Plastic, the main material of FFF-type 3D printing, exhibits lower strength compared to metal. research aimed at increasing strength is
needed for use in various industrial fields. This study analyzed three X-shape infill patterns(grid, lines, zigzag...
Plastic, the main material of FFF-type 3D printing, exhibits lower strength compared to metal. research aimed at increasing strength is
needed for use in various industrial fields. This study analyzed three X-shape infill patterns(grid, lines, zigzag) with similar internal lattice
structure. Moreover, tensile test considering weight and printing time was conducted based on the infill line multiplier and infill overlap
percentage. The three X-shape infill patterns(grid, lines, zigzag) showed differences in nozzle paths, material usage and printing time.
When infill line multiplier increased, there was a proportional increase in tensile strength/weight and tensile strength/printing time. In terms
of infill overlap percentage, the grid pattern at 50% and the zigzag and lines patterns at 75% demonstrated the most efficient performance.