The thesis is focused on the production of a 100% bio-based composite, obtained by reinforcing a matrix consisting of a thermosetting resin, poly-furfuryl alcohol (PFA), with hemp micro-fibrillated cellulose (MFC). The material is used for the production of a three-dimensional final object by 3D printing process. Cellulose micro-fibrils are crystalline filaments (diameter of 10-100 nm and length of the order of µm) contained in vegetable fibers with excellent mechanical properties; the common extraction methods (fibrillation) however require a significant amount e of energy and are followed by several steps, so that the production of MFC is not yet affirmed on the industrial scale.