Using Sets

Using Sets

A set is a collection of shells from the origami. If a set is defined then rather than folding the entire origami, just the shells in the set will be considered for folding. The set could contain a single shell from the origami or it could contain the whole origami.

There are two methods for selecting sets: Basic select and Advanced select . It is strongly recommended that you use Basic select as this is much simpler. If this cannot do what you need (which is unlikely) then use the Advanced select option.

The sets works by using sets of shells. These can be created inside the airbag folder, or if your model contains sets already they are available for use. To pick an existing set use the PICK EXISTING SET button. You can then choose from the list of available sets.

To see the current set selection you can use the SKETCH button. This will sketch which shells are in the set on the graphics window. You can reset the selection to the whole origami by pressing RESET TO WHOLE ORIGAMI .

To create a new set you can use CREATE NEW SET . This will start the standard set creation panel. Once the set has been created it will automatically be chosen for folding.

Alternately you may use QUICK SHELL SET to create the set at highest label + 1.

It is important to realise that just because a shell is in a set does not mean that it will definitely be folded. The shells that are in the set are the ones that will be considered for folding. As an example consider the first fold of an airbag where we have defined the set to be the entire origami. When the fold is actually performed the folder checks all the shells in the set. Some of these shells will be on the wrong side of the fold line and will be left in their original positions. Only the ones which are on the correct side of the foldline are actually folded. So even though all the shells were considered for folding, the folder actually only folded the shells on the correct side.