Process for producing an article comprising the steps of: I) providing a layer on a substrate, wherein the layer contains a meltable polymer; II) energizing a selected portion of the layer provided in step I) corresponding to a first selected cross section of the article so that the layer in the selected portion is at least partially melted and at least one at least partially melted volume (400, 401) is obtained; III) contacting the at least one volume (400, 401) obtained in step II) with a carrier so that the at least one volume (400, 401) is joined to the carrier; IV) removing the carrier including the at least one volume (400, 401) joined to the carrier from the substrate; V) providing a further layer on the substrate or on a further substrate, wherein the layer contains a meltable polymer; VI) energizing a selected portion of the layer provided in step V) corresponding to a further selected cross section of the article so that the layer in the selected portion is at least partially melted and at least one at least partially melted volume (402, 403) is obtained; VII) contacting the at least one volume (402, 403) obtained in step VI) with at least one of the volumes (400, 401) previously joined to the carrier so that the volume (402, 403) obtained in step VI) is joined to at least one of the volumes (400, 401) previously joined to the carrier; VIII) removing the carrier including the volumes (400, 401, 402, 403) joined to the carrier from the substrate; IX) repeating steps V) to VIII) until the article is formed, characterized in that the contacting in step III) and/or step VII) is performed such that it comprises performing a relative movement of the carrier toward the substrate, monitoring the contact pressure between the carrier and the substrate and/or between the carrier and the surface of the layer (200, 201) and interrupting the relative movement upon exceedance of a predetermined contact pressure. I) providing a layer on a substrate, wherein the layer contains a meltable polymer; II) energizing a selected portion of the layer provided in step I) corresponding to a first selected cross section of the article so that the layer in the selected portion is at least partially melted and at least one at least partially melted volume (400, 401) is obtained; III) contacting the at least one volume (400, 401) obtained in step II) with a carrier so that the at least one volume (400, 401) is joined to the carrier; IV) removing the carrier including the at least one volume (400, 401) joined to the carrier from the substrate; V) providing a further layer on the substrate or on a further substrate, wherein the layer contains a meltable polymer; VI) energizing a selected portion of the layer provided in step V) corresponding to a further selected cross section of the article so that the layer in the selected portion is at least partially melted and at least one at least partially melted volume (402, 403) is obtained; VII) contacting the at least one volume (402, 403) obtained in step VI) with at least one of the volumes (400, 401) previously joined to the carrier so that the volume (402, 403) obtained in step VI) is joined to at least one of the volumes (400, 401) previously joined to the carrier; VIII) removing the carrier including the volumes (400, 401, 402, 403) joined to the carrier from the substrate; IX) repeating steps V) to VIII) until the article is formed, characterized in that the contacting in step III) and/or step VII) is performed such that it comprises performing a relative movement of the carrier toward the substrate, monitoring the contact pressure between the carrier and the substrate and/or between the carrier and the surface of the layer (200, 201) and interrupting the relative movement upon exceedance of a predetermined contact pressure.