Fig. 4
From: Designing of PLA scaffolds for bone tissue replacement fabricated by ordinary commercial 3D printer
Structure description of printed ST1 and ST2. a Overall view of the scaffold ST1 from the top. b Detail of ST1 view from the top - Printed samples showed satisfactory external and internal geometry. c Sectional view of ST1 fibres. It can be seen that there is no porous or any other structural damages in an internal structure of the fibre. This is an important finding for the evaluation of mechanical properties of the overall scaffold. d Overall view of the scaffold ST2 from the top. e Detail of the view from the top - Printed samples showed satisfactory external and internal geometry. f Sectional view of the scaffold ST2. It can be seen that the precision of layering is of less quality than in the case of ST1 as the gaps between fibres are wider. Bar = 0.5 mm