Dimensional accuracy improvement of part fabricated by low cost 3D open source printer for industrial application

3D open source printer (3D-OSP) based on fused deposition modelling (FDM) technique is one of the newly developed rapid prototyping (RP) process for the fabrication of parts. It has been observed from research finding that the contribution of parameter such as raster width, slice height, and path speed are the most significant to the dimensional accuracy of 3D open source product. In this paper, an attempt has been made to find out the influence of the process parameter along with their interactions on the 3D-OSP. Taguchi parameter design has been used to find out the optimum parameters level to minimize percentage change in length (L1), length (L2) and height (H) of test specimens. Experimental result reveals that there is different optimal parameters level setting for each dimensional characteristic namely change in length (L1), length (L2) and height (H). Therefore, grey relational method is used to obtain optimum factor level of each dimensional characteristic simultaneously. From obtain result it is conclude that appropriate control of machine process parameters improve the dimensional accuracy of parts fabricated by a low cost 3D open source printer for industrial/commercial application.