▲
Right Logo
Menu

Electrical Wiring Harness CAD Design Services

ECAD Engineering Solutions for Smart Electrical System Development

Designing Reliable, Optimized and Manufacturing-Ready Wiring Harness Systems

NESTech provides comprehensive Electrical CAD and Wiring Harness Engineering services for automotive, aerospace, off-highway, rail, industrial equipment, and special vehicle manufacturers. Leveraging extensive domain expertise, advanced ECAD technologies, and proven engineering methodologies, we support OEMs and suppliers in developing efficient, manufacturable, and standards-compliant electrical systems.

Our engineers specialize in schematic creation, 3D harness routing, formboard development, electrical component management, and manufacturing documentation. Through an integrated ECAD-MCAD approach, we help organizations reduce development time, improve design accuracy, and accelerate product realization.

We optimize resources using a shared services model, leveraging software tools like CAD-based electrical systems to deliver value and scalability.

Our ECAD Capabilities

🔌

Wiring Harness Design

Complete wiring harness design from concept to manufacturing-ready documentation

harness
📐

Schematic Development & Layout

Electrical schematic creation, circuit design, and layout optimization

schematic
🧵

3D Harness Routing

Intelligent 3D routing and bundling of harness assemblies within mechanical envelopes

3D routing
📋

Flattened Harness Models & Form Boards

Flattened harness models and form boards for manufacturing and assembly

form boards
📊

BOM & Manufacturing Drawings

BOM generation and detailed harness manufacturing drawings

BOM
🔄

2D to 3D Harness Conversion

Migration and upgrade of legacy 2D harness data to intelligent 3D models

conversion
🔗

ECAD–MCAD Integration

Seamless integration between electrical and mechanical design environments

integration
💡

Legacy Harness Modernization

Upgrade and transformation of legacy harness data to current CAD platforms

modernization
⚡ harness

3D Wiring Harness & Routing Design

3D Wiring Harness Design creates a virtual model of electrical wiring systems within a CAD environment. It accurately represents routing paths, connector locations, cable bundling, and mounting provisions within the physical confines of a product — usually vehicle or machinery. Used in automotive, aerospace, rail, and heavy equipment manufacturing.

Key Aspects

  • Connector and Terminal Placement: Defining exact spatial positions of connectors and terminals.
  • Routing Path Definition: Designing optimal cable paths that avoid interference and reduce stress.
  • Bundling and Clamping: Specifying clamps, clips, and brackets to secure harnesses.
  • Integration with Mechanical Layout: Aligning routing with mechanical structure and service zones.
  • Harness Flattening for Manufacturing: Converting 3D model to 2D form board layout.
  • Validation and Simulation: Checking bend radii, slack, and tolerance zones.
3D wiring harness
wiring harness benefits
✅ benefits

Benefits of 3D Wiring Harness Design

  • Improved Accuracy: Ensures accurate fitment within complex 3D assemblies, minimizing trial-and-error.
  • Early Issue Detection: Identifies design conflicts (sharp bends, interferences) before prototyping.
  • Reduced Development Time: Automates processes, reduces rework, speeds iterations.
  • Better Collaboration: Integrates electrical and mechanical teams in a unified 3D environment.
  • Optimized Material Usage: Accurately estimates cable lengths and quantities, reducing waste.
  • Streamlined Manufacturing: Generates manufacturing drawings and BOMs directly from the 3D model.
  • Supports Variant Management: Easily create harness variations for different models or requirements.
🏭 projects

Projects Executed & Services

Wiring Harness Design

  • Preparing wiring diagrams in Pro/Diagram and RSD.
  • Concept routing design tailored for divisions and vehicle models.
  • Full harness routing integrated with truck platforms.
  • Developing family tables for harness variants based on dimensions.
  • Creating manufacturing drawings with form board layouts and BOMs.
  • Arrangement drawings to visually demonstrate routing.

