Dec 13, 2018 | By Thomas
An ancient Incan city in Bolivia has been recreated using 3D printed models of fragments from a building.
The 1,500-year-old Pumapunku temple in western Bolivia is part of the Tiwanaku Site near Tiwanaku, in western Bolivia and believed by Incans to be where the world was created. Considered to be an architectural wonder of its time (AD 500-950), Pumapunku has been ransacked over the last 500 years to a point where none of the remaining 150 blocks that comprised the original building remain in their original place. Now it has been reconstructed from its remaining fragments using 3D printing.
Scientists say that the same technique could be used to rebuild the ancient city of Palmyra in Syria, which were destroyed in part by ISIS, or the Angkor Wat temples in Cambodia.
3D printed model of the ancient site of Tiwanaku (Image: Dr Alexei Vranich /SWNS.COM)
Using historical data, 3D printed pieces, and architectural software, archaeologist Alexei Vranich from UC Berkeley has created an accurate, 3D-printed miniature models of architectural fragments to reconstruct the Pumapunku building in the Tiwanaku site.
"A major challenge here is that the majority of the stones of Pumapunku are too large to move and that field notes from previous research by others present us with complex and cumbersome data that is difficult to visualize," said Dr Vranich. "The intent of our project was to translate that data into something that both our hands and our minds could grasp. Printing miniature 3D models of the stones allowed us to quickly handle and refit the blocks to try and recreate the structure.
"It is possible that using 3D printed models of fragments could help the study of other historic sites that have fallen apart in time, such as Angkor Wat in Cambodia, or that have been the victim of recent destruction, such as Palmyra in Syria."
(Image: Dr Alexei Vranich /SWNS.COM)
He said the 3D reconstruction of Pumapunku not only shows possible configurations of what the site may have looked like, but also gives clues about the purpose of the building.
Dr Vranich said: "One particularly interesting realization was that smashed doorways of different sizes that lay scattered around the site were aligned in a manner that would create a "mirror" effect; the impression of looking into infinity, when, in fact, the viewer was looking into a single room. This may relate to the Incans belief that this is the site where the world was created and could also suggest that the building was used as a ritual space."
The research team printed 3D models of a total of 140 pieces of andesite and 17 slabs of sandstone based on measurements compiled by various scholars over the past century and a half of the height, length and width of the blocks found at the site of Tiwanaku. The authors made physical models via 3D printing and then physically manipulated the blocks to reconstruct the site, trying out different ways in which they may fit together.
What the model will look like (Image: Dr Alexei Vranich /SWNS.COM)
Dr Vranich said: "This effort represents a technological step back from recent methods that used computer modelling to recreate structures on screen, but the human brain continues to be more efficient than a computer when it comes to manipulating and visualizing irregular 3D forms. We attempted to capitalize on archaeologists' learned ability to visualize and mentally rotate irregular objects in space by providing them with 3D printed objects that they could physically manipulate."
The findings were published in the journal Heritage Science.
Posted in 3D Printing Application
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