• TITLE: DESIGN AND FABRICATION OF DUAL-HEAD 3D PRINTER
• AUTHOR(S): Van-Tinh Nguyen, Tran Thanh Tung
• ABSTRACT: This study presents the design and fabrication of a dual extruder 3D printer aimed at enhancing multi material and multi color additive manufacturing capabilities. Unlike conventional single head 3D printers, the proposed system integrates two independent extruders, enabling simultaneous deposition of different filaments for increased design flexibility and productivity. The mechanical structure is developed with an aluminum frame, ensuring rigidity and precision. Key subsystems including the X, Y, and Z axes are driven by belt and screw mechanisms, with dynamic analysis conducted to determine operating forces and ensure motion accuracy. Finite Element Method (FEM) simulations verify the structural integrity of the frame under expected loads, showing stress and deformation well within safe limits. The prototype features a working volume of 200×200×250 mm, a maximum printing speed of 55 mm/s, and achieves high dimensional accuracy, demonstrated by a machine bed parallelism deviation of only 0.01 mm. Experimental results validate the effectiveness of the dual head configuration in producing high quality, dual color printed parts, highlighting the printer’s potential in rapid prototyping and customized manufacturing applications.
• DOWNLOAD: Vol71-2025-2.pdf
• HOW TO CITE THIS ARTICLE: Van-Tinh Nguyen, Tran Thanh Tung. Design and Fabrication of Dual- head 3D printer. Journal of Technical University of Gabrovo. 71 (2025)