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Autodesk Authorized Developer +91 40-4528 7403 sales@fdestech.com

Your workflow in → native tooling out

CAD customization & plugins,
taught how your company works.

The macro that broke when you upgraded to 2026. The LISP routine only one drafter knows how to run. The standards checklist taped to a monitor. That's the work we replace — with custom commands, panels, and add-ins built on the official CAD APIs. They sit in the ribbon, apply your standards automatically, and keep working after every upgrade.

Repetitive clicks One command Standard output, every seat

The gap

Your CAD platform doesn't know your rules

AutoCAD doesn't know your layer scheme. Inventor doesn't know your naming convention. So your drafters carry that knowledge in their heads and apply it by hand, drawing after drawing — and every new hire learns it by making the mistakes first.

Stock CAD + tribal knowledge
Repeated operationsClicked through by hand, all day
Your drawing standardsA wiki page nobody opens
Naming & clearance checksWhoever reviews it catches it — maybe
Adding a fifth drafterThe workflow frays
Your platform, extended
Repeated operationsOne custom command
Your drawing standardsApplied by the tool, not recalled
Naming & clearance checksValidated before save
Adding a fifth drafterSame toolset, day one

Results

What a native plug-in changes about the workday

It feels native

Your commands live in the ribbon next to Autodesk's own. No separate app, no context switch.

Standards hold

Layers, styles, and names come out right because the tool won't produce them any other way.

Clicks disappear

View creation, annotation, and setup sequences collapse into single commands.

Errors surface early

Validation runs while the drafter works — not in review, and not on the shop floor.

Process

How a tool gets built here

Your CAD tools are software, so we treat them like software — scoped, versioned, tested, documented.

STEP 1

Audit & Scope

We sit with your drafters and count the clicks. Then we pin down the API surface, the CAD versions to support, and what the UI has to do.

STEP 2

Development

Built on the native APIs and SDKs in .NET, C#, or C++ — with real error handling and transactional logic, so a failed run never leaves a drawing half-modified.

STEP 3

Testing & QA

We test on your actual assemblies and drawings, including the ugly legacy ones — and against version upgrades and edge cases before anything ships.

STEP 4

Deployment

Signed .msi installers plus documentation. IT rolls it out to every seat like any other piece of software.

Macros vs plug-ins

A recorded macro is not a plugin

A macro is fine right up until the third person uses it — or the next CAD release ships. Then someone spends a week nursing it back to life. Here's the honest difference.

Macros / scripts
New CAD release landsIt breaks — quietly or loudly
Something goes wrongCryptic error; call the author
Input checkingNone — garbage in, garbage drawn
Getting it onto 20 seatsEmail a file, hope for the best
Professional plug-ins
New CAD release landsRebuilt against the API, redeployed
Something goes wrongHandled, logged, rolled back
Input checkingDialogs & task panes validate first
Getting it onto 20 seatsOne .msi, standard IT rollout

Platforms

The platforms we go deep on

Everything is built through the official SDKs. Nothing screen-scraped, nothing reverse-engineered.

AutoCAD · Custom commands (LISP/.NET) · Ribbon UI · ObjectARX · Standards enforcement Inventor · Inventor API · iLogic rules · Assembly config · BOM automation SolidWorks · SolidWorks API add-ins · PDM Pro tasks · Property managers · Macro features Revit · Revit API add-ins · Dynamo nodes · Family automation · Data extraction

Who it's for

Who calls us for CAD customization

Four situations we see over and over.

CAD ADMINS · IT

The CAD admin fielding every request

You're the one who hears "can AutoCAD do this?" all day. You want ribbon commands and panels that behave — and don't become your personal maintenance burden every release cycle.

PDM · ERP · ENTERPRISE

The team retyping data into ERP

Drawing data gets keyed into PDM and ERP by hand, and errors ride along with it. You want CAD talking to those systems directly, from inside the CAD window.

CONSISTENT DRAWINGS

The reviewer drowning in checks

Every drafter's output looks slightly different, and checking drawings eats your senior people's week. You want the standard enforced at creation, not caught at review.

PURPOSE-BUILT TOOLS

The shop that outgrew store-bought

You've bought the plugins and recorded the macros — and your actual workflow still isn't covered. You need tools shaped to your process, not the average of everyone else's.

Questions, answered

What teams ask before hiring us

Which CAD platforms do you develop plugins for?
AutoCAD, Inventor, Revit, and SolidWorks — always through their official APIs: .NET, ObjectARX, iLogic, Dynamo, and VSTA. That coverage includes the AutoCAD verticals, so Electrical and Mechanical workflows are handled too.
Will my plugin survive CAD version upgrades?
Upgrade survival is a design constraint from day one, not an afterthought. We code against the stable, documented API surface and keep every codebase under version control — so when a new CAD release ships, we rebuild, retest, and hand you an updated installer. Clients have carried our add-ins through several annual upgrades this way.
Can you take over maintenance of an existing plugin?
Inherited code is a normal starting point for us — whether it came from an in-house developer who left or from another vendor. We audit what exists, stabilize the crashes, document how it actually works, and get it into version control. Only then do we start adding features.
Do I own the code you develop?
Fully. Source code, documentation, and version history are all delivered to you, and all of it is your intellectual property. No vendor lock-in, no proprietary dependencies — if you never wanted to speak to us again after handover, the code wouldn't stop you.

Client results

What teams measure after rollout

5–10 hrs Handed back to each engineer, weekly
100% Of output on-standard, enforced by the tool
Zero Work stoppages across CAD version upgrades
"Nag figured out a difficult API that Autodesk couldn't solve. His plugin survived three version upgrades without a single issue. That's the kind of engineering depth you don't find elsewhere." CAD Manager · Global Manufacturing Company

Free · no obligation

Tell us the task your team grumbles about most

That's where the audit starts. We watch how the work flows through CAD today, tell you what an add-in can and can't fix, and put numbers and a timeline on it — useful whether or not you build with us.

  • Your highest-friction CAD tasks, identified
  • What to build first — and why that order
  • Cost and timeline you can take to management