Reverse Engineering Convert STL mesh data to a Solid Edge part model and speed up Product Development.

Transcription

1 Reverse Engineering Convert STL mesh data to a Solid Edge part model and speed up Product Development. Realize innovation.

2 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 Page 2

3 Reverse Engineering Our Solution Solid Edge will focus on extracting surfaces from an STL mesh and convert them to a solid model. 3D Scan Convert to Mesh Point Cloud Import and repair mesh Analyze input mesh geometry Convert into surfaces Trim, extend and stitch to create a solid body Modifying geometry Adding details Mesh Import Identify Regions Mesh Repair Surface Extraction Surface Extraction Solid Model Page 3

4 Example Bottle Page 4

5 Example Die Page 5

6 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 Page 6

7 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 Page 7

8 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 Turn ON for 3D Box Delete Mesh Facets 2D Box 3D Box Brush All Delete Mesh Page 8

9 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 Smooth Flat Zoom Remove To Page 9

10 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 B-Surface Sphere Plane Cylinder Page 10

11 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 Eye Palette Dropper Fill Non-Extractable Page 11

12 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 Page 12

13 Working with Surfaces 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 Page 13

14 Working with Surfaces 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 Page 14