Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Fabrication Methods of the Polygonal Masonry of Large Tightly Fitted Stone Blocks with Curved Surface Interfaces in Megalithic Structures of Peru

Version 1 : Received: 2 August 2021 / Approved: 3 August 2021 / Online: 3 August 2021 (14:55:33 CEST)
Version 2 : Received: 9 October 2021 / Approved: 14 October 2021 / Online: 14 October 2021 (15:03:47 CEST)
(This article belongs to the Research Topic Ecofriendly Materials)

How to cite: Lapshin, R. Fabrication Methods of the Polygonal Masonry of Large Tightly Fitted Stone Blocks with Curved Surface Interfaces in Megalithic Structures of Peru. Preprints 2021, 2021080087 (doi: 10.20944/preprints202108.0087.v2). Lapshin, R. Fabrication Methods of the Polygonal Masonry of Large Tightly Fitted Stone Blocks with Curved Surface Interfaces in Megalithic Structures of Peru. Preprints 2021, 2021080087 (doi: 10.20944/preprints202108.0087.v2).

Abstract

The article suggests methods that allow creating the most complicated type of polygonal masonry found in Peru. This masonry consists of large stone blocks weighing from several hundred kilograms to several tons fitted close to each other almost without a gap between complicated curved surfaces of large area. The work provides a description of techniques, which apparently were used by builders who arrived from Europe. The techniques under discussion are based on the use of a reduced clay model, 3D-pantograph and replicas. The use of a reduced clay model and a pantograph provides not only the unique appearance and high quality of masonry with large blocks, but also allows to significantly increase the productivity of the builders. As machines copying three-dimensional objects are known since the 18th century, the stone structures under consideration should be dated by that and later time. The remaining simpler types of polygonal masonry with smaller stones or fitted surfaces are almost flat, or stones contact with each other by a small area, or there are significant gaps between stones, are quite consistent with the well-known methods of stone processing of those and earlier years, and, therefore, they do not require any additional explanations.

Supplementary and Associated Material

https://rostislav-lapshin.blogspot.com/2021/04/blog-post.html: Blog by Rostislav V. Lapshin (in Russian)
http://www.lapshin.fast-page.org/: Lapshin's Personal Page on SPM & Nanotechnology
http://lapshin.scienceontheweb.net/: Lapshin's Personal Page on SPM & Nanotechnology

Keywords

stone block; polygonal masonry; clay model; pantograph; replica; chisel; hammer; megalith; Inca; Cusco; Ollantaytambo; Machu Picchu; Peru

Comments (1)

Comment 1
Received: 14 October 2021
Commenter: Rostislav Lapshin
Commenter's Conflict of Interests: Author
Comment: The previous description was improved, several new reasonings and references were added, drawing of poor quality was replaced.
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