3D printing is well established in the model field.
The plastic kit company I work with does first round prototypes via 3D printer before any metal molds are cut. Saves lots of time and money.
There are a number of plastic kit companies selling parts and complete kits that are 3D printed.
It's now a part of many hobbies and will only grow in many ways....from prototyping to limited runs of models and parts.
