The real FDM 3D printer torture test

thingiverse

Print this cube at 100% infill to see how well your printer handles difficult projects, such as overhangs and bed adhesion. It's an ideal test piece for evaluating these crucial aspects of your printer's performance. You can scale it up or down, but make sure it's not too small, as that would distort the results. This design is a step beyond a simple lattice cube, pushing your printer to its limits.