Turn the handle. Follow the force. See how an impression is made.
37-second narrated tour. Play, pause, or scrub to explore.
This is an educational reconstruction of a wooden screw press, not a scan or an exact replica of Gutenberg’s machine. Its frame, threaded screw, lever, platen, and sliding bed demonstrate the core mechanics of letterpress printing.
Dimensions, screw travel, type count, and working clearances are simplified for visibility. The screw rotates and travels through a fixed nut; a swivel connection lets the platen descend without turning. The cutaway exposes that relationship. The animation is explanatory, not a force or stress simulation.
Sheet placement is simplified, without the tympan and frisket frames familiar from later hand presses. Those details should not be mistaken for a documented reconstruction of Gutenberg’s original workshop.
The making-a-book sequence uses small illustrative type and two-sheet gatherings for clarity. Most Gutenberg Bible gatherings contained five sheets. Sheets carry multiple page faces and are printed on both sides; page numbers here explain the fold and were not printed in the original Bible.