What are free tools for cut polygons 3D models?

Free tools for cutting polygons in 3D models include Blender, MeshMixer, and Windows 3D Builder—all let you split, trim, or separate meshes for 3D prints, game assets, or hobbyist designs. - **Blender**: Uses the "Knife Tool" for precise, flexible cuts—great for detailed edits like custom game assets. - **MeshMixer**: Intuitive drag-and-drop for splitting/merging—ideal for prepping 3D prints (e.g., removing supports). - **Windows 3D Builder**: Straightforward "Split" tool—beginners-friendly for basic customizations (e.g., tweaking downloaded models). New users should start with 3D Builder (simple) or Blender (learnable precision)—both are free and easy to pick up.