A mold assembly for vacuum forming a wind turbine component , the mold assembly comprising: a plurality of support plates ; and, a plurality of mold plates removably coupled to the plurality of support plates , the plurality of mold plates being stacked and removably coupled together to form a mold configured for forming the component , each mold plate including a first surface partially defining a top surface of the mold , a second surface spaced apart from the first surface , a third surface extending from the first surface to the second surface , and a fourth surface spaced apart from the third surface and extending from the first surface to the second surface , wherein one or more of the plurality of mold plates define at least one of: a plurality of grooves in the corresponding third surfaces extending from the corresponding first surfaces to the corresponding second surfaces , the third surfaces of one or more of the mold plates being in contact with the fourth surfaces of the adjacent mold plates such that each groove forms a vacuum passage within the mold ; or a plurality of grooves in the corresponding fourth surfaces extending from the corresponding first surfaces to the corresponding second surfaces , the fourth surfaces of one or more of the mold plates being in contact with the third surfaces of the adjacent mold plates such that each groove forms a vacuum passage within the mold . a plurality of support plates ; and, a plurality of mold plates removably coupled to the plurality of support plates , the plurality of mold plates being stacked and removably coupled together to form a mold configured for forming the component , each mold plate including a first surface partially defining a top surface of the mold , a second surface spaced apart from the first surface , a third surface extending from the first surface to the second surface , and a fourth surface spaced apart from the third surface and extending from the first surface to the second surface , wherein one or more of the plurality of mold plates define at least one of: a plurality of grooves in the corresponding third surfaces extending from the corresponding first surfaces to the corresponding second surfaces , the third surfaces of one or more of the mold plates being in contact with the fourth surfaces of the adjacent mold plates such that each groove forms a vacuum passage within the mold ; or a plurality of grooves in the corresponding fourth surfaces extending from the corresponding first surfaces to the corresponding second surfaces , the fourth surfaces of one or more of the mold plates being in contact with the third surfaces of the adjacent mold plates such that each groove forms a vacuum passage within the mold . a plurality of grooves in the corresponding third surfaces extending from the corresponding first surfaces to the corresponding second surfaces , the third surfaces of one or more of the mold plates being in contact with the fourth surfaces of the adjacent mold plates such that each groove forms a vacuum passage within the mold ; or a plurality of grooves in the corresponding fourth surfaces extending from the corresponding first surfaces to the corresponding second surfaces , the fourth surfaces of one or more of the mold plates being in contact with the third surfaces of the adjacent mold plates such that each groove forms a vacuum passage within the mold . <EOS>