The metal MEX received much interest due to its low cost and simplicity, especiallyafter the introduction of Ultrafuse 316L® filament by BASF SE, MetalX system by Markforged, Inc. and Studio+ System by Desktop Metal, Inc. Metal MEX is different from theMIM during the green part fabrication, which utilises layer-by-layer printing instead ofinjection. The most popular metal MEX printer is the filament-based type. The metalfilament should have high flexural strength and stiffness so that the filament can be spooled.As a result, the solid loading is typically lower than MIM feedstock or polymer skin can beintroduced to increase the filament flexibility. Special purposed and closed metal printersseem to provide more consistent and better printing quality