Biocomposite samples made by FDM thus exhibit poorer mechanical
properties than biocomposites manufactured by extrusion, compression
or injection moulding. Therefore, this novel technology allows the
manufacture of parts having a complex shape, but nevertheless with
moderate mechanical properties. Improvements could be obtained by
developing suitable materials with low initial porosity and high fibre
content. The fibre content actually represents a bottleneck since it
may give rise to a drastic increase in the filament melt viscosity, thus
hindering its use in current FDM apparatus.