Low cost alternative material applied to a threedimensional printing tecnique 3dprinter to obtain biomodels

Abstract

Biomodels in various materials have been developed to aid the planning of complex surgeries, such as skull reconstruction. Obtaining these biomodels it is based on the execution of three basic steps: acquisition of two-dimensional images, treatment of these images via modeling software and biomodel manufacture by additive manufacturing. A set of technologies provided the physical reproduction of a complex model in various types of materials, automatically, from a virtual model using three-dimensional printing. Very similar to a commercial printer inkjet, the printing of biomodels is through successive layers of bonded powder by a liquid called binder. Consumables used in this technique have high market value, preventing the use of threedimensional printing technique more often. This work aimed to the preparation of a low cost alternative material based on plaster, in order to compare strength and surface quality with commercial materials widely accepted in the national market. The discussions and conclusions deal with comparative analysis of materials by means of mechanical strength, grain size and morphology of the powder, surface quality and the use of cyanoacrylate resin as post-processing, since the latter is common practice for most manufactured objects.