This is Matinmat app to help customers figuring out how to assemble all the pieces present in their projects made of sheets of foam. The original model has been split into a collection of numbered blocks, a 3D view of the blocks is the standard view. Each block appears of a different color and numbers appear over each block. The user can later press on one of the blocks to get the detail of the pieces that need to be stacked to create that particular block. The app can visualize .STL and .OBJ formats too.