8/18/2023 0 Comments Best free cad for 3d printingIn addition, the number of models placed on a build platform depends on the shape, size, and printing orientation. The printing orientation affects the way the object is layered and the number of layers to be printed. ![]() ![]() Printing at 90 degrees produces the best global correspondence with the master model.įactors that have been reported to affect the precision of 3-D printed surgical guides include: guide design, parameters of fabrication such as light intensity and exposure time, and printing orientation. Within the limitations of this experimental in-vitro study it can be concluded that all the printing orientations influence the angle, the distance, and the thickness between adjacent cylinders of a surgical guide. Printing with 90 degrees orientation produced almost-parallel cylinders but walls thicker than the reference model all the cylinders converged toward the coronal but printing at 0 degrees produced the closest distance to the reference value. In addition, there were global deviations in all printing orientations. The printing orientation affected the distance between cylinders, the parallelism and the wall thickness. One-way analysis of variance and Tukey test were used for multiple comparisons between groups and significance was p < 0.05. Afterwards, the printed guides were scanned and cloud comparison software was used to compare STL files from the printed guides against the reference CAD model. A metrology digital microscope was used to measure the distance, the angle and the thickness of the guides cylinders. ![]() CAD software was used to design a surgical guide with two adjacent parallel cylinders (reference) the design was saved as standard tessellation software (STL) and 63 samples were printed using three different orientations (0, 45, and 90 degrees). This in-vitro study aimed to evaluate the influence of the printing orientation on parallelism, distance, and thickness between adjacent cylinders of 3D-printed surgical guides.
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