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CAD add-in development
Implement cad add-in development around the host application's document model, event lifecycle, undo stack, and versioned API contracts.
Custom engineering software · Worldwide industrial delivery
Custom CAD Plugin Development Services for enterprise engineering applications
Custom CAD Plugin Development Services for organizations that need dependable CAD add-ins, explicit technical ownership, and production-grade CAD APIs, document events, command lifecycles and deployment.
Built for: CAD ISVs, aerospace OEMs, manufacturing engineering teams and PLM integrators in the US, Europe, Canada, Australia, Japan, and the Middle East
Why enterprises commission CAD plugin development
CAD plugin development becomes a product decision when CAD add-ins must behave predictably with the models, policies, and review gates that define your business. Generic software may show the right feature in a demonstration, but it cannot know your tolerances, data conventions, compatibility obligations, or the decisions users make under delivery pressure.
Our work starts at the technical seam: CAD APIs, document events, command lifecycles and deployment. We use representative files, workloads, and failure cases to make that seam explicit, then define the interfaces and acceptance evidence that keep the implementation honest. This prevents the expensive late-stage discovery that a promising prototype does not survive production data.
CAD add-in development, CAD API integration, and custom CAD commands are designed as connected product capabilities rather than isolated custom features. That means operability is considered with correctness: diagnostics explain what happened, integration contracts are versioned, and performance budgets are measured against the conditions your engineers actually face.
The delivery plan gives product, engineering, security, and procurement teams a common basis for approval. Milestones produce usable increments, source and documentation remain available for long-term ownership, and a release path accounts for CAD automation, parametric modeling, drawing automation, and CAD data integration from the beginning.
Industrial pain points we remove
CAD add-in development breaks on real inputsReal-world CAD add-ins expose scale, tolerance, permission, and legacy-data cases that a feature demo does not reveal.
Critical expertise lives in manual stepsWhen specialists repair, approve, or rerun work by hand, delivery capacity cannot grow without accumulating operational risk.
CAD API integration lacks an accountable boundaryUnversioned plug-ins, scripts, and point integrations make upgrades, incident diagnosis, and support unnecessarily fragile.
Performance has no measurable budgetLarge workloads require explicit latency, memory, accuracy, and recovery targets before architecture choices become difficult to reverse.
Release ownership is ambiguousEnterprise buyers need source, dependency, deployment, security-update, and handover decisions documented before go-live.
Capability stack delivered
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CAD API integration
Build cad api integration with explicit failure states, representative production inputs, and regression coverage for upgrade-safe releases.
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custom CAD commands
Design custom cad commands so specialist decisions become governed, discoverable workflows instead of undocumented desktop steps.
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CAD automation
Engineer cad automation with queueing, retry behavior, audit records, and throughput limits suited to real engineering operations.
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parametric modeling
Validate parametric modeling against difficult edge cases: large files, partial data, tolerances, permissions, and concurrent users.
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drawing automation
Connect drawing automation to surrounding PLM, PDM, solver, identity, or reporting systems without creating brittle point integrations.
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CAD data integration
Ship cad data integration with build automation, diagnostics, deployment guidance, and source-level handover for long-lived ownership.
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Performance and release engineering
Profile CAD APIs, document events, command lifecycles and deployment; establish measurable latency, memory, accuracy, and compatibility targets before production rollout.
Services included
CAD add-in developmentCAD API integrationcustom CAD commandsCAD automationparametric modelingdrawing automationCAD data integrationArchitecture and API designPerformance profilingBuild, deployment and support handover
Industries & programs we serve
AerospaceDefenseManufacturingAutomotiveRoboticsMedical DevicesIndustrial EquipmentEnergyResearch LaboratoriesUniversities
Technologies we ship with
SolidWorksAutodesk APIsC++C#.NETQtCOMREST APIs
Why choose Hendoi
Domain-specific architecture
We make CAD APIs, document events, command lifecycles and deployment a first-class architectural concern instead of hiding it beneath generic application layers.
Evidence before expansion
Representative CAD add-ins prove compatibility, correctness, and throughput before broader scope consumes budget.
Native performance discipline
C++, GPU, memory, and I/O choices are profiled against a defined performance budget rather than optimized by intuition.
Integration designed early
APIs, files, identity, and deployment boundaries are designed alongside the core feature so users do not inherit a disconnected tool.
Production-grade QA
Regression fixtures cover known bad inputs, edge conditions, interoperability changes, and the failures support teams must diagnose.
