A Framework for Adaptive Width Control of Dense Contour-Parallel Toolpaths in Fused Deposition Modeling

• DOI: 10.1016/j.cad.2020.102907
• Publication Date: 2020-06-24T15:12:50Z
• Authors: Tim Kuipers; Eugeni L. Doubrovski; Jun Wu; Charlie C.L. Wang
• Keywords: Deposition; Fused Deposition Modeling; Bead

3D printing techniques such as Fused Deposition Modeling (FDM) have enabled the fabrication of complex geometry quickly and cheaply. Objects are produced by filling (a portion of) 2D polygons consecutive layers with contour-parallel extrusion toolpaths. Uniform width toolpaths consisting inward offsets from outline produce over- underfill regions in center shape, which especially detrimental to mechanical performance thin parts. In order fill shapes arbitrary diameter densely require adaptive width. Existing approaches for generating result a large variation widths, some hardware systems is difficult realize accurately. this paper we present framework supports multiple schemes generate width, employing function decide number beads their widths. Furthermore, propose novel scheme reduces extreme bead while limiting altered We statistically validate effectiveness our on data set representative models, physically it developing technique, called back pressure compensation, off-the-shelf FDM effectively