3D scanning services make it easy to obtain CAD models and drawings for manufacturing even when no drawings exist. All that is needed is a sample part to scan, and the part can be reproduced. The process of Reverse Engineering enables the creation of a part that is better than the original. The part can also be modified per your instructions to create variations and improvements upon the original design. Depending on the manufacturing method, there are things to consider when creating the 3D model to make sure they are optimized for manufacturing.