performance. The results shown in this paper illus-
trate aspects related with the application of SL, SLS,
FDM and PolyJet, as potential RPT techniques to the
production of the moulding blocks.
A benchmarking study on potential layer additive
manufacturing technologies was developed for the
selection of the best option for the moulding blocks.
A major issue on the use of the selected techniques
is the dimensional deviations and the finishing in the
interior of the part (stair-step effect).
Selective laser sintering, SLS, is seen as the ade-
quate Rapid Prototyping technique for the production
of masters with large dimensions.
About the simulation results, it can be stated that
the greater deformations occur in the castles regions
of the part and consequently ...