How Hidden SolidWorks Import Errors Could Be Costing You a Fortune

How Hidden SolidWorks Import Errors Could Be Costing You a Fortune

This webinar will be available afterwards

at designworldonline.com & via email

Q&A at the end of the presentation

Hashtag for this webinar: #DWwebinar

Before We Start

“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

Company:

• 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:

• 3D CAD data translation, • 3D CAD validation, • 3D CAD quality assessment • CFD simulations

Capvidia Worldwide

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."

Translated back to English, we get the following translation:

"It can hold our destiny in the stars, but it does not own."

Korean translation

Hidden SolidWorks Import Errors?

Translation

CAD Data Translation

SolidWorks Import Errors

Differences between SolidWorks and other CAD systems:

• Formats • Kernels • Model tolerance • Geometry and Topology

13 surfaces 226 surfaces 226 surfaces 226 surfaces

?

Model Tolerance

CATIA - Solid

SolidWorks - Geometry deformation

System CAD Tolerance [mm]

CATIA V4 0.1 – 0.02

CATIA V5 0.001

I-DEAS 0.01

UGS NX 0.0254

SolidWorks 0.0254

Parasolid 0.0254

ACIS 0.001

Known issues: Different tolerance for MBD solid definition

Geometry inconsistencies: • Overlaps • Gaps • Deformations

Kernels Differences

Non-manifold Manifold

UGS NX, ACIS,

SolidWorks, Parasolid

Shared Entities

Known issues: Shared Entities

Geometry inconsistencies: • Touching surfaces

CATIA, Pro/E

Kernels Differences

I-DEAS CATIA

CATIA V5 SolidWorks

CATIA

SolidWorks

Known issues: Closed surfaces. Export from SolidWorks to CATIA

UGS NX, ACIS,

SolidWorks, Parasolid

Model deformations • 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

Hidden SolidWorks Import Errors

CompareWorks Demo – Native ProE

How These Errors Can Cost You Money ?

Boeing Supplier

Boeing Commercial Boeing Defense

Practical problem

Original geometry after SW Import is unnoticeably changed, resulting in huge cusps on the finishing surface

SolidCAM Imported Geometry

Finished Part Rejected by Boeing Surface Roughness

Validation fails due to surface fragmentation

It is the same surface where CNC had a problem

Practical problem

Authority Model

Neutral (IGES, STEP)

226 surfaces 13 surfaces

Surface de-fragmentation in data translation

SolidWorks

Cause of the problem

Ra Ra

No surface explosion Surface explosion

Influence on the surface roughness

<

Smooth Raw

Tool path direction Tool path direction changed

Model Alteration by SolidWorks

• Import diagnostics (healing) • Feature recognition (rebuilding model) • Manual Re-Mastering (new design)

13 surfaces 226 surfaces

Model Alteration after Import

Before

SolidWorks Import Diagnosis Tool • Attempt to Heal All….

After

Are you aware that this happened?

The change is not visible and you are not informed

Feature Recognition SolidWorks Imported part – BREP solid

Model change after feature recognition

Is it still the same as the original model?

Feature Recognition

Model change after feature recognition

CompareWorks has detected a change by FeatureWorks

Feature Recognition

Model change after feature recognition

• Volume? • Surface Area? • Center of Mass? • Geometry? • Topology? • Attributes?

? Original Authority Model is the point of reference

How does CompareWorks work?

Is the Original Model the same after import to SolidWorks?

CompareWorks External Audit

Authority Model

CompareWorks Process Workflow

SolidWorks Import

Parasolid Kernel

Authority/Reference Model

Capvidia Kernel

Report

API

CompareWorks Demo - IGES

CompareWorks Report

• Documented and Traceable Process • Compliance with Quality Standards – ISO 9000 • Boeing D6-51991 • Fully Integrated with SolidWorks

D6-51991 Validation criteria CAD translation

Implementation based on Boeing D6-51991 recommendation

CompareWorks

CompareWorks

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: • 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

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

• 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 • Digital proof that SolidWorks import of data is correct

• Avoid costly mistakes in manufacturing • Detect problems early in the design phase

CompareWorks Advantages

Conclusion

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

you will be safe

Download CompareWorks from our website for a free time limited trial version

www.capvidia.com

CompareWorks Free Trial Offer

Questions

Design World Evan Yares [email protected] Twitter: @EvanYares

Capvidia Lyle Fischer [email protected] Phone: 507.794.5447

Entity List

Entity List

Entity List

Capvidia

Kernel

PRO/E KERNEL

CATIA V5 KERNEL

PARASOLID

Capvidia

Kernel

How we handle different native CAD Data?

• Based on Capvidia’s Geometry Kernel: • Design to capture data from all CAD systems • Able to Maintain Original Entity Definition for each Kernel

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

• 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

ASCO - Independent Third Party Verification

0.0002 [mm]

Thank You

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