i make this block base on anti-warp octahedron truncated from ablapo and i test is strengh at the mine i work with a chain block. i lift a steel plate 1 inch thick by 4 feet large and 6 feet long(irregular) we estimate the weight of the plate about 700 pound approx. this his HUGE!!! for a few gramms of nylon! if somebody got the knowledge to put this infill pattern in a slicer,do it because it's make crash software if you try to do a big part with it.printed in this position , it got more strengh. temp extruder:245 c temp bed:none 0% infill but you can try with some 6 shells 40 mm/s print speed