Step error analysis and its reduce measures for rapid prototyping

With FDM molding procedures clues,the paper analyzed the factors that may affect the accuracy of FDM molding,studied the principle of FDM rapid prototyping led to the principle of error,FDM Rapid Prototyping is a layer of stacked molding,molding parts is the accumulation of adhesive layers formed,and this is bound to form a step error(staircase effect)affect the accuracy of the surface of molded parts,in analyzing the causes of the error error level is proposed based on the factors that affect the level and regularity of the error.On this basis,propose measures to reduce the error level.For the basic idea of stacking layer by layer in rapid prototyping manufacture,analyzed and caculated the positive error caused by step effects during modeling,obtained the factors affecting the error and the error curve,It can be the reference of the design and manufacture of technical staff.