Mesh Unfolder is a specialised engineering 3D CAD system for importing and unfolding sheet metal mesh designs for fabrication or manufacture. Meshes are imported from dxf files created in a CAD system such as Autocad. These meshes are imported via dxf files and unfolded (i.e. flattened) to produce the best result flat 2D representation. The imported mesh is effectively a 3D surface. When unfolded it is processed into a 'least tension' 2D pattern shape that evens out the deformation required to form the 2D pattern into the 3D shape. The program can be used to unfold meshes for many different applications, such as boat panel, shoes, tents, aerofoils etc. Various parameter options are attached to the mesh and can be altered by the user to control the unfolding process.