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Mechanical CAD · Software we work in

SolidWorks

Parametric 3D CAD modelling, assemblies and manufacturing drawings in SolidWorks.

SolidWorks is a feature-based, parametric mechanical CAD platform. We use it to build part models that stay editable as a design changes, assemblies that move the way the product does, sheet metal and weldments ready for fabrication review, and drawings, BOMs and neutral exports derived from the same model — for manufacturers, fabricators and product teams.

SolidWorks is a product of Dassault Systèmes. Render CAD Hub is an independent modelling and drafting service that uses SolidWorks and is not affiliated with Dassault Systèmes.

Illustrative SolidWorks part: a feature tree on the left builds an L-bracket driven by a length parameterFEATURE TREESketch1 · base profileBoss-Extrude1Boss-Extrude2 · uprightCut-Extrude1 · holesFillet1L = 110CONFIGURATIONSBR-110 · defaultBR-150BR-200PART → ASSEMBLY → DRAWING → BOM → STEPILLUSTRATIVE EXAMPLE
Parametric modelling

Parametric, Feature-Based Modelling

SolidWorks is one of our primary platforms for mechanical parts and assemblies, particularly where a project needs genuinely parametric, feature-based modelling that stays predictable and editable as a design iterates. Its sheet metal and assembly tools in particular make it a strong fit for the fabrication and manufacturing documentation work that makes up a large share of what we produce for Indian manufacturers.

Each part is built from sketches and features in a deliberate order, with dimensions and relations that capture what should change and what should stay fixed. Change a driving dimension and dependent features follow. Try it on the illustrative part below.

Feature tree

Part 1047

L 120
3D modelParametric update
Design intent

Design Intent: Models Built to Be Changed

A model that looks right but breaks the first time someone edits it isn't much use. Design intent is decided before modelling: which dimensions drive the part, which features depend on which, and what references are stable enough to build on.

  • Fully defined sketches

    Every sketch constrained by dimensions and relations, so nothing moves by accident.

  • Stable references

    Features built from planes, axes and origin — not faces likely to disappear.

  • Meaningful feature order

    Base form first, then functional features, then cosmetic details like fillets.

  • Driving dimensions & equations

    Key sizes linked so a change propagates predictably through the part.

Assemblies & mates

Assemblies With Robust Mate Logic

For assemblies, we build mate and constraint logic deliberately rather than just enough to make the model look correct in a single configuration — an under-constrained assembly can move in ways that aren't obvious until a downstream simulation or physical build reveals the problem, and we design the model structure to avoid that.

Standard hardware comes from Toolbox or your own library, sub-assemblies follow how the product is built, and the assembly is tested by changing key dimensions to check it rebuilds cleanly.

123456

Components

Assembly status

Illustrative UI

Components
24
Mates
31
Constraints
Stable
  • Concentric
  • Coincident
  • Distance / angle
  • Mechanical mates
  • Sub-assemblies
  • Interference check
  • Exploded views
  • Large-assembly structure
Sheet metal

Sheet Metal and Flat Patterns

Sheet metal modelling in SolidWorks is where a lot of practical value sits for fabrication clients — the software's flat pattern and bend allowance tools, correctly configured to match your actual press brake and material, produce DXF flat patterns prepared for your nesting and fabrication workflow, checked against your actual process before release.

Bend allowance, K-factor or bend tables, radii and reliefs are set from the tooling and material data you provide. We check flat patterns against that process, but a first-article bend on your brake is still the final confirmation — flat patterns aren't assumed to be correct for every machine.

BENDK-FACTORDXFBEND 90°THICKNESS01 · FLAT SHEET → BEND LINES02 · FOLD → FINISHED ENCLOSURE
  • Your bend data

    K-factor, bend allowance or bend tables from your tooling and material.

  • Reliefs & radii

    Bend reliefs, corner treatments and radii set to what your brake can form.

  • Flat pattern checks

    Hole-to-bend distances, overlaps and flat size reviewed before export.

  • DXF for your workflow

    Flat patterns exported for your nesting or cutting process, with bend lines on a separate layer.

  • Base flange
  • Edge flange
  • Hems & jogs
  • Bend reliefs
  • Flat pattern
  • DXF export
  • Bend notes
Manufacturing drawings

Manufacturing Drawings From the Model

SolidWorks' native drawing tools let us derive fully dimensioned 2D drawings, exploded views and BOMs directly from the same model used for 3D visualisation, which keeps documentation and geometry from drifting apart over the life of a project.

