3D printing using the liquid resin technology allows to provide fine and precise finishes. It can be very useful to make dental models, final prototypes and small runs of pieces.
It consists of giving a 3D drawing a physical format through the contribution of liquid resin (photopolymer). Once the resin is deposited, it is cured instantly with UV light. The resin contribution is layered, which can be 0.016 mm (16 microns) or 0.028 mm (28 microns) thick. According that we have two types of finished:
- High precision finished for technical parts, with a tolerance of ± 0.05 mm.
- Standard precision finished for parts that do not demand high precision finish but of good precision, with a tolerance of ± 0.10 mm.
The materials can be hard, rigid and semi-rigid, transparent, with high thermal resistance, with elongation at the breaking point, rubbers, with properties similar to those of PP, HDPE, PMMA, PC, ABS, HIPS, TPE-S and EPDM rubber.