Investigation and Analysis of Mechanical Platform Optimization for MEM Type 3D Printer

Abstract

To improve the efficiency and precision of the MEM300 granule feeding 3D printer, the motion platform of printer was modelled, and the modal frequency was solved using the ANSYS software. The speed parameters of polarization motor was reasonably set according to the frequency range in modal analysis and the speed of polarization motor measured. Then the professional mechanical simulation software was used to sample the polarization motor speed, the resulting speed parameters were taken as the driving energy, the harmonic response analysis was performed for the entire motion platform. Based on the harmonic response analysis results of mechanical platform, the polarization motors in different speed models are replaced, and the entire mechanical movement was verified. The experiment found that the feeding efficiency of the printer system is not proportional to the rate of polarization motor, and the reasonable velocity is between 38 and 40r/s. When the energy of polarization motor is too high, the vibration in hopper and feeding column will be increased. The method provides a good solution to solve the stability of the mechanical structure.