This webinar from Capvidia will show you how to use CompareWorks to diagnose the geometry you import into SolidWorks and show where there are differences and/or give you the assurance it is correct. With CompareWorks, you can establish a documented, traceable procedure in your company workflow. If you work with imported geometry and data integrity is a must, you should attend this webinar. View this webinar to learn: • How hidden SolidWorks import errors can corrupt your work in ways you may not discover until it’s too late. • How to kill hidden SolidWorks import errors, before they kill your project schedule. • How to avoid expensive mistakes due to incorrect imported geometry. • Why SolidWorks users need to validate imported data.

1. How Hidden SolidWorks Import Errors
Could Be Costing You a Fortune

2. Before We Start
This webinar will be available afterwards
at designworldonline.com & via email
Q&A at the end of the presentation
Hashtag for this webinar: #DWwebinar

3. “How Hidden SolidWorks Import Errors
Could Be Costing You a Fortune”
PRESENTER
Lyle Fischer
Technical Marketing Director
Capvidia
MODERATOR
Evan Yares
Senior Editor
Design World
CompareWorks

4. Company:
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Founded in 1994
Development of engineering software applications
CAD data translation and CFD services
60+ programmers & engineers (20% PhD)
SolidWorks Gold Partner since 1995
Applications Areas:
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3D CAD data translation,
3D CAD validation,
3D CAD quality assessment
CFD simulations
Capvidia Worldwide

5. Hidden SolidWorks Import Errors?
CAD Data Translation
If you enter the following quote from
William Shakespeare
into a popular online translation tool:
"It is not in the stars to hold our destiny but in ourselves."
Translation
Korean translation
Translated back to English, we get the following
translation:
"It can hold our destiny in the stars, but it does not own."

6. SolidWorks Import Errors
Differences between SolidWorks and other CAD systems:
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Formats
•
Kernels
•
Model tolerance
•
Geometry and Topology
13 surfaces
226 surfaces
226 surfaces
?
226 surfaces

7. Model Tolerance
Known issues:
Different tolerance for MBD solid
definition
System CAD
CATIA V4
CATIA V5
I-DEAS
UGS NX
SolidWorks
Parasolid
ACIS
Tolerance [mm]
0.1 – 0.02
0.001
0.01
0.0254
0.0254
0.0254
0.001
CATIA - Solid
Geometry inconsistencies:
• Overlaps
• Gaps
• Deformations
SolidWorks - Geometry deformation

8. Kernels Differences
Known issues:
UGS NX,
ACIS,
SolidWorks,
Parasolid
CATIA, Pro/E
Shared Entities
Shared Entities
Non-manifold
Geometry inconsistencies:
• Touching surfaces
Manifold

9. Kernels Differences
Known issues:
Closed surfaces. Export from
SolidWorks to CATIA
CATIA
UGS NX,
ACIS,
SolidWorks,
Parasolid
I-DEAS
SolidWorks
CATIA V5
SolidWorks
CATIA

10. Hidden SolidWorks Import Errors
Model deformations
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Visible
Non visible
Surface Fragmentations
Surface Curvature Loss
Surface Tangency Loss (G1/G2)
Entity Definition Change
Model Changes are impossible to trace within SolidWorks
External audit is required

11. CompareWorks Demo – Native ProE

12. How These Errors Can Cost You Money ?

13. Boeing Supplier
Boeing Commercial
Boeing Defense

14. Practical problem
SolidCAM Imported Geometry
Surface Roughness
Finished Part Rejected by Boeing
Original geometry after SW Import is unnoticeably changed, resulting in huge
cusps on the finishing surface

15. Practical problem
Validation fails due to surface fragmentation
It is the same surface where CNC had a problem

16. Cause of the problem
Surface de-fragmentation in data translation
13 surfaces
226 surfaces
Neutral (IGES, STEP)
Authority Model
SolidWorks

17. Influence on the surface roughness
Tool path direction
Tool path direction changed
Surface explosion
No surface explosion
<
Ra
Smooth
Ra
Raw

18. Model Alteration by SolidWorks
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13 surfaces
Import diagnostics (healing)
Feature recognition (rebuilding model)
Manual Re-Mastering (new design)
226 surfaces

