CAD Automation May 15, 2026 ⏱ 7 min read

CAD Automation with iLogic —
5 Real Engineering Examples

Abstract examples don't help engineers learn. Here are 5 real CAD automation scenarios — the kind that come up in actual engineering work — all built with Autodesk Inventor iLogic.

When engineers first hear about iLogic, they often ask: "But what would I actually use it for?" The answer is: almost anything repetitive in your current Inventor workflow. Here are 5 concrete examples.

EXAMPLE 01
Skid Frame Configurator
Saves 4–6 hours per design

A structural skid frame changes beam sizes, cross-member spacing, gusset thickness, and weld spec depending on load rating and frame length. Without automation, an engineer manually updates 20+ parameters every time a new variant is requested.

With iLogic CAD automation, a single rule reads the load rating and frame length, then automatically drives every dimension:

' Skid Frame Configurator Rule If LoadRating = 10 And FrameLength = 4000 Then Parameter("MainBeam_H") = 200 Parameter("MainBeam_W") = 100 Parameter("XSpacing") = 1000 Parameter("GussetThk") = 10 End If iLogicVb.UpdateWhenDone = True

The engineer simply changes two inputs — the entire model, BOM, and drawing update automatically.

EXAMPLE 02
Automatic iProperties Population
Saves 1–2 hours per release

Every time a design is released for production, engineers manually type Part Number, Description, Revision, Material, and Designer into every single part file. On a 50-component assembly, that's hours of error-prone data entry.

With iLogic CAD automation, one rule populates all iProperties across every component automatically:

' Auto-fill iProperties on all components iProperties.Value("Summary", "Part Number") = ProjectNo & "-" & ComponentCode iProperties.Value("Summary", "Description") = PartName & " — " & Material iProperties.Value("Project", "Revision") = RevisionLevel

Run once — all 50 parts are updated in seconds. Consistent, error-free, and traceable.

EXAMPLE 03
Excel-Driven Product Configurator
Saves full redesign time per variant

Companies with large product catalogues — pump bases, conveyor frames, cable trays — manage specifications in Excel. Without automation, every new order means manually re-modelling from a previous file.

With iLogic, Inventor reads directly from an Excel row. Change the row number, run the rule — completely different product variant, fully modelled:

' Read design data from Excel Dim xl As New ExcelReader("C:\Products\Catalogue.xlsx") Parameter("Length") = xl.GetCellValue("Sheet1", Row, "B") Parameter("Width") = xl.GetCellValue("Sheet1", Row, "C") Parameter("Height") = xl.GetCellValue("Sheet1", Row, "D")
EXAMPLE 04
Automatic Drawing Generation
Saves 2–3 hours per drawing set

Creating drawing views, adding dimensions, populating title blocks, and exporting PDFs is pure repetitive work. iLogic can automate the entire drawing output workflow:

' Auto-generate and export drawing Dim oDoc As DrawingDocument oDoc = ThisApplication.Documents.Open(DrawingTemplate) ' Update title block from iProperties iLogicVb.RunExternalRule("UpdateTitleBlock") ' Export to PDF oDoc.SaveAs(OutputPath & PartNumber & ".pdf")

One click — drawing views created, title block filled, PDF exported to the correct folder. Every time.

EXAMPLE 05
Feature Toggle for Product Variants
Eliminates separate variant files

Instead of maintaining 6 separate Inventor files for 6 product variants, one master model with iLogic feature control handles all variants. Lifting lugs, drain nozzles, handrail posts, gusset plates — each is suppressed or activated by a single parameter change:

' Feature toggle based on product spec Feature.IsActive("LiftingLug_Feature") = IncludeLiftingLugs Feature.IsActive("DrainNozzle_Feature") = IncludeDrainNozzle Feature.IsActive("HandrailPost_Pattern") = IncludeHandrail iLogicVb.UpdateWhenDone = True

One master model. Infinite variants. No file duplication. No version control nightmare.

What These Examples Have in Common

Every example above shares the same pattern: engineer inputs one or two values → iLogic handles everything else. That's the core promise of CAD automation with iLogic — you define the logic once, and it runs reliably every time.

All five examples are covered in CAD Automator's live iLogic training program. You won't just see these examples — you'll build them yourself, inside your own Inventor, with a trainer watching and guiding in real time.

Build These Automations Yourself

CAD Automator's iLogic training teaches you to build real-world automation — not toy examples. 50+ hours, 19 modules, live instruction.

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