The Weidai Digital S5 3D printer is a professional-grade, large-format continuous-fiber 3D printing system designed for industrial applications. The system supports FFF Plus, CFC, and CFD triple-extrusion technologies, enabling the composite printing of high-performance polymer materials with continuous-fiber materials to produce composite parts that offer high strength, resistance to extreme temperatures, and a long service life. Compared to traditional 3D printing equipment, the S5 series not only prints standard plastic parts but also significantly enhances the mechanical properties of printed parts through continuous fiber reinforcement technology, giving them the potential to replace certain metal components, molded parts, and functional structural components. This product is suitable for applications in aerospace, mechanical engineering, automation and robotics, marine engineering, electrical engineering, home appliance manufacturing, R&D design, and processing and manufacturing. With “rapid manufacturing of high-performance composite components” as its core objective, the project addresses challenges in traditional manufacturing—such as long lead times, high costs, difficulties in customization, and limitations in lightweight design—to provide enterprises with efficient, accessible, and sustainable digital manufacturing solutions for R&D, small-batch production, structural validation, and functional component manufacturing.