Transparent IP ownership
Source-code ownership, third-party components, build instructions, and release responsibilities are made clear for enterprise procurement.
Maintainable product handover
Your team receives documented interfaces, automated checks, operational guidance, and a roadmap that can survive changing standards.
Development process
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Workflow and data audit
Trace how CAD add-ins move through creation, review, failure, and approval; identify the users, systems, files, and decisions in scope.
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Representative case selection
Assemble successful, marginal, and failing examples that expose the compatibility and performance conditions the release must meet.
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Technical risk framing
Turn unknowns in CAD APIs, document events, command lifecycles and deployment into bounded experiments with assumptions, owners, exit criteria, and commercial implications.
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Architecture decision record
Define module boundaries, data contracts, persistence, concurrency, diagnostics, and the technology choices required for durable ownership.
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Proof-of-behavior prototype
Demonstrate the critical path with real data before investing in breadth, polish, or integrations that depend on it.
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Incremental implementation
Deliver CAD add-in development, CAD API integration, and related workflows in reviewable increments with source control, build automation, and technical demonstrations.
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Integration and failure testing
Exercise dependent systems, malformed inputs, permissions, upgrades, and recovery paths—not only the happy path.
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Performance and acceptance review
Measure agreed response time, memory use, throughput, numerical or geometric correctness, and operational observability against the target cases.
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Release, handover and roadmap
Package deployment, training, documentation, support triage, ownership, and next-release priorities for the team that will operate it.
Engagement deliverables
A prioritized CAD plugin development roadmap and architecture decision record
Production modules for CAD add-in development and CAD API integration with source and build guidance
Acceptance evidence using representative CAD add-ins
Integration contracts, release checklist, and operational diagnostics
Technical documentation and knowledge-transfer sessions
Optional maintenance, performance tuning, and roadmap support
Frequently asked questions
What is included in a CAD plugin development discovery?
We map the CAD add-ins workflow, inspect representative cases, define CAD APIs, document events, command lifecycles and deployment, and return a phased delivery plan with explicit risks.
Can you integrate CAD add-in development with our current systems?
Yes. We identify the required API, file, identity, PLM, PDM, solver, or reporting contracts before implementation begins.
How do you prove CAD API integration works with production data?
Acceptance cases include normal, boundary, legacy, malformed, and high-volume inputs, with expected results agreed with your technical owners.
Which technology stack do you recommend for CAD add-ins?
SolidWorks, Autodesk APIs, C++, C#, .NET are assessed against your existing platform, performance target, licensing constraints, and support model.
Can this CAD plugin development run on-premises?
Yes. Windows, Linux, isolated networks, controlled installers, and on-premises update paths can be included in the architecture.
How are security and third-party dependencies reviewed?
We document data flows, access boundaries, dependencies, SBOM expectations, patching responsibilities, and the deployment model for practical review.
Can you modernize a legacy CAD plugin development application?
Yes. We stabilize the current CAD add-ins, establish regression fixtures, then replace high-risk seams progressively rather than forcing a disruptive rewrite.
How do you address custom CAD commands edge cases?
We preserve difficult fixtures and turn their expected behavior into automated checks, with unsupported cases made visible rather than silently degraded.
Who owns source code and technical IP?
Ownership, repository access, third-party licenses, build instructions, and delivery artefacts are scoped explicitly for your procurement and product strategy.
How are delivery milestones governed?
Each milestone combines a working increment, test evidence, documented decisions, and a stakeholder demonstration against agreed exit criteria.
Can you support performance tuning after CAD automation is live?
Yes. We can profile production workloads, prioritize bottlenecks, extend telemetry, and deliver a measured optimization roadmap.
Will our internal engineers receive a handover?
Yes. Handover includes source orientation, architecture documentation, build and release procedures, test fixtures, and support-triage guidance.
Do you work with distributed engineering teams?
Yes. English-language documentation and scheduled technical reviews support teams across North America, Europe, Asia-Pacific, and the Middle East.
What happens when parametric modeling requirements change?
The design isolates contracts and feature boundaries so revised workflows can be estimated, implemented, and regression-tested without destabilizing the core system.
Scope your CAD plugin development program with engineering confidence
For engineering clients across the US, Europe, Canada, Australia, Japan, and the Middle East: share your workflow, sample data, constraints, and target outcomes. Hendoi will return a phased technical delivery plan.