Cover -- Editorial -- Processing of metal-diamond-composites using selective laser melting -- Expanding the applicability of FDM-type technologies through materials development -- Stress-limiting test structures for rapid low-cost strength and stiffness assessment -- In vitro assessment of laser sintered bioactive glass scaffolds with different pore geometries -- A survey of sensing and control systems for machine and process monitoring of directedenergy, metal-based additive manufacturing -- Experimental-assisted design development for an octahedral cellular structure using additive manufacturing -- An exploration of binder jetting of copper -- Enhancing the resolution of selective inhibition sintering (sis) for metallic part fabrication -- Negative stiffness honeycombs for recoverable shock isolation -- Effect of second-phase doping on laser deposited Al2O3 ceramics -- Powder-bed-based 3D-printing of function integrated parts -- Towards a sustainable and economic selection of part candidates for additive manufacturing.