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  1. 3D Design - Tinkercad

  2. Free 3D Modeling Software | 3D Design Online | SketchUp Free ...

  3. Sketchfab - The best 3D viewer on the web

  4. 3D Design Software | 3D Modeling & Drawing | SketchUp | SketchUp

  5. Cults・Download free 3D printer models・STL, OBJ, 3MF, CAD

  6. Tinkercad - From mind to design in minutes

  7. Thingiverse - Digital Designs for Physical Objects

  8. 3D Warehouse

  9. blender.org - Home of the Blender project - Free and Open 3D

  10. 3D Design Software | Tools & Free Resources | Autodesk