Associativity keeps geometry consistent, but a drawing still needs judgement: which dimensions the machinist or fabricator needs, the tolerances that matter for function, datums and GD&T where specified, and notes on material and finish. For drawing packages see mechanical drafting.

Illustrative manufacturing drawing: front and top views, section A-A, dimensions with tolerances, a geometric tolerance frame, notes and a title block110 ±0.264FRONT2× Ø7 THRUAASECTION A–A0.1ABFLATNESS / DATUM REFERENCESNOTES: 1. REMOVE ALL SHARP EDGES 2. FINISH: ZINC PLATEBRACKET · BR-110MATL S275SCALE 1:2REV BILLUSTRATIVE
  • Orthographic views
  • Sections & details
  • Dimensions & tolerances
  • GD&T
  • Weld symbols
  • Notes & finishes
  • Revision tables
  • Exploded assembly views
Configurations, design tables & BOM

Configurations and Design Tables for Part Families

Configuration management within SolidWorks is a valuable but often under-used feature for manufacturers producing a family of related parts — a single well-structured master model with design table-driven configurations avoids the drift that inevitably creeps in when each variant is maintained as an independently copied file.

Configurations work when variants genuinely share a structure. When they don't, separate parts are simpler — the choice depends on the family. Each configuration can carry its own part number and properties, so the BOM reports the right variant.

Master modelConfig · STANDARD

Design table

Illustrative

Length
120 mm
Boss Ø
42 mm
Hole pattern
4×
Product label
PART 1047-STA

Master model → product family

Workflow

From Sketch to Released Files

One model drives everything downstream, so the order of work matters. Each step has a check before the next one builds on it.

  1. 01

    Sketch

    Fully defined profiles with relations and dimensions.

  2. 02

    Features

    Extrudes, cuts, patterns and fillets in a stable order.

  3. 03

    Part

    Material, properties and configurations set.

  4. 04

    Assembly

    Components located with robust mates.

  5. 05

    Drawing

    Views, dimensions, tolerances and notes.

  6. 06

    BOM

    Driven by custom properties.

  7. 07

    Export

    STEP / IGES / DXF / PDF, checked after export.

Weldments

Weldments and Structural Frames

Weldment and structural member tools in SolidWorks are a practical fit for equipment design involving fabricated steel frames, letting us model and cut-list these members within the same environment as the mechanical equipment they support, rather than treating structural frame design as a disconnected exercise handled in a separate platform.

Members are placed on layout sketches using structural profiles, trimmed and end-treated, and a cut list is generated from the model. Profiles, lengths and end conditions are checked before fabrication drawings are issued.

Illustrative welded frame built from square hollow section members, with balloons matching a cut list1234ILLUSTRATIVE EXAMPLE · SHS FRAME
Cut list · Illustrative example
ItemProfileLengthQty
1SHS 40×40×37004
2SHS 40×40×31000 · mitred2
3SHS 40×40×3600 · mitred2
4SHS 40×40×39001
Surface modelling

Surface Modelling for Complex Shapes

Surface modelling tools come into play for parts with complex, non-prismatic geometry that standard feature-based solid modelling handles poorly — a moulded enclosure or an ergonomically shaped handle, for instance — and we choose between surface and solid modelling techniques based on what the specific geometry actually requires rather than defaulting to one approach for every part.

Surface modelling: boundary surfaces define a curved enclosure, are knitted together, then thickened into a solid1 · BOUNDARY SURFACES2 · TRIM & KNIT3 · THICKEN → SOLIDILLUSTRATIVE EXAMPLE
Assembly approach

Top-Down vs Bottom-Up Assembly Design

Top-down assembly design, where a product's overall envelope or key interfaces are defined before individual components are modelled in detail, suits projects where the overall form needs to be locked in early while detail design continues in parallel — we choose between top-down and bottom-up modelling approaches based on which better fits a specific project's actual design sequence.

Bottom-up suits assemblies of largely independent or standard parts. Either way, in-context references are kept deliberate and limited — too many external references make an assembly fragile and slow.

Top-down: a layout sketch defines the envelope and interfaces, and parts reference itLAYOUT SKETCH · ENVELOPE + INTERFACESHOUSINGSHAFTCOVERPARTS DRIVEN FROM SHARED REFERENCES · IN-CONTEXT LINKS KEPT DELIBERATE

Illustrative example

Tolerance stack-up

Tolerance Stack-Up Support

Tolerance stack-up analysis across an assembly's mating features is worth doing deliberately rather than assumed to work out, particularly for assemblies with several parts contributing to a single critical dimension chain — dimensions and tolerances taken from the model and drawings keep the stack tied to the actual geometry, though critical stacks still need review by a qualified engineer.

