(a) Rectangular shaped windows with external arc length
2.09 mm and height 1.75 mm composed of 12 windows
in each circumferential layer and 13 windows in each
longitudinal column.
(b) Rhomboidal shaped windows with external arc length
2.09 mm, height 1.75 mm, and angle α ~30
composed
of 12 windows in each circumferential layer and 13 windows in each longitudinal column.
2. Export the generated 3D models as stereolithography files
(Surface Tesselation Language, STL).
3. Post-processing of the digital model with MeshMixer might be
necessary in order to refine the mesh, such as repairing discontinuities, smoothing staircasing errors, or even to combine
or remove multiple structures (see Note 11).
Fig. 1 Geometry of the 3D-printed and fenestrated tubular scaffolds
(height ¼ 30 mm, external diameter ¼ 12 mm, internal diameter ¼ 10 mm).
Each layer (n ¼ 13) is designed with 12 windows along the circumference. The
first and last ring are 0.625 mm thick, whereas all other pipes are 0.5 mm thick.
The vertical wall between each window is 1.04 mm. (a) The rectangular
windows are 2.09 mm wide (dimension of the arc on the external surface of
the cylinder) and 1.75 mm high. (b) The rhomboidal windows were designed with
the same dimension of the rectangular windows (w ¼ 2.09 mm, h ¼ 1.75 mm),
and additionally tilted with an angle α of approximately 30
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Elia A. Guzzi et al.
2.09 mm and height 1.75 mm composed of 12 windows
in each circumferential layer and 13 windows in each
longitudinal column.
(b) Rhomboidal shaped windows with external arc length
2.09 mm, height 1.75 mm, and angle α ~30
composed
of 12 windows in each circumferential layer and 13 windows in each longitudinal column.
2. Export the generated 3D models as stereolithography files
(Surface Tesselation Language, STL).
3. Post-processing of the digital model with MeshMixer might be
necessary in order to refine the mesh, such as repairing discontinuities, smoothing staircasing errors, or even to combine
or remove multiple structures (see Note 11).
Fig. 1 Geometry of the 3D-printed and fenestrated tubular scaffolds
(height ¼ 30 mm, external diameter ¼ 12 mm, internal diameter ¼ 10 mm).
Each layer (n ¼ 13) is designed with 12 windows along the circumference. The
first and last ring are 0.625 mm thick, whereas all other pipes are 0.5 mm thick.
The vertical wall between each window is 1.04 mm. (a) The rectangular
windows are 2.09 mm wide (dimension of the arc on the external surface of
the cylinder) and 1.75 mm high. (b) The rhomboidal windows were designed with
the same dimension of the rectangular windows (w ¼ 2.09 mm, h ¼ 1.75 mm),
and additionally tilted with an angle α of approximately 30
154
Elia A. Guzzi et al.