An open mold for producing components made of a moldable material, the mold comprising: a first mold segment made from an additive manufacturing technique, the first mold segment having: a first support defining a support plane underneath; a first molding surface operative to receive the moldable material, said first molding surface being supported by said first support, said first molding surface having a first edge; a first overlapping interface located between said support plane and said first edge at a predetermined distance from said first edge, said first overlapping interface extending behind said first edge; a first interlocking element located in said first overlapping interface; a second mold segment made from an additive manufacturing technique, the second mold segment having: a second support having said support plane underneath; a second molding surface operative to receive the moldable material, said second molding surface being supported by said second support, said second molding surface having a second edge; a second overlapping interface located between said support plane and said second edge at said predetermined distance from said second edge, said second overlapping interface extending beyond said second molding surface; a second interlocking element located in said second overlapping interface, said second interlocking element being compatible with said first interlocking element so as to cooperate to interlock in an interlocking plane said first mold segment with said second mold segment, said predetermined distance being measured in a direction normal to said interlocking plane, wherein said first overlapping interface overlaps said second overlapping interface, said second overlapping interface abutting against said first overlapping interface in a direction normal to said interlocking plane so that said first edge is juxtaposed with said second edge and said first molding surface is juxtaposed with said second molding surface; and wherein the mold further comprises a finishing layer applied on said first molding surface and on said second molding surface. a first mold segment made from an additive manufacturing technique, the first mold segment having: a first support defining a support plane underneath; a first molding surface operative to receive the moldable material, said first molding surface being supported by said first support, said first molding surface having a first edge; a first overlapping interface located between said support plane and said first edge at a predetermined distance from said first edge, said first overlapping interface extending behind said first edge; a first interlocking element located in said first overlapping interface; a first support defining a support plane underneath; a first molding surface operative to receive the moldable material, said first molding surface being supported by said first support, said first molding surface having a first edge; a first overlapping interface located between said support plane and said first edge at a predetermined distance from said first edge, said first overlapping interface extending behind said first edge; a first interlocking element located in said first overlapping interface; a second mold segment made from an additive manufacturing technique, the second mold segment having: a second support having said support plane underneath; a second molding surface operative to receive the moldable material, said second molding surface being supported by said second support, said second molding surface having a second edge; a second overlapping interface located between said support plane and said second edge at said predetermined distance from said second edge, said second overlapping interface extending beyond said second molding surface; a second interlocking element located in said second overlapping interface, said second interlocking element being compatible with said first interlocking element so as to cooperate to interlock in an interlocking plane said first mold segment with said second mold segment, said predetermined distance being measured in a direction normal to said interlocking plane, a second support having said support plane underneath; a second molding surface operative to receive the moldable material, said second molding surface being supported by said second support, said second molding surface having a second edge; a second overlapping interface located between said support plane and said second edge at said predetermined distance from said second edge, said second overlapping interface extending beyond said second molding surface; a second interlocking element located in said second overlapping interface, said second interlocking element being compatible with said first interlocking element so as to cooperate to interlock in an interlocking plane said first mold segment with said second mold segment, said predetermined distance being measured in a direction normal to said interlocking plane, wherein said first overlapping interface overlaps said second overlapping interface, said second overlapping interface abutting against said first overlapping interface in a direction normal to said interlocking plane so that said first edge is juxtaposed with said second edge and said first molding surface is juxtaposed with said second molding surface; and wherein the mold further comprises a finishing layer applied on said first molding surface and on said second molding surface.