Thank you Hans for enumerating further about the various types of precreases etc… tho i was only wondering about the (mainly) geometric models which have a dozen or so precreases. Then a collapse. And that’s it. Not the other kinds of processes! I guess I’ve been folding several of those lately so they’ve been on my mind !
Thank you for all the ideas around this theme… tho only some ideas for what the genre could be called. It ain’t easy to name things! As they say — Keep on keeping on —- whether it be precreasing or creasing! 🤣 Best, Vishakha . On Apr 27, 2026, at 12:23, Papirfoldning.dk <[email protected]> wrote: > On 27 Apr 2026, at 06.40, wanderer via Origami > <[email protected]> wrote: > ... folded couple models that were the kind where one precreases precreases > precreases and then collapses to the finished model. > ... it’d be really nice to have a name for such models. That reminds me of a joke by Robert Lang about some of his models: "They are really easy. Only three steps: Precrease, collapse, shape" (then presents diagrams with dozens or hundreds of steps...). I have speculated the same about the need for calling them something. I think I have seen them called simply precrease-collapse models. I have called the opposite for progressive models: models where every fold progresses towards the result. <snip>
