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This paper presents an efficient and realistic approach to seam the 2D panels together into a 3D garment mesh. Our main goal is to be able to seam any kind of panels together robotically without considering the variation of style and geometry. In particular, we are discussing difficult situations with respect to deformations and variation of sewing forces. Based on the mass-spring model, two-dimensional panels are seamed together along the seams and then three-dimensional garment meshes are built. Our main contribution is that we add five pairs of sewing forces avoiding undesirable sharp folds. Our approach provides a useful design tool to create 3D garment mesh directly in the 3D space through 2D patterns. It is reasonably easy to incorporate our 3D mesh construction techniques into existing 3D graphics systems because we use standard triangular mesh structures and force-based mass-spring model for cloth animation.