Biomedical Engineering Reference
In-Depth Information
FIGURE 4.1
Rapid prototyping scheme: CAD/CAM SFF.
The fi nal phase can be described as a cleaning and polishing phase, where the waxes or fi llers
are melted or dissolved away. These three steps usually vary for each method and will be illustrated
individually for the description of the tissue engineering RP application.
As illustrated in Figure 4.2, several types of RP methods are available for tissue engineering,
and all but one of them have been adapted from existing manufacturing technologies. Almost all
RP methods are based on PS3D except those constructs that are poured into 3-D sacrifi cial molds,
which are then destroyed during postprocessing. In this case, the sacrifi cial mold is inevitably man-
ufactured through PS3D methods.
