The use of a thermoplastic molding composition for 3D printing, consisting of a mixture of the components A to E: A: 35 to 60 wt% of at least one impact-modified polymer A, consisting of the components a and b: a: 30 to 95 wt% of at least one styrene-acrylonitrile copolymer a having an average molar mass Mw of 150 000 to 350 000 g/mol, obtained by polymerization of: a1: 18 to 35 wt% of acrylonitrile, and a2: 82 to 65 wt% of styrene; b: 5 to 70 wt% of at least one graft copolymer b as impact modifier, with b1: 45 to 85 wt% of a graft base b1, obtained by polymerization of: b11: 80 to 100 wt% of 1,3-butadiene, b12: 0 to 20 wt% of styrene; b2: 15 to 55 wt% of a graft b2, obtained by polymerization of: b21: 70 to 90 wt%, preferably 72.5 to 85 wt%, of styrene; b22: 10 to 30 wt%, preferably 15 to 27.5 wt%, of acrylonitrile; B: 33 to 58 wt% of at least one polyamide B selected from the following: polyamide 6 (polycaprolactam), polyamide 6,6 (polyhexamethyleneadipamide), polyamide 4,6 (polytetramethyleneadipamide), polyamide 5,10 (polypentamethyleneadipamide), polyamide 6,10 (polyhexamethylenesebacamide), polyamide 7 (polyenantholactam), polyamide 11 (polyundecanolactam), and polyamide 12 (polydodecanolactam); C: 1 to 10 wt% of at least one compatibilizer C based on a styrene-acrylonitrilemaleic anhydride terpolymer obtained by polymerization of: C1: 72 to 84.5 wt%, preferably 74 to 84 wt%, of styrene; C2: 15 to 27.5 wt%, preferably 15 to 25 wt%, of acrylonitrile; C3: 0.5 to 5 wt%, preferably 1 to 3 wt%, of maleic anhydride; D: 0.01 to 5 wt% of one or more auxiliaries selected from the following: stabilizers, oxidation retarders, agents against thermal decomposition and decomposition by ultraviolet light, lubricants and mold release agents, processing assistants, and plasticizers; E: 0 to 30 wt% of one or more further additives E; where the sum of the components A, B, C, D and, if present, E makes 100 wt%. A: 35 to 60 wt% of at least one impact-modified polymer A, consisting of the components a and b: a: 30 to 95 wt% of at least one styrene-acrylonitrile copolymer a having an average molar mass Mw of 150 000 to 350 000 g/mol, obtained by polymerization of: a1: 18 to 35 wt% of acrylonitrile, and a2: 82 to 65 wt% of styrene; b: 5 to 70 wt% of at least one graft copolymer b as impact modifier, with b1: 45 to 85 wt% of a graft base b1, obtained by polymerization of: b11: 80 to 100 wt% of 1,3-butadiene, b12: 0 to 20 wt% of styrene; b2: 15 to 55 wt% of a graft b2, obtained by polymerization of: b21: 70 to 90 wt%, preferably 72.5 to 85 wt%, of styrene; b22: 10 to 30 wt%, preferably 15 to 27.5 wt%, of acrylonitrile; a: 30 to 95 wt% of at least one styrene-acrylonitrile copolymer a having an average molar mass Mw of 150 000 to 350 000 g/mol, obtained by polymerization of: a1: 18 to 35 wt% of acrylonitrile, and a2: 82 to 65 wt% of styrene; a1: 18 to 35 wt% of acrylonitrile, and a2: 82 to 65 wt% of styrene; b: 5 to 70 wt% of at least one graft copolymer b as impact modifier, with b1: 45 to 85 wt% of a graft base b1, obtained by polymerization of: b11: 80 to 100 wt% of 1,3-butadiene, b12: 0 to 20 wt% of styrene; b2: 15 to 55 wt% of a graft b2, obtained by polymerization of: b21: 70 to 90 wt%, preferably 72.5 to 85 wt%, of styrene; b22: 10 to 30 wt%, preferably 15 to 27.5 wt%, of acrylonitrile; b1: 45 to 85 wt% of a graft base b1, obtained by polymerization of: b11: 80 to 100 wt% of 1,3-butadiene, b12: 0 to 20 wt% of styrene; b11: 80 to 100 wt% of 1,3-butadiene, b12: 0 to 20 wt% of styrene; b2: 15 to 55 wt% of a graft b2, obtained by polymerization of: b21: 70 to 90 wt%, preferably 72.5 to 85 wt%, of styrene; b22: 10 to 30 wt%, preferably 15 to 27.5 wt%, of acrylonitrile; b21: 70 to 90 wt%, preferably 72.5 to 85 wt%, of styrene; b22: 10 to 30 wt%, preferably 15 to 27.5 wt%, of acrylonitrile; B: 33 to 58 wt% of at least one polyamide B selected from the following: polyamide 6 (polycaprolactam), polyamide 6,6 (polyhexamethyleneadipamide), polyamide 4,6 (polytetramethyleneadipamide), polyamide 5,10 (polypentamethyleneadipamide), polyamide 6,10 (polyhexamethylenesebacamide), polyamide 7 (polyenantholactam), polyamide 11 (polyundecanolactam), and polyamide 12 (polydodecanolactam); C: 1 to 10 wt% of at least one compatibilizer C based on a styrene-acrylonitrilemaleic anhydride terpolymer obtained by polymerization of: C1: 72 to 84.5 wt%, preferably 74 to 84 wt%, of styrene; C2: 15 to 27.5 wt%, preferably 15 to 25 wt%, of acrylonitrile; C3: 0.5 to 5 wt%, preferably 1 to 3 wt%, of maleic anhydride; C1: 72 to 84.5 wt%, preferably 74 to 84 wt%, of styrene; C2: 15 to 27.5 wt%, preferably 15 to 25 wt%, of acrylonitrile; C3: 0.5 to 5 wt%, preferably 1 to 3 wt%, of maleic anhydride; D: 0.01 to 5 wt% of one or more auxiliaries selected from the following: stabilizers, oxidation retarders, agents against thermal decomposition and decomposition by ultraviolet light, lubricants and mold release agents, processing assistants, and plasticizers; E: 0 to 30 wt% of one or more further additives E; where the sum of the components A, B, C, D and, if present, E makes 100 wt%.