How to match plastic molds? I think what you are asking is the final research and matching of the mold. Research and matching is the most common process of plastic mold processing, that is, assembling the assembled molds together. Because the precision of plastic mold is matching processing and various parting surfaces are polished by hand, special attention should be paid not to close the damaged mold at once. Just grind all parting surfaces together (the gap is less than 0.02). There will be too many details. These are the basic processes and requirements. I hope so.