This problem could be solved by simply scoring one side of the material, then flip the sheet and score the other. When the desired shape has both convex and concave zones, a cutting pattern should be placed on both sides of the material. The below image shows sections of the folded material and cut pattern on the material before the fold. It is necessary to cut out some portion of flat and stiff material to fold.
#Mesh unfolder manual
Is way of grouping and routing optimize fabrication process by reducing machining hours, manual folding and assembly hours, and material to be used ? To fold gourped polygons, you must make a score line on the material using machine. Polygons can be grouped(routed), then unfolded to make a machining path. Import mesh > Create mesh graph > Find minimum spanning tree > Cut and unrollĪlgorithm for 2D irregular-shaped nesting problem based on the NFP algorithm and lowest-gravity-center principleĪssume that you are making polyhedron object with flat sheet material. Sample test using Grasshopper and Ivy plug-in. Parameters to select mesh for splitting 2D polygons However, by making this from scratch, I am looking forward to learning 3D computational geometry and finding the optimal solution. Many commercial programs have existing functions for creating a mesh and unfolding or nesting 2d polygons. However, if a user wants to make a shape that has a bigger volume than the print bed size, width, length, and height, the user should do this process in other 3D softwares, such as Fusion and Rhino, to split the whole model into several parts. The machine often allows for size re-scaling of the inputted form to adjust to the machine bed size.
#Mesh unfolder software
As a result output, the program provides an optimized 2d layout of polygons that can maximize the usage of the material for laser cutting and minimize operation time for 3D printing.Ĭommercial 3D printer software provides layer slicing functions that convert 3d shapes to multiple layered machine paths to print the object.
This project aims to develop a program that provides an easy solution to make an object bigger than fabrication machine's print bed size, 3D printer, vinyl cutter, and laser cutter, by converting inputted 3D mesh into ready-to-print grouped 2D polygons. What is the optimal selection of mesh edges to be cut for fast fabrication and easy assembly? Introduction and Brainstorming | April 1, 2020 A program unfolds mesh object, cut into parts, and nest parts into machine bed size.
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