Fig. 4From: Understanding the relationship between slicing and measured fill density in material extrusion 3D printing towards precision porosity constructs for biomedical and pharmaceutical applicationsThe 3D printer used for validating the predicted fill density percent calculations (a) and 20 × 20 × 5 mm3 samples (right) with the respective Slic3r fill density percent values in inset boxes shown with a quarter dollar coin (~ 24 mm diameter) for scale (b)Back to article page