Hollow cavities created for components do not have an optically clear finish (Figure 17b) and it is not practical to sand
or buff these small cavities during the print process. However,we discovered a unique technique to improve the surface
quality of cavities by depositing additional uniform layers of material. This material is deposited from above and
falls into the cavity in a liquid state to smooth its surface. Figure 17c shows the improved surface finish achieved when
ten additional layers of material are deposited.