Image of model tablet and printed tablets. A) The hollow tablet model; B) Design of tablet wall structure; C) representative 3D printed tablet (diameter 10.0 mm, height 6.5 mm, wall thickness 2.5 mm); D) horizontal cross section of the tablet with 50% infill, 0.4 mm shell; E) cross section of the tablet with 80% infill, 0.8 mm shell; F) cross section of the tablet with 80% infill, 0.4 mm shell.