Layer-by-layer manufacture of parts from liquid photopolymerisable compositions by XeCI laser radiation

Layer-by-layer manufacture of parts from liquid oligomers (OKM-2 and TGM-3) was achieved with the aid of XeCl excimer laser radiation (λ = 308 nm). The method of projection printing was used in the manufacture of parts up to 50 cm³ in volume. The energy expenditure in the form of laser radiation did not exceed 1–2 J cm^-3 (less than 200 J cm^-3 if allowance was made for the laser efficiency) in the layer-by-layer manufacture of parts whose thickness was h = 100–200 μm. A machine for laser stereolithography based on an XeCl excimer laser is considered and its productivity is estimated.