Geomagic Design X: Reverse engineering of Organic forms. 3D scan processing

For everyone who wants to start learning reverse engineering we prepared our free tutorials “Reverse engineering for beginners”. This manual will reveal the principles of reverse engineering of organic forms in Geomagic Design X.

The guide will help you answer the questions:

• How to perform reverse engineering in Geomagic Design X?

• Automatic and Guided surface creation: which method is the best?

• How to get a solid body from mesh in Geomagic Design X?

• How to import 3D scan data into Geomagic Design X for reverse engineering?

You will find the information about:

• Automatic surface creation (Auto Surface)

• NURBS surface generation

• Guided surface creation: Extract Contour Curves, Construct Patch Network, Shuffle Patch Groups, Fit Surface Patches   

• Surface editing tools: Trim And Merge, Reverse Normal

• Surface modeling in Geomagic Design X

Automatic surface creation. Auto Surface

1. Let's choose the 'Auto Surface' tool

2. Before NURBS surface generation, we can see a network of curves that define boundaries of patches



3. The network nodes can be moved across the mesh surface



4. The Auto Surface may not replicate the mesh curvature precisely enough and sharp corners could be smoothed

Guided creation. Patch Network & Fit surface patch

1. Let's launch 'Patch Network' and then click 'Extract Contour Curves'



2. We correct areas of changing curvature, that were defined automatically,  with the brush adding or removing extra areas



3. Then we check and edit the curves moving their nodes



4. When the contour curves are ready, we launch 'Construct Patch Network' to generate a network of curves



5. 'Shuffle Patch Groups' helps to change the organization of these curves inside a selected area in a specified manner




6. Then we click 'Fit Surface Patches' to create a surface based on the network



7. Now we can inspect the deviation between the model and the mesh




8. Such a surface reflects mesh features more accurately than Auto Surface



9. Let's mirror the surface in respect to a symmetry plane



10. 'Trim And Merge' option allows to trim the surface with the symmetry plane and merge the copies in the same operation



11. Next, we create a new sketch and construct two lines for trimming surfaces




12. These surfaces should have closed-loop intersection boundaries with the main one



13. We use 'Reverse Normal' to flip a face with a wrong normal direction



14. Let's trim unwanted parts of each surface
  

15. A closed space inside the surface body was filled with solid 

Result

Watch the full video manual: