01 / UNFOLD IT
The crease map
Leading edgeTrailing edge
Panel labels follow the original sheet. A / B identify its two faces; these are not booklet page numbers.
Feed the sheet
Choose a fold to start.
A fold, from the inside.
Follow the paper. Meet the stop. Watch the buckle become a fold.
THE MACHINE
READY
Four plates. One paper journey.
SIDE VIEW · TEACHING SCHEMATIC
Paper
Folding plate
Stop
Roller
01
02 / INSPECT IT
Folded result
Choose a folding pattern or adjust the plates and stop positions yourself. Play the animation—or step through it—to follow the sheet as it reaches each stop, forms a buckle, enters the roller nip and becomes the final folded packet.
This experience was simulated using the material from Prof. V. Jansen’s 181320 Post Press Technologies · Chapter 3: Folding Principles. A comprehensive bibliography is part of the lecture and is available from Prof. Jansen upon request.