In Paul Jackson’s book “Complete Pleats”, anything with alternating valley-mountain folds are pleats.
So I don’t think there is a special name for pleats that form spirals or twists. Winnie Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows From: Diana Lee via Origami<mailto:[email protected]> Sent: Tuesday, 20 September 2022 1:17 PM To: [email protected]<mailto:[email protected]> Subject: [Origami] What to call a diagonal pleat fold eg. nautilus Hi, do you still call a fold a "pleat fold" if the folds are on the diagonal instead of exactly parallel to each other? For example in the origami nautilus. Example: 1) start with a 4"x4" paper 2) Fold into quarters, divide the paper into 4 sections of size 1"x4" 3) turn paper over 4) make 4 diagonal folds within each of the 4 sections. 5) Collapse to form a spiral or twist. What do you call this twisted pleat fold? Thank you, Diana