We can identify the dimension chain, pull nominal sizes and tolerances from the model and drawings, and set out worst-case or statistical stacks for review.

Tolerance stack: housing 60 ±0.10 minus parts A, B and C gives a 0.50 nominal gapABCGAP60.00 ±0.1020.00 ±0.0525.00 ±0.0514.50 ±0.05CHAINGAP = 60 − (20 + 25 + 14.5)= 0.50 NOMINALCRITICAL STACKS REVIEWED BY A QUALIFIED ENGINEER

Illustrative example — values invented

Stack-up support is not a substitute for specialist tolerance analysis. For critical, safety-related or regulated assemblies, results should be reviewed and signed off by a qualified engineer.
Reverse engineering

Reverse Engineering Into Parametric Models

A parametric SolidWorks model can be rebuilt from a physical sample with measurements, legacy drawings, photographs with reference dimensions, or scan data. Accuracy depends on the input — worn, damaged or incomplete information means some dimensions are interpreted, and those are flagged for confirmation rather than presented as measured. See 3D CAD modelling.

150100Ø1801 · PHYSICAL PART02 · REFERENCE / SCAN03 · 3D CAD MODEL04 · MANUFACTURING DRAWING
Simulation-ready preparation

Simulation-Ready Model Preparation

SolidWorks' simulation and analysis add-ons, where a client has access to them, integrate naturally with models we build, since geometry constructed with simulation in mind from the outset — clean, non-redundant features, appropriately simplified for meshing — saves considerable rework compared to preparing an existing model for analysis after the fact.

That means simplified configurations with cosmetic features and fasteners removed or represented appropriately, clean bodies, and splits where loads or contacts need them.

01 · FULL CAD MODEL02 · GEOMETRY CLEANUP03 · SIMPLIFIED MODEL04 · SIMULATIONREMOVE COSMETIC FEATURESSIMPLIFY GEOMETRYPRESERVE ENGINEERING INTENT
We prepare geometry for simulation; we don't perform or certify the analysis. Loads, boundary conditions, results and engineering conclusions remain with your analyst or engineer.
PDM & file organisation

PDM Practice and File Organisation

For teams managing a large library of legacy parts, SolidWorks' PDM and file management tools (where in use) benefit from disciplined file naming and revision practice from the point a part is first modelled, and we align our delivery structure with whatever data management system your team already has in place.

We work within your vault or file system and its conventions. Vault configuration, workflows and permissions remain with your team or reseller.

PRJ-0420_Conveyor-Frame/
├─ 01_Parts/
│  ├─ 420-101_Side-Rail.SLDPRT      REV B
│  └─ 420-102_Cross-Member.SLDPRT   REV A
├─ 02_Assemblies/
│  └─ 420-100_Frame-Assy.SLDASM     REV B
├─ 03_Drawings/
│  └─ 420-100_Frame-Assy.SLDDRW
└─ 04_Exports/  STEP · PDF · DXF
# Illustrative example
  • Naming

    File names follow your part-numbering scheme.

  • Revisions

    Revision stored as a property, shown on drawings.

  • References

    No broken or absolute-path references on delivery.

STEP / IGES & data exchange

Neutral Exports That Are Checked, Not Assumed

For manufacturers working with overseas suppliers or partners, we pay particular attention to neutral format export quality — STEP and IGES files that translate cleanly into whatever CAD system the receiving party uses, since a poorly exported neutral file can silently lose feature information that only becomes apparent once the receiving party tries to actually use it.

STEP and IGES carry geometry, not feature history — the recipient gets a solid they can measure and machine from, but not the parametric tree. Every export is re-opened and checked before it's sent.

Native SolidWorks part with full feature historyFEATURE TREEBase-ExtrudeUprightHole patternFilletChamferPART.SLDPRT

Illustrative example

  • STEP AP214 / AP242
  • IGES
  • Parasolid
  • DXF / DWG
  • PDF drawings
  • eDrawings
  • Units check
  • Structure check
Manufacturing-aware design

Modelling With the Manufacturing Process in Mind

Geometry is modelled for the way it will be made. Final manufacturability is confirmed with your machinist, fabricator, toolmaker or foundry, who know the specific process limits.

