reverse engineering · separate install creates a new reverse engineering tab in solid edge part...

Reverse EngineeringConvert STL mesh data to a Solid Edge part model and speed up

Product Development.

Realize innovation.Restricted © Siemens AG 2016

Restricted © Siemens AG 2016

XX.XX.20XX Siemens PLM Software

#SEU16

Reverse Engineering

Why Reverse Engineering?

Convert an existing physical part to a virtual 3D model

and then alter it to improve the design

• Faster new product development

• Continuous quality improvement

• Customization

• Cut down production cost

Why now?

• Affordable Hardware

• Smaller and Portable

• Easy to use



#SEU16

Reverse Engineering

Our Solution

Solid Edge will focus on extracting surfaces from an

STL mesh and convert them to a solid model.

• Import and repair mesh

• Analyze input mesh geometry

• Convert into surfaces

• Trim, extend and stitch to create a solid body

• Modifying geometry

• Adding details

Convert to Mesh

Mesh Repair

Identify Regions

Surface Extraction

Solid Model

3D Scan

Surface Extraction

Mesh Import

Point Cloud



#SEU16

Bottle

Example



#SEU16

Die

Example



#SEU16

Reverse Engineering

Tools

Separate install creates a new Reverse Engineering

tab in Solid Edge Part document

• Import – STL mesh data

• Clean-up Mesh by deleting unwanted or intricate

mesh and filling gaps to create a water-tight mesh

• Identify Regions as planes, cylinders, spheres, B-

spline surfaces

• Extract Surfaces from regions

• Modify – surfaces using trim/extend operations

• Stitch – to create a design body



#SEU16

Import

Import STL mesh data

Import command opens STL file in a Part or

Sheetmetal document

• Import STL file in active document

• Choose file units –

• inches

• mm

• meters

• Oriented to Base coordinate system

• Supports Multiple STL files

• Import scanned data from different files



#SEU16

Cleanup Mesh

Delete Mesh

Unwanted mesh with defects or intricate mesh

to make extraction of surfaces easier

• Noise during scanning

• Intricate details

• Symmetric component – delete half mesh

• Delete Mesh Facets

• 2D Box

• 3D Box

• Brush

• All

• Delete Mesh

Turn ON for 3D Box



#SEU16

Working with Mesh

Clean-up Mesh

Repair defects such as gaps and holes in the imported

mesh using the Fill Holes command

• Identifies holes and gaps automatically

• Fill Holes list

• Indicates boundaries

• Zoom to

• Remove

• Manual Selection

• Select / Fence Select / Select All / Deselect All

• Fill Types –

• Smooth – Tangent continuous

• Flat – Edge continuity

Zoom ToRemove

Smooth Flat



#SEU16

Working with Mesh

Automatic Region Identification

Analyzes geometry and automatically detects Planes,

Cylinders, Spheres and B-spline Surface geometry

• Creates Regions – planes, cylinders, spheres and b-

spline surfaces

• Each type is applied a unique color

• Yellow planes

• Cyan cylinders

• Red spheres

• Magenta b-splines

Sphere

Cylinder

PlaneB-Surface



#SEU16

FillPalette

Working with Mesh

Manual Region Creation

Geometry like Chamfer, Round may be avoided and

created on a model at a later stage. These can be

painted manually

• Paint tools

• Brush

• Fill

• Color Selection

• Eyedropper

• Color Palette

• Paint as Non-extractable

• Regions are created for each color

• Adjacent regions with same color merge

Brush

Non-Extractable

Eye Dropper



#SEU16

Working with Surfaces

Extract Surfaces

Reads the color applied to a region and extracts a

surfaces

• Creates surfaces

• Planes for Yellow faces

• Cylinders for Cyan faces

• Spheres for Red faces

• B-Surfaces for Magenta face

• Extract

• All

• Selected

• Delete surfaces



#SEU16


Fit Surfaces

Fit a Plane, Cylinder, Sphere or B-Spline surface in

the selected region

• Regions not extracted

• Regions painted other than Yellow, Cyan, Red or

Magenta can be used to fit surfaces

• Delete an extracted surface

• Fit surface



#SEU16


Modify Surface Tools

After faces are extracted use modify surfaces

commands to extend, trim and stitch surfaces

• Intersect

• Trim

• Extend

• Stitch

• Convert to Design Body

reverse engineering · separate install creates a new reverse engineering tab in solid edge part...

Documents