Abstract
Software packages for 3D design and additive manufacturing (AM) technologies, initially known as rapid prototyping (RP) have emerged during the last years, as a cutting edge solutions for custom prototyping. These new tools and technologies lower the design costs, but also allow rapid creation of fully functional components. This paper describes the FDM and 3DP rapid prototyping technologies that were used to create elements and tools in the wood industry field. Total costs of manufacturing related to the fabrication of sample elements and tools are analysed. One of the main recognised issues of wider application of rapid prototyping technologies is their still very high costs related to all production aspects, starting with a lack of available materials, material cost, up to high cost of available commercial equipment, usually focused only on specific solutions and limited range of materials. Generally, AM costs can be divided into the group of fixed costs and variable ones. This paper deals with the optimization of the production costs of fabricated elements in case of small-scale production, and optimization of variable costs (processing and post-processing, costs of enforcement, and material costs).
Highlights
Additive manufacturing involves a series of procedures that enable rapid fabrication of prototypes based on a 3D CAD model
The Center for Information technology (CIT) at the Faculty of Engineering, University of Kragujevac uses two printers based on fused deposition modeling (FDM) technology, as given in Figures 1 and 2:
Up Plus 2 The increasing use of 3D printing has found its place in the wood industry, and it needs the development of new materials that will have properties compatible to those of the wood and will be able to replace conventional ABS plastic used [6,7,8,9]
Summary
Additive manufacturing involves a series of procedures that enable rapid fabrication of prototypes based on a 3D CAD model. The great advantage of this process is the timely detection of defects or quick correction of the errors during the processing of parts. Additive technologies (until recently referred to as RP technology) include forming parts layer by layer. The process that is analyzed in this paper is based on fused deposition modeling (FDM) technology (part of additive technology) [1,2,3,4]
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