On the technological and dimensional considerations for generating parts by 3D-printed with light processing focus

The paper takes into account the specific process of generation and parameters setting of 3D printing process DLP (Digital Light Processing) which have an influence on the characteristics of planar surface of the parts. In the first part of the paper the study is conduct to determinate the parameters which can influence the process of implementation of flat surfaces pieces with 3D DLP process printing. In this part there is and a comparison with the method of generating the marker method 3D printing FDM (Fuse Deposit Modelling). It has chosen this solution because on the one hand the cost of parts are medium, as well as generating principle is relatively simple in terms of technological point of view, but as well as the accuracy and quality of surface generation made with this printing is much better than that provided by the process of asking for a comparison is made. Analysis of the surface will be done so about using an optical microscope with a magnification of 0-500 times, and by means of an electronic measure for dimensional parts as well as for spatial areas of the deviations generated. In it also make references to the methodology of generating flat surfaces and to influence the way their generation characteristics of the parts generated by the 3D printing process type DLP. It should be pointed out that from the perspective of the characteristics of the surfaces generated in literature there are few references in this direction being those areas indicated in the area, as well as acting, although the products have engineering applications.