（1. Engineering Practice Center，Tongji University，Shanghai 200092，China）（2. Electromechanical College，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China）
The materials in the form of coils are usually used in the fused deposition 3D printer. The difference between tin wire and ABS, PLA coiled material applied to melt deposition 3D printer was analyzed in this paper, such as melting point, mechanical properties, shrinkage, viscosity after melting or softening and so on. Combining with the relevant properties of tin materials, the feasibility of tin wire applied in the fused deposition 3D printer was discussed. Starting from the three parameters of printing speed, layer thickness and temperature, our team took the ratio of the length of tin wire to the total length of the nozzles trajectory as the object to study the stacking forming of tin wire by using control variable method. Finally, the results were analyzed to obtain a practical conclusion and the direction of related research was pointed out.