... microextrusion micro 3D printing Table 1 A summary of important parametric relationships Variable Typical range Underlying relationships Nozzle size (0.5–50 µ m) 0.5 µ m (polyelectrolyte inks, μ = 7.6 Pa s) [ 53 ] 50 µ m (solder paste, μ = 30 Pa.s) [ 54 ] 1...