... ruler, m3/m4/m5/m6 emergency hex wrench, printed on #bambulabs A1 with amslite using #hilbertcurve fractal for that amazing top surface using standard 0.4mm nozzle

... to print perfect business cards with readable text. It's because it let's a nozzle make one continuous space filling fractal A Rare example of math applied with instant visible results! #print3d