Cleaning up a 3D scan using Blender is a process that transforms raw scan data into a polished, usable 3D model. This process is essential for various applications such as 3D printing, animation, game development, and virtual reality.

In this guide, we’ll walk you through the steps necessary to clean up a 3D scan using Blender, covering importation, initial inspection, mesh cleanup, retopology, texture improvement, and final export.

Step 1: Import the 3D Scan

  1. Open Blender.
  2. Go to File > Import and select the format of your 3D scan (e.g., OBJ, STL, PLY).
  3. Navigate to your file location and import the scan.

Step 2: Initial Inspection

  1. Zoom and Rotate: Use the mouse to zoom in and rotate the model, inspecting it from different angles.
  2. Wireframe Mode: Press Z to toggle between solid and wireframe view modes. This helps in seeing the underlying mesh structure.

Step 3: Mesh Cleanup

  • Remove Loose Geometry:
    • Enter Edit Mode by pressing Tab.
    • Select all vertices with A.
    • Go to Mesh > Clean Up > Delete Loose.
  • Fill Holes:
    • In Edit Mode, select the edges around a hole.
    • Press F to fill the hole with a new face.
  • Remove Doubles:
    • In Edit Mode, select all vertices with A.
    • Press M and choose By Distance.

Step 4: Retopology

  • Add a New Mesh:
    • Create a new mesh (e.g., a plane) and position it near the scan.
    • Use Shrinkwrap modifier to project the new mesh onto the scan.
  • Manual Retopology:
    • Enter Edit Mode for the new mesh.
    • Use the Knife Tool (K) to cut new edges and create cleaner topology.
    • Snap vertices to the surface of the scan using Snap tool (Shift + Tab).
  • Using Retopology Tools:
    • Blender has built-in retopology tools like Bsurfaces and F2.
    • Add these tools from the Add-ons section in Preferences.

Step 5: Detail Enhancement

  • Sculpting:
    • Enter Sculpt Mode to refine and add details.
    • Use brushes like Smooth, Inflate, and Pinch.
  • Subdivision Surface Modifier:
    • Add a Subdivision Surface modifier.
    • Adjust the levels for optimal detail.

Step 6: Texture Improvement

  • UV Unwrapping:
    • Select your model and enter Edit Mode.
    • Press U and choose a suitable unwrapping method (e.g., Smart UV Project).
    • Use the UV Editor to adjust and optimize the UV layout.
  • Baking Textures:
    • In Render Properties, select Cycles as the render engine.
    • Bake textures like Ambient Occlusion, Normal, and Diffuse.
  • Texture Painting:
    • Enter Texture Paint mode.
    • Use brushes to paint directly onto the model.

Step 7: Final Cleanup

  • Normals:
    • In Edit Mode, select all vertices.
    • Press Alt + N and choose Recalculate Outside.
  • Decimate Modifier:
    • Apply a Decimate modifier.
    • Adjust the ratio to balance quality and performance.
  • Check for Non-Manifold Edges:
    • In Edit Mode, select Select > Select All by Trait > Non-Manifold.

Step 8: Export the Cleaned Model

  1. Go to File > Export.
  2. Choose the desired format (e.g., OBJ, STL).
  3. Adjust the export settings, ensuring the correct scale and orientation.
  4. Save the file to your desired location.

Outsource to Invedus for Quality and Affordability

While Blender is a powerful tool for cleaning up 3D scans, the process can be time-consuming and require a high level of expertise. If you’re looking to save time and ensure professional quality, consider outsourcing to Invedus.

Invedus offers affordable and high-quality 3D modeling services. Whether you need a single 3D model designer or a dedicated team, Invedus provides flexible solutions to meet your specific needs. Invedus has experienced professionals who use the latest techniques and tools to deliver impeccable results.

By outsourcing to Invedus, you can focus on your core activities while ensuring your 3D models are in expert hands. Invedus team model ensures collaborative efficiency, while individual designers offer personalized attention to detail.


Cleaning up a 3D scan using Blender involves several steps, from importing and inspecting the scan to retopology, detailing, and texture improvement.

Each step ensures that the final model is clean, optimized, and ready for use in various applications. With practice, these steps become more intuitive, allowing for efficient and high-quality 3D model cleanup.

Blender’s powerful tools and flexibility make it an excellent choice for this task, providing a comprehensive solution for transforming raw scan data into polished, usable assets.

For those seeking to streamline the process, outsourcing to Invedus can provide the quality and affordability needed to meet your project goals efficiently. Contact Invedus Today!

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