Prototyping of structural parts through aluminium and carbon sintering

This construction method does not require supports for the item being processed, its protruding or overhanging parts being sustained by the non-sintered powder.  The finished item must be extracted and the non-sintered powder removed.  No problems arise during the removal of the powder left in the internal cavities.
Pieces in polymer material do not usually require after-treatment, while metal and ceramic items undergo heat treatment which increases their mechanical characteristics.  The finishing of the piece, given its design characteristics, cannot be carried out with abrasive cloth;  wax infiltration operations are therefore carried out or, more simply, painting with epoxy resin to eliminate the porosity of the surface.