2011 - 3DRevEng
There are 3 process output file types for scan data, to determine which one will suit your needs depends on what you plan on doins with the CAD data.
Shrinkwrap Surface Model
Hybrid Surface Moldel
Parametric Model
* Captures as-built state
* Includes manufacturing defects
* Patch-work of small surfaces
* Non Class A surface finish
* Includes manufacturing defects
* Patch-work of small surfaces
* Non Class A surface finish
Refers to the way in which 3D scanning software like Geomagic, RapidForm, and Paraform fit mathematical IGES surfaces to a "physical" scan. Similar to how plastic shrinkwrap "shrinks" down onto a part being "wrapped".
An IGES or STEP surface that usually combines auto-surfaced features with typical 3D modeling operations. Hybrid models are "dumb" because the data contains no parametric history of the model; it is simply a surface that cannot be intelligently edited. Such models have areas that are not ideally mathematical in nature, and instead are composed of NURBS surface estimates of the scan data. Go To Top
A data set that retains the history of how it was designed, so that modifications update all downstream features. Exchange of such models is supported by IGES. SolidWorks is a software program that is popular for creating and modifying parametric models.
* Ideal data converted from scan data
* Can ignore or incorporate manufacturing defects
* "Dumb" IGES surfaces or solid
* Modifications require re-trimming
* Can be Class A surfaced
* Can ignore or incorporate manufacturing defects
* "Dumb" IGES surfaces or solid
* Modifications require re-trimming
* Can be Class A surfaced
* Ideal data converted from scan data
* Can ignore or incorporate manufacturing defects
* Parametric solid model
* Modify model parametrically
* Can be Class A surfaced
* Can ignore or incorporate manufacturing defects
* Parametric solid model
* Modify model parametrically
* Can be Class A surfaced
Characteristics
Characteristics
Characteristics
1. The STL file is created from the scanner and is a series of triangles. It can be CNC machined from but not edited.
2. This surface is autogenerated using the by the computer software and attempts to match the surface as specified.
3. This surface is engineered using software and can be exported to any cad program. The IGES is not parametric!
CREATE EXACT SURFACES
Exact surface modeling is the preferred
method for creating highly accurate 3D
replicas of an existing object for analysis,
scientific and medical applications.
Exact surface modeling is the preferred
method for creating highly accurate 3D
replicas of an existing object for analysis,
scientific and medical applications.
SCAN AND EDIT
Integrated with major 3D scanning
platforms, Geomagic Studio provides
powerful point cloud processing tools to
help you create polygon meshes.
Integrated with major 3D scanning
platforms, Geomagic Studio provides
powerful point cloud processing tools to
help you create polygon meshes.
CREATE PARAMETRIC SURFACES
Create optimized, parametric CAD
models, complete with model trees
that are editable within widely used
mechanical CAD packages.
Create optimized, parametric CAD
models, complete with model trees
that are editable within widely used
mechanical CAD packages.
GENERATE POLYGONS
Interactive polygonal editing tools
provide the control and flexibility to
sculpt and reshape models early in the
3D modeling process.
Interactive polygonal editing tools
provide the control and flexibility to
sculpt and reshape models early in the
3D modeling process.