  • Machined parts

    Tool access, standard hole sizes, sensible internal radii and datums matched to fixturing.

  • Sheet metal

    Bend radii, reliefs and hole-to-bend distances matched to your tooling.

  • Moulded & cast parts

    Draft, wall thickness, ribs and parting lines considered during modelling.

  • Welded fabrications

    Standard profiles, accessible weld joints and clear cut lists.

  • Standard hardware

    Catalogue fasteners and components rather than custom parts where possible.

  • Material use

    Part count and material reviewed where a design-for-manufacture review is in scope.

Templates, BOM standards & custom properties

Templates, BOM Standards and Custom Properties

Drawing template and BOM configuration set up early in a project pays off considerably over its life — a BOM structured to match your procurement team's actual needs, and a drawing template that matches your company's standard title block from the first sheet, avoids a painful retrofit exercise once dozens of drawings already exist in an inconsistent format.

Custom properties are the link between model, drawing and BOM. Set once in the part template, they fill the title block and BOM columns automatically.

Custom properties → where they appear · Illustrative example
PropertyExample valueTitle blockBOM
PartNo420-101
DescriptionSide rail
MaterialS275 (from model)
FinishZinc plate—
Mass4.2 kg (from model)—
RevisionB—
Vendor——
Rendering

Rendering From the Engineering Model

Rendering and visualisation add-ins available within SolidWorks, where relevant to a client's needs, let us produce presentation-quality images directly from the same model used for engineering, which is a practical way to support a product pitch or marketing need without maintaining an entirely separate visualisation file.

For higher-end marketing visuals, see our 3D rendering service.

Choosing the tool

SolidWorks vs AutoCAD vs Revit

Each is built for a different kind of deliverable. Here is roughly where each one fits. For the others, see AutoCAD drafting and documentation and Revit BIM modelling and coordination.

SolidWorks compared with AutoCAD and Revit by requirement
RequirementSolidWorksAutoCADRevit
Parametric 3D part modellingCore strengthBasic 3D; mainly 2DBuilding elements & families
Mechanical assemblies & matesCore strengthNot its focusNot its focus
Sheet metal & flat patternsBuilt-in toolsDrawn manually in 2DNot its focus
Manufacturing drawings from the modelAssociative to the modelDrawn directly in 2DConstruction documentation
2D drafting & DWG exchangePossible; exports DWG/DXFNative strengthExports DWG
Building / BIM coordinationNot its focusLimitedCore strength
Used for

What SolidWorks Is Used For Here

  • Parametric part and assembly modelling
  • Sheet metal design and flat pattern development
  • Manufacturing drawing production
  • Reverse engineering
  • BOM and assembly documentation derived directly from the model
  • Configuration-driven modelling for related part families
Deliverables

What We Can Deliver

  • 01

    Parametric 3D part models

    Feature-based SolidWorks parts with clear design intent and editable history.

  • 02

    Assemblies

    Structured assemblies with deliberate mates, sub-assemblies and standard hardware.

  • 03

    Manufacturing drawings

    Dimensioned and toleranced part, assembly and fabrication drawings.

  • 04

    Sheet metal flat patterns

    Flat patterns and DXFs set to the bend data you supply.

  • 05

    Weldment cut lists

    Structural member frames with cut lists and fabrication drawings.

  • 06

    Configurations & design tables

    Part families driven from one master model where it fits.

  • 07

    BOMs & custom properties

    Property-driven BOMs matched to your numbering and procurement fields.

  • 08

    Neutral exports

    STEP, IGES, Parasolid, DXF and PDF — validated after export.

FAQs

SolidWorks Modelling FAQs

Yes. Bend allowance, K-factor or bend tables, bend radii and relief settings are set from the tooling and material information you supply rather than left at software defaults. Flat patterns are then checked against that process. Where your shop has its own tested bend data, we use it — a first-article bend on your brake remains the final confirmation.

Yes. Mates reference stable geometry — planes, axes and design features — rather than faces or edges likely to disappear when a part changes, and the assembly is constrained to move only where the real mechanism moves. We test it by changing key dimensions and checking that it rebuilds without errors or unexpected movement.

Yes. Drawings, exploded views, section views and BOMs are created from the model, so they update when the model changes. Dimensions, tolerances, GD&T, notes and title block content are added to suit the manufacturing purpose of each drawing and checked before issue — associativity keeps geometry consistent, but the drawing still needs a proper review.

