Parts Produced from ABS Granular Material with ABS Slurry and Glass Fiber Reinforced Polyester on the Tensile Strength.- Performance of Laser Powder Bed Fusion (LPBF)-Based Coolers for Semi-Conductive Thermoelectric Modules.- Artificial Intelligence-Driven Filament Drying Processes in Fused Deposition Modelling Additive Manufacturing.- Matlab and Simscape Framework for 3D Printer Hotend Thermal Management with Conceptual Fuzzy Logic Heater and PID Fan Control.- Corrosion Studies of Additive Manufactured Lattice Architectures.