what I'm seeing is what appears to be small bits of the original stone glued back together, and then I have to imagine that the parts that have a more uniform 'grey' colour are the parts that were fabricated to restore the general shape. And if making that assumption, and following the pan around the disc, the two parts of the outer ring that are a uniform grey do seem to be less precise than the one part of the ring that has more inclusion and differentiation of grey tone indicating it might be the one original ring that was restored. I believe someone has mentioned that originally it only had one complete flap when it was found in pieces, and the other two were fabricated to restore it. Perhaps that's true with the outer ring as well. It is supported in the visual difference in colour and tone consistency.
Well, if we make the assumption that the original was a more precise piece, then I certainly would entertain the idea that it was a part of a machine. But the following observations still remain:
1. Concavity of the outer upper surface of the flaps indicate to me it wouldn't be a productive shape for flow dynamics if the piece were to be rotated submerged in a fluid.
2. Vulnerability and fragility of the material indicates to me it would not have been intended to interact with matter that would stress the structure, like water or any liquid.
I did read the idea about it potentially being a prototype originally by Sirfiroth I believe. The challenge I have with that is that it would have no value as a positive for mold making because the shape is too complicated with too much undercut for it to be used for a negative mold. If there were mold making components for this piece, they would be completely separate pieces that separate at the area where angles change from 2 axis high relief to 3 axis undercuts. They would have no value as single pieces because most of the work would be in devising the separation points so the pieces could be molded separately.
However, if you are open to them having advanced tech similar to today, literally the past 5 - 10 years, (And the AP stone work is a reasonable argument for that possibility), then you could consider that piece having value for a positive for the purposes of 3D scanning, with that tech available, then having it as all one piece could be a stage in the process of duplicating. But if it were scanned, then the digital information would be the valuable thing to keep. The piece itself would have served its purpose and would be discarded. But more importantly, this wouldn't be a good example of a shape that would require that process, because if it were to require a perfection and symetry of arcs, angles and dimensions, then it would be completely designed in the simulation software only. There would be no use for a physically fabricated piece to start with, because it would only serve to corrupts the perfection requirement of the shape as a result of a hand made piece. If the piece in question had asymetrical orgainic elements that were of artistic value, then yes, you might start with a hand made piece and proceed into this tech to replicate it, but starting out with precision as a goal, this step would be avoided - again presuming there was a duplication scan and CnC tech available to them.
Its a big presumption, them having access to this kind of tech, but if we are going to consider the requirement of a high level of precision for this piece to function, then you could presume their very expectation of that level of precision in form and function must be associated with some time spent with that level of precision available to them already. In other words, the need for that level of precision would have been preceded by the very need for systems to create it and aid in visualizing and designing it. And since we've managed to develop advanced computer controlled visualization software inside a century, then its not so crazy an idea.
Edited 2 time(s). Last edit at 08-Mar-18 17:38 by Open mind.