The purpose of this article is to present manufacturing methodologies through reverse engineering of socket design for a transtibial amputee, bearing in mind that it is a customized product. In addition, the traditional manufacturing process will be arrived at in comparison with the model proposed. In this sense, this document proposes a new practical approach to modeling the contact interface, i.e. the prosthetic socket and the skin, and thus making a more functional prosthesis by helping people to visibly improve their quality of life.