Surface CAD modeling

Get Every Surface Right Before Tooling Begins

A surface that fails design review pushes back tooling. We build precise Class-A surface models and check every curve before release, so designs pass review.

See What Surface Rework Costs You
  • Class-A qualitySmooth, continuous surfaces.
  • Accurate scan to CADChecked against the original.
  • Tooling-ready modelsWatertight and machinable.
  • Checked before releaseSenior review on every model.
  • Smooth Class-A fuselage surfaces on the nose of a commercial aircraftAerospace Class-A surfaces
  • Blended-wing concept aircraft with three top-mounted enginesAerospace surfaces
  • Silver electric sedan with smooth, flowing Class-A body surfacesAutomotive Class-A surfaces
  • Sculpted personal watercraft hull and body on calm waterMarine and recreational
  • 20+Years’ experience
  • 1,500+Projects supported
  • 350+Engineering professionals
  • 80%Repeat clients

Where margin leaks

Surface Rework Costs Your Margin

One poor freeform surface found after tooling means recut molds, rework and a delayed launch.

  • Surfaces That Fail Review

    Where margin leaks
    Wavy or uneven surfaces fail design review and send models back for rework.
    What we fix
    Smooth, continuous surfaces checked with curvature and highlight analysis.

  • Scan-to-CAD Errors

    Where margin leaks
    Inaccurate scan conversions produce parts that do not match the real product.
    What we fix
    Scan data rebuilt as accurate surfaces, checked against the original.

  • Unmachinable Geometry

    Where margin leaks
    Gaps, overlaps and broken surfaces stall CAM programming, tooling and the launch date.
    What we fix
    Watertight, clean models ready for machining, molding and simulation from day one.

  • Late Tooling Changes

    Where margin leaks
    Surface changes after tooling starts mean recut molds and missed launches.
    What we fix
    Draft, parting lines and manufacturability checked before tooling release.
Ergonomic computer mouse with smooth sculpted surfaces

What we deliver

Surface Models Ready
for Tooling

  • Class-A Surfacing

    High-quality, continuous surfaces for visible, premium products.

  • Scan to CAD

    3D scans rebuilt as accurate, editable surface models.

  • Mesh Repair and Conversion

    STL and mesh data cleaned and converted to NURBS.

  • Watertight Solid Models

    Closed, clean models ready for CAM and simulation.

  • Curvature and Draft Analysis

    Surface quality, draft and parting lines verified.

  • Production-Ready Files

    STEP, IGES and native files for suppliers and tooling.

  • We work in
  • Rhino
  • CATIA
  • SolidWorks
  • Your templates and standards

How it works

From Scan or Sketch to Surface

Every surface is checked for continuity and quality before tooling begins, so molds are cut once.

  1. 01

    Share Your Documents

    Send drawings, models and specs. We confirm scope, deliverables and dates in writing.

  2. 02

    Build Class-A Surfaces

    Smooth, continuous surfaces built from scan, sketch or data, ready for tooling.

  3. 03

    Check and Release

    Senior review to ASME Y14.5 and AS 1100, checking dimensions and tolerances against source.

  4. 04

    Support Through Tooling

    Fast model edits and surface fixes after each review round until the tooling is approved.

How Much Margin Is Surface Rework Quietly Costing You?

A two-minute Margin Assessment shows where your programs leak, in dollars, and what surfaces right the first time could save.

Request a Margin Assessment

Confidential. No commitment.

What clients ask first

Surface CAD Modeling: Common Questions

Straight answers from our engineering team. If your question isn’t here, ask us directly.

Ask a senior engineer An engineer replies within one business day.
What does surface CAD modeling include?

Precise freeform and Class-A surfaces for products with complex shapes, from concepts or 3D scans, ready for tooling, molding or simulation.

Which standards do you follow, and who is responsible for the design?

ASME Y14.5 for US clients and AS 1100 for Australian clients. Design responsibility stays with your engineering team, who approve the final models. Bimgraphix does not stamp or certify designs; we answer for the model matching your inputs, and any conflict is flagged for your decision, never guessed.

How do you verify surface quality?

Curvature continuity is verified with curvature and highlight analysis, and scan-based surfaces are checked against the original data before release.

Can you keep pace with a large, fast-moving program?

Yes. The team is sized to your program and work is released by part, so nothing waits for the full set. Fees are priced per part or per surface set and fixed in the proposal with the schedule and revision rounds. You can start with one part to test the fit first.

Who owns the work, and how is our data handled?

You do. All designs and models we create for you are your property. We sign your NDA before receiving files, exchange them through your preferred platform or a secure link, and limit access to your project team.

Start a conversation

Built for Programs Where Precision Is Never Optional.

For over 20 years, one standard has guided every model, drawing and component. Let’s talk about where your programs are losing margin.

Start Your Margin Assessment

Or write to info@bimgraphix.com

  • Response within one business day
  • Reviewed by a senior engineer
  • Confidential