The invention relates to a filament connector for connecting respective ends (1, 2) of filaments (3, 4) for the additive manufacturing of a three-dimensional object in fused filament fabrication, the filament connector comprising: at least two mold elements (5, 6) which can be put together; anda filament negative mold (8) in which the ends (1, 2) of the filaments (3, 4), which ends have previously been melted in a melting region (24) of the filament connector, can be joined together by the solidification of the melt of the filament materials of the two ends (1, 2). The filament negative mold (8) forms the melting region of the filament connector; within the filament negative mold, the ends (1, 2) of the filaments (3, 4) can be melted by an input of heat and can be joined together by the solidification of the melt of the filament materials of the two ends (1, 2).

The invention relates to a filament connector for connecting respective ends (1, 2) of filaments (3, 4) for the additive manufacturing of a three-dimensional object in fused filament fabrication, the filament connector comprising: at least two mold elements (5, 6) which can be put together; anda filament negative mold (8) in which the ends (1, 2) of the filaments (3, 4), which ends have previously been melted in a melting region (24) of the filament connector, can be joined together by the solidification of the melt of the filament materials of the two ends (1, 2). The filament negative mold (8) forms the melting region of the filament connector; within the filament negative mold, the ends (1, 2) of the filaments (3, 4) can be melted by an input of heat and can be joined together by the solidification of the melt of the filament materials of the two ends (1, 2).

A method for laminating a component by means of a laminating tool with a laminating element, wherein the component has a groove, wherein the component has a first surface and second surface, wherein the first surface and the second surface border on one another in the groove, wherein the method comprises the following steps: masking the first surface with a mask, wherein the mask has a resilient lip, pressing the resilient lip into the groove by means of the laminating tool, wherein the resilient lip is designed, after having being pressed into the groove, to mask within the groove a partial area of exclusively the first surface, laminating the second surface with the laminating element, wherein, due to the lamination, parts of the laminating element cover the mask, removing the parts of the laminating element which cover the mask.