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Core Technological Specialization

CAD Customization & Application Development

RAP develops custom CAD commands, plugins, applications and workflow solutions for engineering companies, CAD software vendors and technology organizations.

Supported Platforms

High-Performance Customization Across Leading CAD Engines

We leverage deep native APIs to automate repetitive drafting tasks, enforce drafting standards, and connect CAD models directly with enterprise databases.

AutoCAD Customization

Deep development using C#/.NET, ObjectARX (C++), AutoLISP, Visual LISP, and DCL dialogs. Custom command creation, drawing validation, and Excel-to-CAD sync.

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BricsCAD Customization

C#/.NET API development, BRX/DRX modules, and LISP routines. Entity manipulation, block attribute automation, and legacy plugin modernization.

View BricsCAD Services →

IntelliCAD Customization

Tailored LISP programming, API integration, and custom command development for IntelliCAD-based platforms and OEM solutions.

View IntelliCAD Services →
Commercial Software Engineering

Product Development Portfolio

Beyond internal productivity macros, RAP Technologies architects and builds complete commercial-grade CAD plugins, industry engineering extensions, and Bluebeam PDF takeoff toolsets from core algorithmic design to global release.

Core Technologies
.NET / C# VC++ / C++ ObjectARX Visual LISP DCL Dialogs Bluebeam API
Supported CAD Engines
Autodesk Bricsys IntelliCAD
Featured Commercial Partner & Flagship Suite

CADdirekt (Sweden) is a market-leading commercial provider of specialized engineering software suites for Nordic architecture, electrical systems, fire protection, and HVAC installation. RAP Technologies serves as their specialized product development and software engineering partner, continuously engineering their 2026 flagship line across DWG and Bluebeam environments.

13+ Commercial Products
2026 Current Release
DWG & PDF Dual Environments

CAD (DWG) Commercial Applications

DWG Native Plugins • 4 Products
CADdirekt Brand 2026 Badge

CADdirekt | Brand 2026

Fire Safety • CAD (DWG)

Complete Swedish fire safety and evacuation drafting solution. Features compliant symbol libraries, automatic escape route distance tracing, and fire boundary zoning.

CADdirekt EL 2026 Badge

CADdirekt | EL 2026

Electrical Systems • CAD (DWG)

Full-cycle electrical drafting application. Automates power distribution schematics, conduit paths, luminaire layouts, circuit numbering, and automated panel schedules.

CADdirekt Tele 2026 Badge

CADdirekt | Tele 2026

Telecom & Networks • CAD (DWG)

Structured cabling and telecommunications infrastructure plugin. Automates server rack elevations, RJ-45 port numbering, patch schedules, and fiber pathway layouts.

CADdirekt VVS 2026 Badge

CADdirekt | VVS 2026

HVAC & Piping • CAD (DWG)

Parametric HVAC and plumbing engineering suite. Supports 2D/3D ductwork and piping design, automatic valve sizing, airflow calculations, and instant BOM takeoff.

PDF (Bluebeam Revu) Toolsets & Estimation Suites

Bluebeam Revu Profiles • 9 Products
APD-Plan 2026 Badge

APD-Plan 2026

Site Logistics • PDF (Bluebeam)

Worksite disposition planning toolset for Bluebeam. Enables drag-and-drop crane radiuses, access roads, materials storage zones, and worker safety boundaries.

TA-Plan 2026 Badge

TA-Plan 2026

Traffic Safety • PDF (Bluebeam)

Traffic arrangement and road safety planning extension. Pre-configured with official Swedish Transport Administration symbols, barricades, detour signs, and buffers.

Brandlarm 2026 Badge

Brandlarm 2026

Fire Alarm Systems • PDF (Bluebeam)

Fire alarm takeoff and verification profile. Features intelligent counting tools for smoke, thermal, and optical detectors with automatic cable loop distance calculations.

Brandskydd 2026 Badge

Brandskydd 2026

Fire Safety • PDF (Bluebeam)

Fire protection equipment takeoff tool set. Includes standard markups for fire extinguishers, hose cabinets, fire blankets, gas extinguishing systems, and evacuation signage.

Säkerhet 2026 Badge

Säkerhet 2026

Security & CCTV • PDF (Bluebeam)

Physical security and access control estimation suite. Facilitates CCTV camera angle visualizers, PIR motion sensors, card readers, electric locks, and alarm zones.

El 2026 Badge

El 2026

Electrical Takeoff • PDF (Bluebeam)

Comprehensive electrical quantity takeoff toolset. Quickly measures linear cable tray lengths, counts light switches, sockets, and distribution boxes with automatic price linking.

Sol & Vind Elproduktion 2026 Badge

Sol & Vind Elproduktion 2026

Renewable Energy • PDF (Bluebeam)

Renewable energy estimation toolset. Specializes in rooftop photovoltaic panel array takeoffs, string cabling, solar inverter sizing areas, and wind turbine layout schematics.

VVS 2026 Badge

VVS 2026

HVAC & Plumbing • PDF (Bluebeam)

Heating, ventilation, and sanitation takeoff profile. Accurately measures duct lengths by diameter, pipe runs by material, air terminal counts, and sanitary appliance schedules.

