3D　printing　has　the　unique　advantages　of　personalized　customization　and　machining　of　pure　metal　parts.　However,　high　equipment　cost　of　laser　3D　printing　to　prepare　pure　metal　parts　has　limited　the　wide　application　of　metal　3D　printing.　Combination　of　material　extrusion　(MEX)　with　debinding　and　sintering　leads　to　a　low-cost　process　of　creating　solid　metal　parts.　In　this　study,　filament　filled　with　316 L　stainless　steel　(316LSS)　powder　at　91　wt%　is　used　to　fabricate　full　metal　parts.　The　3D　printing,　debinding,　and　sintering　process　are　thoroughly　investigated,　and　the　parameters　are　optimized　with　respect　to　the　properties　of　the　part.　A　two-step　debinding　process　is　performed　especially　to　obtain　full　metal　parts.　Cyclohexane　debinding　is　optimized　to　create　an　interconnected　network　to　ensure　the　full　release　of　the　binder.　Thermal-debinding　process　is　optimized　based　on　thermogravimetric　analysis.　Physicochemical　characterization　of　the　parts　is　then　performed.　After　processing,　parts　show　the　highest　density,　microhardness,　and　tensile　strength　of　94.23%,　131.36　HV,　and　343 MPa,　which　are　comparable　to　the　average　level　of　previous　reports.　The　reported　process　technique　in　this　study　opens　the　way　to　create　intricate-shaped　316LSS　parts　for　complex　bionic　structures,　functional　integration,　lightweight,　shape　cooling,　prototype　spare　parts,　and　biological　implants,　making　it　a　new　choice　to　manufacture　metal　parts　for　engineering　applications.　©　2023,　The　Author(s),　under　exclusive　licence　to　Springer-Verlag　London　Ltd.,　part　of　Springer　Nature.