Extended Data Fig. 2: Printhead flatness and hole diameter repeatability.
From: Voxelated soft matter via multimaterial multinozzle 3D printing

a, 64 × 1 MM3D printhead fabricated using stereolithography. The printhead has a flatness of 8 μm across the total length of the nozzle (60 mm). Scale bars: left, 8 mm; right, 200 μm. b, Histogram showing the diameter of the nozzle outlets. The actual diameters of the nozzle outlets (diameter, 205 ± 5.03 μm; mean ± s.d.) are slightly larger than their designed diameter of 200 μm. (We note that the top image represents a representative view of eight nozzle outlets out of a total of 64 in this 1D nozzle array). Scale bar, 200 μm. Std, standard deviation; C.V., coefficient of variation.