One sheet, parallel rhythm
Accordion is a family of parallel mountain and valley creases on a rectangle. Changing panel count, depth, or size updates the same connected sheet. The preview uses exact rigid-panel transformations.
GO ON. PLAY WITH YOUR PAPER
Little rhythm.
Big pleats.
Meet Accordion. Parallel creases on one rectangular sheet.
Start folded. Pull it flat. Find your favorite in-between.
Accordion family
Original code · no AI used
RIPPLE / ACCORDIONDrag to orbit · scroll to zoomRed dash-dot: mountain · Blue dashed: valley · Black: cut boundary
Flat sheetFolded preview
CREASES9
PANEL WIDTH24 mm
FOLDED WIDTH147.8 mm
FROM SCREEN TO SHEET
Take your pattern with you
Same panels. Same creases. Your current pose.
SVG prints at actual size on A4 landscape, with a 20 mm scale check. FOLD contains both the flat pattern and the displayed 3D pose.
A study, with honest edges
The unfold slider shows geometric motion, not a practical step-by-step sequence. Paper thickness, durability, hand-folding difficulty, and physical results have not been tested.
This is a parametric accordion family, not a new invention or AI-generated design.