Book a call
Custom CAD Software Development, Custom CAD, Software Development, Custom CAD Software, CAD Software Development

Why Custom CAD Software Development Matters

Off-the-shelf CAD tools are powerful – but often too generic for complex, real-world projects.

Engineering teams face daily challenges:

  • Wasted hours on repetitive tasks like routing, tagging, or annotation
  • Disconnected workflows between CAD, ERP, simulation, and procurement
  • Manual input of spec data into tools like CAESAR II or HYSYS
  • Limitations of rigid plugins that don’t match internal standards
  • Difficulty scaling or adapting tools to project-specific needs

Custom CAD software bridges these gaps – automating design logic, integrating systems, and aligning tools with your workflows.

At InStandart, we build exactly what your engineers need – not what off-the-shelf platforms assume.

Our Expertise

CAD Plugins & Extensions

AutoCAD / Plant 3D / MEP – automate drawing generation, routing, annotation, spec-based component placement
Revit – develop project-specific add-ins for BIM data management, export, clash tagging, parameter validation
AVEVA E3D & Diagrams – PML-based modules for attribute handling, spec compliance, and model customization
Intergraph Smart 3D – model automation, reporting, and integration extensions (on request)

BIM Automation & Toolsets

Custom Revit tools for MEP layout, family insertion, and space zoning
Rule-based model validation engines (naming, LOD, classification)
Automated BoM/MTO/schedule generation based on project stage
Multi-discipline model coordination tools with change detection and versioning

Simulation & Analysis Integrations

Export geometry and specs directly to CAESAR II, PASS START, or HYSYS
Auto-fill simulation input files based on model metadata (e.g. pipe routes, supports, pressures)
AI-augmented loops for parameter tuning, stress scenario generation, or design validation
Auto-import simulation results back into CAD for visualization or flagging

Digital Twin Platform Development

Unity/Three.js-based 3D navigation environments
Link model elements to sensor values, alarms, statuses
Develop real-time dashboards for maintenance, operations, or training
Integrate SCADA/IoT streams and enterprise datasets (ERP, CMMS, MES)

Operator Training Simulators

Based on CAD or BIM models → turned into Unity/VR simulations
Custom SOP flows, interaction scripting, and fault response scenarios
Performance tracking for user assessment and certification
Deployment for desktop, mobile, or browser use

Enterprise System Integration (SAP, PLM, ERP)

Auto-export BoMs, asset specs, and equipment IDs to SAP S/4HANA, Oracle, or custom ERP
Bidirectional data sync for design–procurement–construction workflows
Tools for real-time tracking of procurement, installation, and commissioning readiness
Model-based dashboards for supply chain coordination, change logs, and compliance audits

Faster Engineering Workflows. Automate 60–70% of repetitive design and drafting operations. Lower Licensing & Operating Costs. Reduce usage of costly simulation and modeling licenses with streamlined tools. Higher Accuracy, Lower Risk. Auto-generated specs, validated models, and simulation integration reduce errors and rework. Stronger Collaboration. Centralized tools and versioning improve team coordination across disciplines and contractors. Full Digital Ecosystem. Bridge the gap between CAD, ERP, simulation, and operations with seamless integrations. Long-Term Value. Solutions are scalable, maintainable, and customized to your internal engineering logic.

Benefits for Your Business

  • Faster Engineering Workflows. Automate 60–70% of repetitive design and drafting operations.
  • Lower Licensing & Operating Costs. Reduce usage of costly simulation and modeling licenses with streamlined tools.
  • Higher Accuracy, Lower Risk. Auto-generated specs, validated models, and simulation integration reduce errors and rework.
  • Stronger Collaboration. Centralized tools and versioning improve team coordination across disciplines and contractors.
  • Full Digital Ecosystem. Bridge the gap between CAD, ERP, simulation, and operations with seamless integrations.
  • Long-Term Value. Solutions are scalable, maintainable, and customized to your internal engineering logic.

