An overview of rapid prototyping technologies using subtractive, additive and formative processes

Ovaj rad opisuje metodologiju za primenu brze izrade prototipova primenom subtraktivnih, aditivnih i formativnih tehnologija na osnovu STL fajlova. Tehnologije brze izrade prototipova uključuju digitalni lanac informacija CAD/CAM /CNC, do nivoa koji omogućava uspešnu realizaciju fizičkih modela koristeći novu tehnologiju, dodavanjem, oduzimanjem i oblikovanjem materijala. U radu su razmatrane uobičajene tehnologije brze izrade prototipova, za koje je predložena generalizovana metodologija za njihovu primenu. Pokazane su i mogućnosti za verifikaciju programa pre same izrade modela. Metodologija je verifikovana na konkretnim primerima izrade izabranih delova koristeći tehnologije oduzimanja, dodavanja materijala sloj po sloj, i izrade kalupa (dodavanjem materijala) za livenje modela od silikona.This paper describes methodology for application of a rapid prototyping using subtractive, additive and formative technology based on STL files. Rapid prototyping technology includes using of a digital information chain CAD/CAM/CNC to a level which allows the successful realization of the physical models based on new technologies by adding, subtracting and molding material. The paper discusses about the usual technologies for rapid prototyping, for which a generalized methodology for their application has been proposed. The possibilities for program verification prior to the realization of the model were also shown. The methodology is verified on real examples of making selected parts. Used technologies are subtracting and adding material layers, layer by layer, and mold making (by adding material) for molding the silicone model