3D printing Filament is one of the largest concerns determining your running costs. Of course many of the efficient designs are fueled by the extreme cost of filament, but why the extremes?
It seems that there is finally some light in the tunnel. Somehow the good people at Cad-house managed to bring down filament prices by 50% since I last looked!
A step in the right direction, although I still believe that we should work together in finding a cheaper solution. The raw extrusion quality ABS costs only about R6/kg