The plugin’s working principle is very simple:
1) Imagine you want to fold a paper sheet
2) Take a polygonal sheet and place it on the plane XZ
3) With the knife tool or other modeling tools engrave the sheet in such a way as to obtain the polygon’s edges in correspondence of the folds of the paper
4) select the edges to fold and the polygonal area that you have to fold
5) call the Add Fold tool, an arrow indicating the direction of the fold will be created
6) set the proper size of the arrow and arrange it according to the desired orientation for folding sheet
7) repeat this process for all the folds you want to obtain
8) according to the priority of folding adjust the fold object hierarchy
9) select the polygonal sheet and call the make joint command, the arrows will be made invisible for any future changes and in their place a joint skeleton will be generated already rigged and weighed ready to be animated using the appropriate controller created by default