Mechanical 3D modeling

Get Every Assembly Right Before You Machine It

A machine built from an unchecked model means scrap and rework. We create machine-ready 3D models and check every assembly, so parts fit the first time.

See What Assembly Rework Costs You
  • Fits and tolerances checkedStack-ups verified.
  • Machine-ready modelsBuilt for CNC and casting.
  • Assemblies verifiedMotion and interference.
  • Checked before releaseSenior review on every part.
  • Machined turbine shaft assembly with bladed rotor and mounting flangeTurbomachinery assemblies
  • Aircraft landing gear assembly with shock strut, linkages and four wheelsAerospace assemblies
  • Electric vehicle traction motor with copper stator windings and orange high-voltage cablesElectric drivetrains
  • Skid-mounted gas turbine generator package with enclosure and walkwaysPower generation
  • 20+Years’ experience
  • 1,500+Projects supported
  • 350+Engineering professionals
  • 80%Repeat clients

Where margin leaks

Assembly Rework Costs Your Margin

Machined parts are costly to remake. One fit error on the shop floor means scrap and late delivery.

  • Parts That Do Not Fit

    Where margin leaks
    Fit and tolerance stack-up errors surface only after parts are machined.
    What we fix
    Fits, tolerances and stack-ups checked in the assembly model, so parts fit the first time.

  • Scrapped Machined Parts

    Where margin leaks
    Drawing errors turn expensive castings, forgings and billets into scrap.
    What we fix
    Every feature dimensioned and checked before release, so costly stock is cut only once.

  • Assembly Interferences

    Where margin leaks
    Moving parts collide or bind once the machine is assembled, and parts are remade.
    What we fix
    Motion and interference checks on every assembly, so machines run right at first build.

  • Late Engineering Changes

    Where margin leaks
    Changes after release ripple through suppliers, tooling and schedules, adding cost.
    What we fix
    Designs resolved and verified in 3D before release, so suppliers build it once.
Precision-machined industrial gearbox with splined input shaft and bolted bearing housings

What we deliver

3D Models Your Shop
Can Machine From

  • 3D Part Models

    Precise, fully parametric models of every component.

  • Assembly Models

    Complete assemblies with every fit and connection defined.

  • Tolerance and Fit Analysis

    Stack-ups and clearances checked before parts are made.

  • Motion and Interference Checks

    Moving parts verified through their full range of motion.

  • Manufacturing Drawings

    Dimensions, tolerances and GD&T for every part.

  • 2D to 3D Conversion

    Legacy drawings rebuilt as accurate, parametric 3D models.

  • We work in
  • SolidWorks
  • AutoCAD
  • Fusion 360
  • Your templates and standards

How it works

From Concept to Machining

Assemblies are verified in the model before anything is machined.

  1. 01

    Share Your Documents

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

  2. 02

    Model Every Part

    Parts and assemblies are modeled with fits and tolerances, ready for machining drawings.

  3. 03

    Check and Release

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

  4. 04

    Support Through Build

    Fast edits and answers through production, so machining and assembly keep moving.

How Much Margin Is Assembly Rework Quietly Costing You?

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

Request a Margin Assessment

Confidential. No commitment.

What clients ask first

Mechanical 3D 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 mechanical 3D modeling include?

Precise 3D models of mechanical parts and assemblies, with fits, tolerances and motion checked, plus manufacturing drawings, in your CAD platform.

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 make sure assemblies fit?

Fits, tolerances and interference are checked in the assembly, and every part is checked for manufacturability 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 assembly, so nothing waits for the full set. Fees are priced per part or per assembly and fixed in the proposal with the schedule and revision rounds. You can start with one assembly 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