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How to Add Colors to STL Files

Blog  /  How to Add Colors to STL Files

How to Add Colors to STL Files

Mar 20,2024

STL files typically contain only geometric information (vertices and triangles) and don't inherently store color data. So when you only have STL files, but want to produce color 3D printed parts, you need to colorize your stl files first and export color print files that can be put into production directly . To colorize an STL file, you'll need to associate color information with the vertices or faces of the model.

(About How to generate STL file, please check it here:STL file)

General guide on how you might go about colorizing STL files:

1. Choose a 3D Modeling Software:

Use a 3D modeling software that supports color information. Blender, MeshLab, and Autodesk Fusion 360 are examples.

2. Import STL:

Open the STL file in your chosen 3D modeling software.

3. Check for Color Information:

Verify if the STL file already contains color information. Some STL files may have vertex colors or UV mapping.

4. Add Vertex Colors or Texture:

If your STL file doesn't have color information, you can manually add vertex colors or create a texture map. Follow the steps provided earlier for the specific software you are using.

5. Set Up Materials:

Create or modify materials for your 3D model. Associate colors with the materials or UV mapping.

6. Export in a Color-Supported Format:

Choose an export format that supports color information. Formats like VRML (.wrl) or PLY (.ply) often support color. Some 3D printers may also accept formats like OBJ (.obj) with associated material files.

Tips:JLC3DP full color printing only supports 3MF file