The purpose of this study is to examine the influence of process parameters on the properties of 3D printed thermosetting polymers (resin). Digital light processing (DLP) 3D printing technology was used for manufacturing the specimens. The process print orientation was evaluated since the test pieces were fabricated horizontally (X), 45° angle, and vertically (Z). The accuracy, hardness, and surface roughness properties of printed resin polymers have been studied. Two different colours of the resin material were investigated to inspect the impact of the colour. The tests have been carried out under laboratory conditions. The findings show that the existence of various orientations during the process has revealed anisotropic behaviour for the 3D printed objects, where significant divergence could be observed concerning the surface roughness. At the same time, a slight difference was noticed in terms of accuracy and hardness. The results suggest that the structure of the horizontal print orientation (X) encourages improving (refine) surface roughness.