MeshFlatten is a standalone application. This software can unfold a 3D mesh to be a 2D mesh, turn 3D meshes to be 2D format by a few clicks.

MeshFlatten Features:
1. Import .stl file;
2. Unfold 3D mesh to be a 2D mesh;
3. Export the 2D mesh to .stl file;
4. Export the boundary line of the 2D mesh to .igs file;
5. Easy to use. Just click one button to unfold 3D mesh to be 2D mesh.

How to use:
Step 1 : Open the sample file pipe.stl .
Step 2: Click menu 'Mesh->Unfold mesh', the imported 3D mesh will be unfolded.
Step 3: Uncheck menu 'View->mode->Show original 3D mesh' to hide the original 3D mesh model, the unfolded mesh was shown more clearly. Also you can uncheck menu 'View->mode->Show box' to hide the box and uncheck menu 'View->mode->Show Axis' to hide the axis.

The license of this software is Free Trial Software, the price is $199.00, you can free download and get a free trial.