Our Process

Step 1

Pre-Project / Conceptual Stage

Define the business case, technical feasibility, and early strategy

✔ Market research, site constraints, stakeholder input

✔ InStandart contributes with:

→ CAD tool feasibility analysis

→ System architecture consulting

→ Early-stage prototyping (sketch-level BIM models, digital concept maps)

Step 2

FEED (Front-End Engineering Design)

Establish scope, functional specs, layout options, and cost estimates

✔ Develop schematic models, P&IDs, and project frameworks

✔ InStandart provides:

→ Custom parametric modeling tools

→ BIM setup templates (Revit, Plant 3D, AVEVA E3D)

→ Initial automation of BoMs and equipment tagging

Step 3

Detail Design

Full-scale modeling and engineering for execution

✔ Structural, MEP, process modeling; clash detection; spec sheets

✔ InStandart supports with:

→ CAD automation tools (routing, annotation, drawing generators)

→ Plugin development

→ Clash & change tracking systems

Step 4

Simulation & Validation

Ensure compliance, safety, and engineering performance

✔ Pipe stress, thermal, fluid dynamics, and chemical simulation

✔ InStandart integrates:

→ CAD ↔ CAESAR II, HYSYS, PASS START

→ AI-assisted parameter tuning and batch testing

→ Post-processing dashboards

Step 5

Procurement & Documentation

Prepare all data for supply chain and regulatory delivery

✔ Extract BoMs, issue POs, create vendor packages

✔ InStandart enables:

→ Automated CAD-to-ERP/PLM workflows

→ Spec-driven material management

→ Digital handover data (Excel, XML, SAP-ready)

Step 6

Construction & Installation

Manage site execution and progress tracking

✔ Material delivery, install sequencing, construction verification

✔ InStandart delivers:

→ 5D dashboards (cost/time linked to model progress)

→ Field-friendly install tracking tools

→ Clash revalidation & live status visualization

Step 7

Commissioning & Handover

Final checks, documentation, and asset onboarding

✔ Functional testing, safety validation, data packaging

✔ InStandart supports with:

→ Automated export tools (COBie, PDF, Excel)

→ Asset tagging, SAP/CMMS-ready files

→ Interactive facility overview UIs

Step 8

Operations, Maintenance & Training

Long-term system use, staff enablement, and facility upkeep

✔ Maintenance scheduling, operator training, retrofits

✔ InStandart offers:

→ Unity-based operator simulators

→ Digital Twin platforms with live data overlays

→ Custom HMI development for local/remote interfaces

Success Stories

Integration of CAD/BIM with SAP for a Midstream Gas Processing Plant

InStandart integrated AutoCAD Plant 3D with SAP S/4HANA for a leading oil and gas company, eliminating data silos and automating data exchange between engineering and enterprise systems.

  • BoM data entry time cut from 4 hours to under 15 minutes.
  • Manual data errors reduced from 15% to below 2%.
  • Engineering–procurement handover shortened from 6+ weeks to 1 week.
Read more about the case
Integration of CAD/BIM with SAP for a Midstream Gas Processing Plant

Operating Simulator for Air Separation Unit Based on Detailed Design

InStandart developed a realistic 3D operator training simulator for an air separation unit (ASU), enabling safe and repeatable training while reducing operational risks and costs.

  • Faster, safer training: Reduced operator onboarding time from 4–6 weeks to 2–3 weeks and cut training incidents by 80%
  • Cost efficiency: Lowered training costs per operator by 60% through virtual simulations instead of live equipment
  • Improved preparedness: Increased retention of procedures to over 90% and emergency response readiness by 70%
Read more about the case
Operating Simulator for Air Separation Unit Based on Detailed Design

