Coextruded, multilayer and multicomponent 3D printing inputs

A method of producing a multi-material meltable 3D printer product filament having a length, comprising:

• obtaining a section of a first solid 3D printer meltable filament which is aligned in-line or perpendicular to the length of the meltable 3D printer product filament and having a first chopped end including a first shape comprising at least one planar surface that is angled relative to the length of the meltable 3D printer product filament;
• obtaining a section of a second solid 3D printer meltable filament which is aligned in-line or perpendicular to the length of the meltable 3D printer product filament and having a second chopped end including a second shape comprising at least one planar surface that is angled relative to the length of the meltable 3D printer product filament,
• stacking and welding the first chopped end of the section of the first solid 3D printer meltable filament and the second chopped end of the section of the second solid 3D printer meltable filament wherein the first shape of the first chopped end of the section of the first solid 3D printer meltable filament and the second shape of the second chopped end of the section of the second solid 3D printer meltable filament are complementary to one another and define a transition between the section of the first solid 3D printer meltable filament and the section of the second solid 3D printer meltable filament;
• and
• stacking and welding multiple sections of the first solid 3D printer meltable filament aligned in-line to the length of the meltable 3D printer product filament.

A method of producing a multi-material meltable 3D printer product filament having a length, comprising:

• obtaining a section of a first solid 3D printer meltable filament which is aligned in-line or perpendicular to the length of the meltable 3D printer product filament and having a first chopped end including a first shape comprising at least one planar surface that is angled relative to the length of the meltable 3D printer product filament;
• obtaining a section of a second solid 3D printer meltable filament which is aligned in-line or perpendicular to the length of the meltable 3D printer product filament and having a second chopped end including a second shape comprising at least one planar surface that is angled relative to the length of the meltable 3D printer product filament,
• stacking and welding the first chopped end of the section of the first solid 3D printer meltable filament and the second chopped end of the section of the second solid 3D printer meltable filament wherein the first shape of the first chopped end of the section of the first solid 3D printer meltable filament and the second shape of the second chopped end of the section of the second solid 3D printer meltable filament are complementary to one another and define a transition between the section of the first solid 3D printer meltable filament and the section of the second solid 3D printer meltable filament;
• and
• stacking and welding multiple sections of the second solid 3D printer meltable filament aligned perpendicular to the length of the meltable 3D printer product filament.