Want some proof? Just take a look at what people made for our Repairs You Can Print contest. Of course, to do that you need to be able to make an accurate 3D model of the replacement part.

The first attempt didn’t work well, but that is the nice thing about 3D printing — it is easy to ... there are no models or code — and it sounds like [Engineers Grow] plans to make them ...

Until now, these factors were considered unavoidable shortcomings of the 3D printing process ... that are sensitive and capable of transforming mechanical signals into electrical signals.