Technologies We Use

CAD & BIM Platforms

Autodesk AutoCAD, CAD, CAD Platforms, Autodesk, AutoCAD AutoCAD
AutoCAD Plant 3D, CAD, CAD Platforms, AutoCAD, Plant 3D, AutoCAD Plant 3D SDK AutoCAD Plant 3D
AutoCAD MEP, CAD, CAD Platforms AutoCAD MEP
Revit, CAD, CAD modeling, software development, custom software, CAD software, 3D, Autodesk Revit, Revit API Autodesk Revit
AVEVA E3D and AVEVA Diagrams, CAD, CAD platforms, AVEVA E3D, AVEVA Diagrams, AVEVA E3D & Diagrams plugins AVEVA E3D & AVEVA Diagrams
SolidWorks, CAD, CAD platforms SolidWorks API
Intergraph Smart 3D and Intergraph Instrumentation, CAD, cad platforms, Intergraph Smart 3D, Intergraph Instrumentation Intergraph Smart 3D + Instrumentation
Navisworks API, Modeling & BIM Development, BIM & Digital Twin Development Navisworks API

Simulation & Engineering Analysis Integration

CAESAR II, Engineering Analyses and Simulations Systems, CAD CAESAR II
PASS START, Engineering Analyses and Simulations Systems, CAD PASS START-PROF
Aspen HYSYS, Engineering Analyses and Simulations Systems, CAD Aspen HYSYS
ANSYS, Custom CAD Software Development, Simulation & Engineering Analysis Integration ANSYS

Core Development Stack

.NET, custom software development, custom software, software development, web development, Microsoft .NET Framework .NET Framework
C#, custom software development, software development, custom software, web development C#
VB.NET, Custom CAD Software Development, Core Development Stack VB.NET
WPF, Microsoft WPF, CAD, 3D models, CAD software, software development WPF
Python, custom software development, custom software, software development, web development Python
Dynamo, Modeling & BIM Development, BIM & Digital Twin Development Dynamo
NodeJS, custom software development, custom software, software development, web development, Node.js + Express Node.js

Visualization & Simulation Platforms

Unity, game development, game design and development, gaming, game engines, Unity Runtime Library, Unity3D + Unity Reflect Unity 3D + Reflect
Three.js, Web & Cloud Visualization Technologies, 3D Modeling & Visualization Tools Three.js
Unity WebGL, Web & Cloud Visualization Technologies, 3D Modeling & Visualization Tools WebGL
Unreal Engine, Unreal, game engine, game development, game design and development, gaming, game engines Unreal Engine

Enterprise Integration & Data Processing

SAP S/4HANA, Data Integration & Real-Time Systems, BIM & Digital Twin Development SAP S/4HANA
Oracle ERP integration, Data Integration & Real-Time Systems, BIM & Digital Twin Development Oracle ERP
Microsoft SQL Server, databeses, software development, custom software development SQL Server
PostgreSQL, databases, custom software development, custom software PostgreSQL
REST, Integration & API Layers, 3D Modeling & Visualization Tools REST
GraphQL, Integration & API Layers, 3D Modeling & Visualization Tools, GraphQL APIs GraphQL APIs
MQTT, Communication Protocols, Advanced Integration for Smart Devices MQTT
OPC UA, Integration & API Layers, 3D Modeling & Visualization Tools OPC UA

Industries We Serve

healthcare, icon, website icon, software, analysis, health
Healthcare & Life Sciences

Empowering healthcare with AI-driven solutions, secure patient management, and compliance-ready platforms.

enterprise, window, app, software, icon, icon for website
Enterprise Software & SaaS

Building scalable and secure enterprise applications for enhanced productivity and collaboration.

industry, icon, icon for website, software
Real Estate & Construction Tech

Transforming real estate and construction with digital tools for project management and property tech.

industry, icon, icon for website, software
Oil and Gas Production & Engineering

From feasibility study to construction and operation, we deliver intelligent solutions that streamline operations in Engineering, Procurement, Construction and Operation for Oil&Gas industry.

Let’s talk about how we can modernize your CAD workflows

38 Middlehill Road,
Wimborne, BH21 2SE