🔄 Convert COB to STL: Caligari to 3D Printing File Converter

How to Convert COB to STL?

Whether you're new to COB to STL conversion or a seasoned professional, our step-by-step guide and reliable tool make the process effortless:

  1. 📥 Download and Install

    Download and install Autoconverter on your system. This application will let you to convert your COB files to STL format - no additional CAD software required.

  2. 📂 Open Your COB File

    Go to File > Open… to load your COB file (*.cob, *.scn), or drag and drop it directly into the application window. The model loads into the 3D viewport for inspection before converting.

  3. 💾 Save As STL Format

    Go to File > Save As…, select STL (*.stl) as the output format, choose your destination folder and filename, then click Save to complete the COB to STL conversion.

COB Caligari TrueSpace COB File Format

The COB file format was developed by Caligari Corporation for its 3D modeling and animation software, TrueSpace. COB files store complete 3D scene data including geometry, materials, textures, lights, and animation. Though TrueSpace is now discontinued, COB remains an essential format for preserving and converting legacy 3D content.

Key Features of COB Files

  • Full 3D Scene Storage: COB files encapsulate entire scenes with objects, lighting, cameras, and animation data.
  • Two Format Variants:
    • ASCII COB: Human-readable format ideal for manual inspection and debugging.
    • Binary COB: Compact format optimized for performance and faster loading times.
  • Material & Texture Support: Includes surface colors, image textures, and basic shading information.
  • Geometry Types: Supports both NURBS-based and polygon mesh 3D models for greater flexibility.

COB File Conversion Tools

Use Autoconverter and Automesher Application to import and convert COB files into modern 3D formats such as FBX, OBJ, SKP, STEP, and SAT. Our converters retain crucial data including UV mapping, materials, and mesh topology by utilizing the Open Asset Import Library (Assimp) for accurate and reliable file processing.

Note: COB files can only be imported - exporting to COB format is not supported.

STL What is an STL File? (STereoLithography Format Explained)

The STL file format (short for STereoLithography) was developed by 3D Systems, a pioneer in the 3D printing industry, to simplify rapid prototyping and manufacturing processes. Today, STL files are one of the most common file types used in computer-aided design (CAD), digital fabrication, and additive manufacturing workflows. STL models exclusively represent 3D geometry as a triangular mesh, offering high compatibility and fast processing across various 3D printers and modeling software.

Key Features of the STL Format

  • Lightweight and Simple: An STL file contains only the coordinates of vertices and normal vectors of triangles, making it extremely easy for 3D software and printers to interpret.
  • No Textures or Materials: STL models do not store color, texture, transparency, or material information, resulting in pure geometric representations without extra attributes.
  • Two Storage Methods: STL files are available in two distinct formats:
    • Binary STL: The most popular choice due to its small file size, ideal for faster saving, sharing, and printing.
    • ASCII STL: A human-readable text format that explicitly describes each triangle but produces significantly larger files.
  • No Fixed Units: The STL format does not define units (millimeters, inches, etc.). Most programs assume millimeters by default. Our STL Files Converter can automatically handle unit adjustments during file conversion if needed.

STL File Conversion Made Easy

Looking to convert STL files into other popular 3D formats? Autoconverter and Automesher Application offer powerful, high-precision STL file conversion to formats like STEP, OBJ, and SKP. These tools allow you to:

  • Preserve mesh accuracy and surface details during conversion.
  • Batch convert multiple STL files automatically.
  • Optimize, clean, and repair STL models for 3D printing or CAD workflows.

Whether you are a 3D designer, engineer, or enthusiast, our STL converters streamline your work. Convert STL to STEP, OBJ, SKP and more - start your free trial today!

COB vs STL - Comparison

The table below evaluates COB vs STL file formats to support efficient 3D modeling, CAD, or GIS workflows.

Feature COB STL
Extensions .cob, .scn .stl
Name Caligari TrueSpace Object STereoLithography
Textures ❌ ❌
Colors ✅ ❌
Geometry Components ❌ ❌
User Attributes ❌ ❌
Quads ❌ ❌
Importers
Exporters 🚫

More COB and STL Conversion Guides

Is COB to STL conversion holding up your workflow? Our step-by-step guides below make COB files conversion smooth and efficient:

👉 Make COB and STL format conversion part of a smarter workflow. Try our COB to STL converter now and save time with precise, automated output.