[Matt and Kaitlin Hova] have created The Hovalin, an open source 3D-printed violin ... so [The Hovas] added two carbon fiber truss rods. A handful of other components such as tuners, and of ...

It looks like a lot of work and, of course, the 3D printer is really only making the mold — this same process would be true of any carbon fiber process where you had a mold or something to wrap.

3D printer manufacturer MarkForged, known for its innovative, super strong, carbon fiber 3D printing capability ... For example, LulzBot, a leading open source hardware 3D printer manufacturer ...

But Marvel Labs doesn’t just revitalize waste materials, it captures carbon in the process ... material because the 3D printing machines are located close to the source of the raw material.