Rapid prototyping RP

making the interface between the 3D-CAD system and the rapid prototyping system. For example the CAD data may be converted to the STL (Standard transformation format) file format 

slicing the STL file into thin cross-sectional layers 

The advantages of Rapid Prototyping, particularly for complex forms, include  

Liquid - solid Polymerisation by local UV exposure of a photosensitive resin Photosensitive resins Acrylates, epoxydes shrinkage and deformations model needs supports 

Solid - solid Contours of a layer are cut out from a foil Paper, metals, polymers no supports consumption of base material 

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Although different types of SFF technologies have already been adopted in vastly different areas, it is believed that the revolution is only in its infancy. To date, SFF has been adopted mainly as a rapid prototyping (RP) technology, but it is expected that the next step will be rapid manufacturing (RM) of final products. 

Due to the ever-increasing demand for shorter product development cycles, a new technology known as rapid prototyping (RP) has emerged. RP is the organizational and technical connection of all processes in order to construct a physical prototype. The time required from the date the order is placed to when the prototype is completed can be substantially reduced with the application of RP technology (Figure 20). 

Rapid prototyping (RP) or solid freeform fabrication (SFF) is a relatively recent approach to forming ceramic components. There are various forms of RP techniques, but they are based on a common principle a computer directly controls the shaping process by accessing computer-aided design (CAD) files. We can thus use RP to form a 3D component without the use of a die or a mold. RP techniques are used commercially for fabrication of parts from polymers for design verification and form-and-fit applications these techniques have more recently been applied to forming parts out of ceramics. 

Additive manufacturing (AM) technology has two application levels rapid prototyping (RP) and rapid manufacturing (RM) (Fig. 1). 

Three-dimensional printing 3D printing or 3DP) is a rapid prototyping (RP) technique that was developed in 1992 at the Massachusetts Institute of Technology (MIT) [109]. In contrast to 3D plotting of hot polymer melts, 3DP uses CAD models that can be obtained with a personal computer [110]. 3DP is a layered fabrication process in which a layer of powder is spread onto the powder bed on which the model will be created. Then a print head ejects... 

Fig. 12.27 Preoperative X-rays—a. Judet obturator view left), the stoeolothographic image of the fractured acetabulum middle, left), a rapid prototyping (RP) model of the Ifactured acetabulum middle, right), a postoperative Judet view of the acetabulum right) [34]...

RMS root mean square ROI return on investment RP rapid prototyping RP reinforced plastic RP Reinforced Plastics publication by Elsevier, UK... 

Rapid Prototyping (RP) is an innovative technology developed within the last two decades. It aims to produce prototypes relatively quickly to visual inspection, ergonomic evaluation, analysis of shape and dimension and, as a standard for the production of master tools, to help reduce process time for product development (Choi and Chan, 2004). 

Figure 4.133 shows the application of the generative principle (Rapid Technology) on the production of prototypes (Rapid Prototyping, RP) and products (Rapid... 

For the primary evaluation, the proposed hand is fabricated using Rapid Prototype (RP) machine. The fabrication takes about a day to manufacture and cleaning using ultrasound. A new prosthetic hand (figure 7) is now ready to be integrated with control system. 

Besides, HCMC University of Technology was funded the project KC 05-01 by Ministry of Science and Technology to invest Rapid Prototyping (RP) equipments for industrial and medical applications. 

FIGURE 9.7 Making a rapid prototype (RP) resin model (Courtesy of Grant MacDonald). ... 

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