In this Tinkercad tutorial, we'll learn how to modify an existing design that may not be accessible as a CAD model specific to a software package. We'll review the process so you can import the design and its parts and separate them, then incorporate other designs as components of your own model. We'll be customizing a prosthetic to address cosmetic and minor functional changes. We'll also address scaling issues related to grafting one design onto another. By the end of this Tinkercad training, we'll convert the prosthetic to resemble an Iron Man glove. Software required: Tinkercad.