In view of the diversification of the demand of many users for 3D printing technology and the high price of 3D printers in the current market, it hinders the widespread application and promotion of 3D printers and seriously affects the development of 3D printing technology, and now proposed a home-based, universal, and based on three-freedom cantilever mechanical structure of the 3D printer exploration program. This 3D printer in the structural improvements expand the scope of the print, and the software design makes the user interface more friendly and humane, and the combination of the two also makes the machine slightly smaller size, lower costs. In general, it can meet the large most pay-for-home or individual, business needs for cost-effective.

Abstract. 3D printing is a new type of mainstream processing technology in the field of industrial design. Compared with traditional manufacturing technology, 3D printing can manufacture more complex products with low cost, high efficiency and simple operation. It use the computer software design and modeling of three-dimensional digital materials with the material printer to promote the manufacture of products. Industrial design is one of the most important applications of 3D printing technology, so the author mainly studies and analysis the opportunities brought by 3D printing technology for industrial design and how to actively face the challenge. Through the research, we found that 3D printing technology has brought good prospects for industrial design, which not only accelerate the development of industrial design, but also make the manufacturing of products to meet the needs of more users.

Abstract. In recent years, 3D printing technology has been used in all walks of life because of the rapid development of 3D printing technology. Due to the pursuit of personalization, color 3D printing technology has developed rapidly since its appearance. This paper first summarizes the research development and application status of FDM color 3D printing. Starting with the printing process and technical principle of FDM color 3D printing technology, the shortages and main contradictions of the existing color printing nozzles are summarized. The design principle, structure, merits and demerits of the multi-color printing nozzle are analyzed, and some improvements are proposed for the current nozzle. The goal is to take color 3D printing a step further.