These results suggest that copolymers containing higher amount of soft segments (40 wt%) would need higher voltage due to higher limiting viscosity numbers. obtaining filament of suitable size for FFF, has been slow, as the processability of some polymers can be a limiting factor. The as-received directly from the reactor copolymer filaments were used for 3D printing where filament was extruded continuously and uniformly through the 0.25 mm printer nozzle under constant flow rate. After deposition, the printed tubular patterns (Figure ) showed good binding between subsequent layers (up to 400 layers have been deposited) without significant deformation, warping or delamination.