Parametric CAD & 3D Modeling
Precision parametric CAD services — from concept modeling and legacy drawing conversion to simulation-ready geometry preparation.
What this solution covers
Pain points we address
Legacy products exist only as 2D drawings or physical samples with no digital CAD model
CAD models from design teams contain features that cause meshing failures in FEA/CFD
No parametric design intent — geometry changes require manual rebuild rather than parameter updates
Multi-CAD environments create translation errors when importing STEP/IGES files
What we solve
Full parametric 3D modeling from 2D drawings, sketches, or reverse-engineered scan data
Geometry cleanup and defeaturing for simulation-ready mesh generation
Mid-surface extraction from solid bodies for shell-element FEA modeling
Design table-driven configurations for parametric variant generation
How we approach it
- 1
Requirements review: understand downstream use case (manufacturing drawing, FEA prep, CFD domain, or visualization)
- 2
Modeling strategy: define feature tree structure, datum planes, and design intent for parametric flexibility
- 3
Modeling execution: build fully constrained SolidWorks parts and assemblies following best-practice feature sequencing
- 4
Simulation preparation: defeature, extract mid-surfaces, create named selections, and export in target format (Parasolid, STEP, native .sldprt)
- 5
Quality check: verify model integrity with SolidWorks Geometry Analysis and confirm mesh compatibility with target solver
Deliverables
Native SolidWorks part (.sldprt) and assembly (.sldasm) files with full parametric history
GD&T-compliant 2D manufacturing drawings (.slddrw) where required
Defeatured and mid-surfaced geometry ready for FEA import
Fluid volume extraction for CFD domain definition
Design table spreadsheet for parametric configuration management
Expected outcomes
Simulation-ready geometry delivered in hours rather than days of manual cleanup
Parametric models enabling rapid design variant exploration without rebuild
Digital archival of legacy products as fully associative 3D CAD with manufacturing drawings
Consistent CAD quality standard across multi-engineer project teams
Why Shirsh
CAD quality determines simulation quality. Our modelers are trained not just in SolidWorks operations, but in the downstream requirements of FEA meshing and CFD domain extraction. Every model we deliver is built with simulation intent — clean topology, named selections, and appropriate defeaturing — eliminating the geometry cleanup bottleneck that plagues most analysis projects.
Want to learn this?
We also offer ANSYS & SolidWorks training courses.
At a glance
Discuss your project with our engineers
Tell us about your simulation, validation or design challenge.