Multi-stage wash system for vat polymerization-based 3d printed parts

A method, performed by a system for washing off residual resin from objects that are 3D-printed through a vat polymerization process, comprising:

• pumping a first solution of a plurality of solvent solutions from a solvent receptacle to a wash reservoir of the system, wherein the wash reservoir is adapted to enclose a 3D-printed object, by activating a pump of solvent disperser adapted to facilitate a flow of the plurality of solvent solutions between the wash reservoir and the solvent receptacle;
• dispersing the first solutions onto the 3D-printed object by activating an agitator of the solvent disperser adapted to disperse the plurality of solvent solutions onto the 3D-printed object;
• pumping the first solution from the wash reservoir to the solvent receptacle in order to substantially remove the first solution from the wash reservoir;
• pumping a second solution of the plurality of solvent solutions from the solvent receptacle to the wash reservoir;
• and
• dispersing the second solution onto the 3D-printed object.