|
Please include the following information in your
request:
1. Description of your project and how you
will use
the file after you receive it.
Will the file be simply a visual reference, used for cutting
tooling, for making an SLS or SLA? Will you need to edit individual
features in the geometry or offset from the geometry?
2. Level of output you will need.
 A. POINT CLOUD
Scanned point clouds are typically used in editing
and surfacing software such as Geomagic, Polyworks, Rapidform or Rhino. Point
clouds can also be imported into Pro-E as a reference for modeling.
This file retains its raw 3D point position accuracy from the scan.
File extensions:
.asc .txt .xyz
B. POLYGONAL MODEL
Point cloud edited and converted to a polygonal
model (points now connected by polygons). For use in SLS, SLA part production
and some machining applications. A very heavy file that cannot be handled by
many systems.
This file is the highest level accuracy surface model. It will retain detail
down to human skin texture.
File extensions: .stl
C. NON-PARAMETRIC SURFACE
Surfaced non-parametric NURBS file. Best described
as carefully “laying” a fish-net over every feature on the object to accurately
represent surface variation. This file cannot be thickened or off-set from.
Individual features cannot be changed in this type of model because there are no
parametric features such as radii, circles, planes, etc for the software to
calculate from.
Useful in a non-parametric application such as an organic object. Also useful
for visual and dimensional reference.
File extensions: .igs
D. NATIVE PARAMETRIC SOLID
A scan does not produce a parametric file that is
simply converted into SolidWorks, Pro-E, or any other CAD platform. The part
geometry has to be generated as if it were designed from scratch. For parametric
modeling, the scan is used only as a reference and for quality verification.
Curves, radii, planes, and arcs are created in a CAD environment for every
individual feature on the part. You can offset and edit this file because it has
a mathematical, parametric foundation from which to develop a shape from.
Fully functional native parametric in SolidWorks, Pro-E,
Inventor, or Keycreator.
File extensions:
.sldprt .slddrw .sldasm .prt .drw
.asm .ipt .idw .ism .ckd .ckt .prt .ptn .x_t .x_b |
|