Yes. A parametric model can be built from a physical sample with measurements, legacy drawings, photographs with reference dimensions, or scan data. Accuracy depends on the input: wear, damage or missing information means some dimensions are interpreted, and those are flagged for confirmation rather than presented as measured.

Yes, where the variants genuinely share a structure. One master model driven by configurations or a design table keeps sizes, options and part numbers consistent and avoids copied files drifting apart. Where variants differ too much, separate parts are simpler and more maintainable — we choose based on the family, not by default.

Yes. Geometry can be simplified for analysis — small fillets, cosmetic features and fasteners removed or represented appropriately, contacts and loads considered in how the model is split. This is model preparation only; the analysis, its assumptions and engineering conclusions sit with the person or team performing the simulation.

Yes. File naming, part numbering, custom properties and folder structure follow your conventions so delivered files slot into your vault or file system. We work within your system rather than administering it — vault configuration and workflows remain with your team.

Yes. Frames are modelled with structural member profiles, trimmed and end-treated, with a cut list generated from the model. The cut list, profiles and end conditions are checked before drawings are issued, and weld symbols and notes are added to match your fabrication standard.

Yes, where the shape needs it — moulded enclosures, ergonomic handles and blended transitions are often easier to control with surfaces, which are then knitted and thickened into a solid. Prismatic machined or fabricated parts are usually better as straightforward solid features.

Yes. BOM columns, part numbering, descriptions, materials and quantities are driven by custom properties agreed with your team, so the BOM reads correctly without manual editing. Setting this up early avoids correcting properties across hundreds of parts later.

Yes. Draft, wall thickness, ribs, bosses and parting lines are considered during modelling. Final mouldability or castability should be reviewed with your toolmaker or foundry, who know the specific process and tool constraints.

Yes, on the CAD-data side — cleaning up file names, duplicate parts, broken references and custom properties so files are ready to check in. Installing and configuring the PDM system itself is handled by your IT team or reseller.

Yes. Jigs, fixtures and tooling are modelled around the part, locating scheme and process you describe, with drawings and BOMs for manufacture. Fit and repeatability are confirmed on the shop floor during trial.

Yes. A design review can look at material, part count, standard sizes and manufacturing method and propose changes. Any change that affects strength, function or certification needs engineering verification before it's adopted.

Yes. Standard hardware can come from Toolbox or your own library, whichever your team uses, with properties set so fasteners appear correctly in the BOM.

Yes. Part geometry is prepared with draft, parting considerations and clean surfaces so it can feed tooling design. Tool design itself, including shrinkage and gating, sits with your toolmaker unless agreed otherwise.

Yes. Sub-assembly structure, simplified configurations, mate references and in-context relations are reviewed so large assemblies open, rebuild and draw more efficiently. Hardware and file location also affect performance, so results vary.

Yes. Simulation intent is discussed before modelling so geometry, splits and simplified configurations suit the analysis. The analysis itself is performed and interpreted by your engineer or analyst.

Yes. Top-down suits designs where an envelope, layout sketch or key interfaces drive the parts; bottom-up suits assemblies of largely independent or standard components. In-context references are kept deliberate and limited so the assembly doesn't become fragile.

We can support it — identifying the dimension chain, extracting nominal dimensions and tolerances from the model and drawings, and setting out a worst-case or statistical stack for review. For critical, safety-related or regulated assemblies it should be reviewed by a qualified engineer and isn't a substitute for specialist tolerance analysis.

Yes, where it's in scope. Renders from the engineering model keep visuals consistent with the actual design. For higher-end marketing imagery, see our 3D rendering service.

Export settings are agreed with the recipient where possible, and STEP or IGES files are re-opened and checked after export — geometry, units, assembly structure and missing faces. Neutral formats carry geometry, not feature history, so the supplier receives a dumb solid unless native files are also supplied.

Yes. Native files are kept organised, and neutral STEP files with drawings in PDF/DWG can be maintained alongside them. Feature history won't transfer between platforms, so recipients will usually need to rebuild or use direct-editing for changes.

Yes. Visible surfaces, split lines, fastener positions, draft and textures are considered alongside the internal fit of components, and cosmetic intent is reviewed with you before tooling information is prepared.

Yes. Ongoing modelling and drafting support works to your templates, properties and file conventions, so delivered parts and drawings fit your existing library.

Get a Quote for SolidWorks Work

Send sketches, drawings, existing models or photos of the part, your templates and properties if you have them, and the SolidWorks version you use. We'll review it and come back with a scope.

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