| CPC B29C 33/3842 (2013.01) [B29C 33/42 (2013.01); B33Y 80/00 (2014.12); B29K 2075/00 (2013.01); B29K 2869/00 (2013.01)] | 7 Claims |

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1. A method, comprising:
manufacturing a mold body having a cavity surface; and
creating a permanent hydrophobic structure on the cavity surface, wherein the mold body and the hydrophobic structure are 3D printed, wherein the mold body or the hydrophobic structure are made of polycarbonate, wherein the hydrophobic structure comprises a plurality of regularly shaped protrusions, and wherein each protrusion is spaced from an adjacent protrusion at a distance of 0 mm to 1.5 mm.
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