How to Convert AutoCAD to IGES?
The fastest, most reliable way to export AutoCAD drawings to IGES is here - a clean, proven 3-step process built for results:
📥 Install Automesher Application
Download and install Automesher Application for AutoCAD, BricsCAD, GstarCAD, or ZWCAD - it adds the AmExportMesh command needed to export IGES files directly from AutoCAD drawings. Restart your CAD software after installation to load the plugin.
▶️ Run IGES Export Command
Type AmExportMesh in the command line and press Enter. Select the 3D entities you want to export from the AutoCAD model space - supported types include Polyface Mesh, Polygon Mesh, 3D Solid, and 3D Face - then press Enter again to confirm the selection.
💾 Save as IGES File
In the save dialog, select IGES (*.igs, *.iges) as the output format, choose your destination folder and filename, then click Save. Automesher converts the selected AutoCAD entities and writes them to your file.
AutoCAD DWG File Format - Convert DWG Drawings
AutoCAD, developed by Autodesk, is an industry-leading CAD software known for its precision, versatility, and native support for the DWG file format. DWG files are the standard format for storing 2D and 3D design data, widely used in architecture, engineering, construction, and manufacturing industries worldwide.
Key Features of AutoCAD and DWG Files
- Comprehensive CAD Tools: Create professional 2D technical drawings and detailed 3D models using AutoCAD’s robust drafting and modeling capabilities.
- DWG File Compatibility: Work directly with native .dwg files to ensure maximum data accuracy, cross-platform collaboration, and version control.
- Custom Automation: Automate repetitive tasks and customize your workflow using AutoLISP, ObjectARX, and custom scripts for greater efficiency.
- Dynamic Blocks & Parametric Design: Use smart blocks with adjustable parameters to simplify complex designs and speed up drawing creation.
Convert DWG Files to 3D and GIS Formats
Extend the power of AutoCAD with our Automesher Application and Automapki Application. These plugins allow seamless import and export of 3D model formats like STL, OBJ, SKP, FBX, and STEP, as well as geospatial formats including SHP, KML, and GeoJSON. Enhance your DWG projects by integrating 3D models and GIS data directly into your AutoCAD environment.
Convert DWG files and integrate real-world data into your CAD projects with ease - unlock new design possibilities and streamline your BIM and GIS workflows with our powerful AutoCAD file conversion tools.
IGES File Format - Initial Graphics Exchange Explained
The IGES (Initial Graphics Exchange Specification) file format is widely used across CAD (Computer-Aided Design), CAM (Computer-Aided Manufacturing), and CAE (Computer-Aided Engineering) industries for transferring 3D models and complex designs between different software platforms. Developed in the 1980s and standardized by ANSI and ISO, IGES remains a crucial, legacy-neutral format for 3D data exchange, ensuring long-term interoperability.
What is an IGES (.IGS) File?
IGES files store detailed 3D CAD data using a text-based format that can represent wireframes, surfaces, and solid models. It enables seamless sharing of geometric information without dependency on proprietary software, making it ideal for collaborative projects across engineering, manufacturing, and design fields.
Key Features of the IGES/IGS Format
- Text-Based Geometry Storage: All geometric and structural data is saved in human-readable ASCII text, allowing easy manual editing but often resulting in larger file sizes for complex designs.
- Color Information: IGES supports color at the assembly level, preserving important visual distinctions between different components and parts in a model.
- Transparency Limitations: Unlike newer 3D file formats, IGES does not support transparency (alpha channels), meaning that opacity settings in original designs are not retained after export.
IGES/IGS File Conversion and Processing
Autoconverter offers complete read and write support for IGES files using the Open Cascade technology stack, ensuring full compatibility with the latest IGES specifications. It processes IGES data as triangulated mesh geometry for maximum compatibility. For workflows requiring preservation of native NURBS surfaces and smooth 3D definitions, we recommend using Autoshaper, which maintains original surface accuracy throughout the conversion process.
AutoCAD vs IGES - Comparison
The table below summarizes the key differences between AutoCAD and IGES file formats for 3D modeling, CAD, or GIS workflows.
| Feature | AutoCAD | IGES |
|---|---|---|
| Extensions | .dwg, .dxf | .igs, .iges |
| Name | AutoCAD Drawing | Initial Graphics Exchange Specification |
| Versions |
|
🚫 |
| Textures | ✅ | ❌ |
| Colors | ✅ | ✅ |
| Geometry Components | ✅ | ❌ |
| User Attributes | ✅ | ❌ |
| Quads | ✅ | ❌ |
| Importers | ||
| Exporters |
More AutoCAD and IGES Conversion Guides
Take the complexity out of AutoCAD to IGES conversion with our expert guides below. Everything you need for accurate AutoCAD drawings conversion is right here:
- 📤 SKP to IGES: Export IGS from SketchUp (.skp) File
- 📤 Export AutoCAD 3D Models to STL, OBJ, SKP, STEP, 3DM & More
- 🌀 Reconstruct Surface from SKP Mesh File: SketchUp to NURBS
- 📤 Export SHP from AutoCAD: Convert DWG to SHP Shapefile
- 📤 AutoCAD 3D Import & Export: OBJ, STEP, STL, IGES, SKP, FBX
👉 From AutoCAD to IGES - conversion made effortless. Use our AutoCAD to IGES converter now and experience the speed, accuracy, and simplicity your projects deserve.