The advantage to using incremental scaling was the ability to test and make improvements while being more time and resource efficient. The full scale channel mold made the progression from a single set of channels to multiple independent sets. Similar to the small scale, silicone was poured into the positive and channel inserts were pressed into the wet silicone. Each 18in mold was cast directly into a wooden box so that it did not have to be cut or moved. ![]() One set of two, mirror imaged molds was capable of creating both of the full fins. The full scale model used two foam positives, one of each half of a fin, to make plaster negative molds. Each iteration of the manufacturing process was further refined to improve the results and progress toward a functioning set of fins. ![]() ![]() With the manufacturing process established through the iterations of smaller prototypes, full scale fabrication was started.
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