Top Vehicle Assembly (TVA)

  • Analyzing TVA using skeleton-based assembly and functional divisions via CORE and Agile.
  • Component placement and assembly corrections as per division structure.
  • Ensuring compliance of TVA assemblies with standardized data structures.

Services Offered

  • Wiring Harness Design · Vehicle Schematic Design
  • Harness 3D Routed Design · Flattened Harness Model (Form Board)
  • Harness Drawing Creation · 2D to 3D Harness Conversion
  • Harness Group Model and Drawing Creation
  • Electrical Component Database Creation · Harness Product Build Support
factory harness projects

Our Electrical CAD Capabilities

Electrical Wiring Harness Design

Development of complete wiring harness systems from concept to production.

  • Vehicle harness design
  • Cable assembly design
  • Circuit development
  • Electrical architecture definition
  • Harness packaging studies
  • Variant management

Schematic Capture & Vehicle Electrical Design

Create logical electrical systems using industry-standard methodologies.

  • Vehicle schematic diagrams
  • Functional circuit design
  • Power distribution systems
  • Signal routing
  • Electrical connectivity definition
  • Symbol library management

3D Harness Routing & Packaging

Develop optimized harness layouts directly within the vehicle or product environment.

  • Connector positioning
  • Cable routing
  • Packaging optimization
  • Serviceability studies
  • Interference analysis
  • Installation feasibility assessment

Form Board Design

Convert routed harnesses into manufacturing-ready flattened layouts.

  • Harness flattening
  • Connector positioning
  • Splice definition
  • Bundle management
  • Manufacturing layouts
  • Production documentation

Harness Manufacturing Documentation

Generate detailed engineering deliverables for production.

  • Harness drawings
  • Connector tables
  • Circuit tables
  • Splice tables
  • Terminal schedules
  • Manufacturing BOMs

Electrical Component Database Development

Build centralized libraries to improve engineering productivity and standardization.

  • Connector libraries
  • Terminal databases
  • Wire specifications
  • Supplier components
  • Reusable part catalogs
  • Searchable repositories

ECAD–MCAD Integration

Enable seamless collaboration between electrical and mechanical engineering teams.

  • Integrated product development
  • Concurrent engineering
  • Design synchronization
  • Packaging validation
  • Change management
  • Digital continuity

Harness Conversion & Legacy Data Support

Modernize electrical data and support product sustainment activities.

  • 2D to 3D harness conversion
  • Reverse engineering
  • Legacy data recreation
  • Documentation updates
  • Product maintenance support
  • Variant creation

ECAD Case Studies

Flexible Piping

Flexible Piping

Flexible piping design with all suitable connections are designed, further flattened drawing created, Construction Equipment, US Client.

Flexible 3D Routing

Flexible 3D Routing

Piping are flexibly routed through available space with clamps and flattened drawing created for the same

Piping 3D Routing

Piping 3D Routing

3D flexible piping routing done for material handling machine's engine.

3D Harness Routing

3D Harness Routing

3D flexible wiring harness routing done for an engine to an US based client

NESTech Services and Products

Why Choose NESTech as your CAD CAE Partner?

+ Drawings Created
+ Simulations done
+ Team Members
+ Years of Experience
Experience Icon

RICH EXPERIENCE

We bring 25+ years of rich experience to every project, ensuring exceptional results and unparalleled reliability.

Delivery Icon

ON-TIME DELIVERY

With meticulous planning, streamlined processes, and a dedicated team, we ensure that every project is completed promptly and efficiently

Teamwork Icon

EXCELLENT COLLABORATION

We foster a culture of teamwork, communication, and mutual respect, ensuring that every project benefits from the diverse perspectives and expertise of our team members.

Cost Icon

COST EFFECTIVENESS

With a multitude of projects Completed and catering to various industries, we have demonstrated excellent business results at lower cost with our domain expertise.

Some of the Cast-Designer Software Customers