A Historic Restoration of Andrea Pisano’s Masterpiece
On June 24, 2019, during the feast of Florence’s patron saint, St. John, a faithful replica of the South Door of the Florence Baptistery was installed, replacing the original door created by Andrea Pisano over 700 years ago. We at Prototek proudly contributed to this unique cultural restoration project, commissioned by the Frilli Gallery, overseeing the entire 3D scanning and printing Florence Baptistery process.
The original door had deteriorated due to centuries of weathering, pollution, and environmental exposure, making its preservation in a climate-controlled museum essential.
This project completes a long restoration journey: in 1990, Lorenzo Ghiberti’s Gates of Paradise were replaced with a replica, and in 2013, the Baptistery’s North Door underwent the same process.
How 3D Scanning and Printing Supported Art Restoration
Our team performed detailed digital 3D scanning of the entire 5-meter-high by 4-meter-wide bronze door, divided into 28 panels. Every detail, hands, feet, clothing, and landscapes, was meticulously captured. The scanned data were processed into a full-scale CAD model, then 3D printed using SLS technology with Duraform GF, a durable, glass-filled polymer ideal for resistant, heat-stable prototypes.
Once printed, the panels were used to create wax molds and silicone casts, which were handed to Fonderia Artistica Ciglia & Carrai for bronze casting. The raw bronze pieces were carefully chiseled, welded, and finished to faithfully replicate Pisano’s original artistry.
After a month of precise assembly, the South Door replica was installed in its historical position on the Baptistery, while the original door was moved to the Museo dell’Opera del Duomo for preservation alongside the other doors.
Why 3D Technology is Changing Cultural Heritage
This project demonstrates how 3D printing for art restoration and digital 3D scanning in Florence restoration projects can preserve cultural heritage while allowing the public to experience historic masterpieces.
Modern technology enables artists, conservators, and engineers to collaborate like never before, from digital acquisition to full-scale reproduction.
The South Door replica now stands as a testament to Florence’s enduring commitment to art, history, and innovation, blending traditional craftsmanship with 3D technology in restoration. It exemplifies the potential of cultural heritage 3D scanning, full-scale 3D printing, and modern restoration techniques to safeguard masterpieces for future generations.
Ready to Bring Your Projects to Life with 3D Scanning and Printing?
Discover how 3D scanning and printing can transform your restoration, design, or art projects.
Contact Prototek’s team to explore the possibilities and bring your ideas to reality.