Geoenergi 2026 Badge

Kyla & Värme (Geoenergi) 2026

Geothermal Energy • PDF (Bluebeam)

Geothermal heating and cooling energy design toolset. Designed for ground-source borehole field layouts, manifold piping runs, and radiant floor heating loop measurement.

Core Capabilities

Consolidated Enterprise Capabilities Grid

Architected for high-margin customization contracts (€1M+). We engineer standalone desktop suites, cross-platform plugins, cloud CAD automation, and live CAD-to-ERP backbones.

In-Process Runtime

1. Engineering Desktop & In-Process Suites

Standalone C# / WPF MVVM desktop applications, safe in-process CAD threading, and proprietary licensing engines.

  • Safe in-process multithreading and memory isolation
  • Hardware fingerprinting & machine-locking engines
  • WPF MVVM rich interactive desktop architectures
View Desktop Suites →
Cross-CAD Architecture

2. Multi-CAD Plugins & AutoCAD LT Automation

Unified cross-CAD API across AutoCAD, BricsCAD, ZWCAD, GstarCAD, ARES, DraftSight, Inventor, and SolidWorks.

  • AutoCAD LT 2024+ Automation: AutoLISP & DCL routines saving full-license overhead
  • Cross-platform plugin compilation abstraction
  • Single codebase multi-CAD deployment
View Multi-CAD Plugins →
Prefab / BIM API

3. Revit API & Prefabrication BIM Automation

High-throughput shop drawing automation, multi-view generation, rule-based dimensioning, schedule filtering, and dual PDF/DWG export pipelines.

  • Automated plan, elevation & section generation
  • Rule-based dimensioning & schedule filtering
  • Dual PDF/DWG batch pipelines for modular & precast
View BIM Automation →
Cloud CAD / APS

4. Autodesk Platform Services (APS / Forge)

Headless Cloud Design Automation (running Revit, Inventor, AutoCAD in the cloud), Web 3D Viewers, and bidirectional synchronization.

  • Headless Cloud Design Automation API
  • High-fidelity Web 3D CAD/BIM Viewers
  • Autodesk Construction Cloud (ACC) integrations
View Cloud CAD →
Enterprise Middleware

5. CAD-to-Enterprise Middleware (ERP / PLM)

Connecting CAD/BIM ecosystems directly with enterprise backbones-SAP S/4HANA, Salesforce, Teamcenter, and Windchill.

  • SAP S/4HANA & Salesforce live CAD/BIM connectors
  • Automated Bill of Materials (BOM) & MTO sync
  • Engineering Change Order (ECO) pipelines
View Enterprise Middleware →
Parametric CPQ

6. Parametric Rules & Configurator Engines (CPQ)

Rules-based 3D parametric assembly generation, dynamic block manipulation, and automated sales-to-manufacturing proposal generation.

  • Rules-based 3D parametric assembly generation
  • Sales-to-manufacturing automated BOM pipeline
  • Dynamic block parameter manipulation & constraint solving
View Configurator Engines →
Code Modernization

7. Legacy Code Migration (ObjectARX → BRX / .NET)

Porting unmanaged C++/ObjectARX, legacy VBA, and LISP routines into modern, high-performance .NET and BricsCAD BRX assemblies.

  • Porting unmanaged C++ ARX to modern 64-bit .NET
  • Direct porting to BricsCAD BRX assemblies (Official Partner)
  • Retiring fragile VBA macros & stabilizing legacy routines
View Code Migration →
AI / Vision

8. AI-Powered Engineering & Schematic OCR

Deep learning (YOLO) computer vision for engineering symbol recognition on scanned drawings, automated BOM/MTO extraction, and LLM-driven CAD agent tools.

  • YOLO deep learning for engineering symbol recognition
  • Automated P&ID & schematic BOM/MTO extraction
  • Raster-to-vector semantic reconstruction pipelines
View AI Engineering Services →
Python Ecosystem

9. Python Based Plugin for AutoCAD, BricsCAD, ZWCAD

Build and extend CAD workflows with Python. Develop plugins that work seamlessly across AutoCAD, BricsCAD and ZWCAD.

  • Python API integration & plugin development
  • Cross-platform support for AutoCAD, BricsCAD & ZWCAD
  • Automate drawings, workflows and custom tools
View Python Plugin →
Featured Innovation

In-Process CAD-AI Agents & Dynamic Runtimes (MCP / Python)

RAP Technologies delivers zero-latency in-memory execution running directly inside CAD process RAM (acad.exe, bricscad.exe, zwcad.exe). By uniting native C++ ARX/BRX wrappers with Python and the Model Context Protocol (MCP), we allow modern AI agents to interact directly with live CAD sessions.

<0.001 ms In-Memory Execution

Direct C++ ARX/BRX memory bindings executing geometry algorithms natively without COM marshaling delays.

CAD-MCP Protocol Integration

Connect Claude, Cursor, Gemini, or on-premise local LLMs directly to live CAD drawing sessions for intelligent entity manipulation.

Autonomous Drafting Agents

Conversational agents that inspect drawing compliance, audit layers, extract part data, and draft parametric entities in real time.

Schedule Enterprise Consultation View AutoCAD Services →

Discuss Your CAD Customization Project

Contact our CAD software engineers to evaluate your drawing automation requirements and receive a formal technical proposal.

Request a Proposal Explore AutoCAD Customization