19. Model Alteration after Import
SolidWorks Import Diagnosis Tool
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Attempt to Heal All….
After
Before
Are you aware that this happened?
The change is not visible and you are not informed

20. Model change after feature recognition
Feature Recognition
SolidWorks Imported part – BREP solid

21. Model change after feature recognition
Feature Recognition
Is it still the same as the original model?

22. Model change after feature recognition
Feature Recognition
CompareWorks has detected a change by FeatureWorks

23. How does CompareWorks work?
Is the Original Model the same after import to SolidWorks?
?
Original Authority Model
is the point of reference
• Volume?
• Surface Area?
• Center of Mass?
• Geometry?
• Topology?
• Attributes?

24. CompareWorks Process Workflow
Parasolid
Kernel
CompareWorks
External Audit
API
SolidWorks Import
Authority Model
Capvidia
Kernel
Authority/Reference Model
Report

25. CompareWorks Demo - IGES

26. CompareWorks Report
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Documented and Traceable Process
Compliance with Quality Standards – ISO 9000
Boeing D6-51991
Fully Integrated with SolidWorks

27. CompareWorks
Implementation based on Boeing D6-51991 recommendation
D6-51991 Validation criteria CAD translation
CompareWorks

28. Who should use it?
CompareWorks:
• Compares and validates CAD models against user defined criteria
• Identifies and manages CAD model shape changes
Typical application areas:
• Digital process certification of 3D CAD data (e.g. Boeing D6-51991)
• Detection of CAD model changes (data translation, re-mastering, etc)
• Tracking undocumented changes in design revisions
• Detection of changes in CAD assembly structure
Benefits:
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Brings prediction into processes based on the reuse of 3D CAD data
Complies with standards - Boeing D6-51991, DOD MIL 31000, ISO
Documents and validates processes involving 3D CAD data
Easy to implement and use
Easy to integrate with existing company procedures

29. CompareWorks Advantages
Validation of Data Migration to SolidWorks
• CATIA
• CREO-Pro/E,
• Autodesk,
• Siemens NX, …
Compare SolidWorks V1 (Parasolid Kernel) to SolidWorks V6 (CATIA
Kernel)
Eliminate manufacturing errors using SolidWorks
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Comply with standards and quality assurance
Documented and traceable workflows
DOD – Provide documented proof for government
Aerospace - Boeing D6-51991, Northrop Grumman, Vought
Ensure Confidence using SolidWorks to import CAD models
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Digital proof that SolidWorks import of data is correct
Avoid costly mistakes in manufacturing
Detect problems early in the design phase

30. Conclusion
There will be always a differences between CAD systems...
but once you know how to find them
you will be safe

31. CompareWorks Free Trial Offer
Download CompareWorks from our website
for a free time limited trial version
www.capvidia.com

32. Questions
Design World
Evan Yares
eyares@wtwhmedia.com
Twitter: @EvanYares
Capvidia
Lyle Fischer
lyle@capvidia.com
Phone: 507.794.5447

33. How we handle different native CAD Data?
PRO/E
KERNEL
Entity List
Capvidia
Capvidia
Kernel
Kernel
Entity List
CATIA V5
KERNEL
Entity List
PARASOLID
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Based on Capvidia’s Geometry Kernel:
Design to capture data from all CAD systems
Able to Maintain Original Entity Definition for each Kernel

34. ASCO - Independent Third Party Verification
• Known errors are introduced in the CAD model
• Original CAD-model and model with errors are
compared
• All the introduced errors should be detected by
CompareVidia
0.0002 [mm]
Introduced Errors:
Diameter:
+ 0.0002mm
- 0.0002mm
+ 0.001mm
- 0.001mm
+ 0.01mm
+ 0.1mm
Plane:
- 0.0003mm
+ 0.001mm
- 0.1mm
Radius:
+ 0.01mm
Surface:
- 0.001mm
+ 0.01mm
+ 0.1mm
Parallel planes:
0.001mm
0.01mm
Hole position changed:
+ 0.0002mm
+ 0.001mm
+ 0.01mm
Angled plane:
+ 0.1mm
Hole removed
Hole added

35. Thank You
 This webinar will be available at designworldonline.com & email
 Tweet with hashtag #DWwebinar
 Connect with
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