> Start form the top, not the bottom....... Enlarge
> the core hole near the top (by any method you want
> since calcite is not that difficult to carve by
> grinding) then bore down with the sand abrasive
> filling to the area being worked varying the borer
> size were needed. In the case of travertine quartz
> is 5 times harder as an abrasive than calcite.
> It's only impossible to those that imagine the
> ancient Egyptian can't even carve soapstone.......
> Archae Solenhofen (email@example.com)
"start from top to bottom"....
"Enlarge the core hole near the top (by any method you want)
YOU FORGOT TO MENTION THAT WE CANNOT ENLARGE THE NECK.
HOW DO WE FIT A LARGER TOOL INTO A SMALL NECK? THE METHOD OF ENLARGEMENT IS THE ISSUE
"Then bore down with sand abrasive filling the area being worked varying the borer size where needed".
I TAKE IT YOU MEAN USE PROGRESSIVELY LARGER BORERS. AGAIN, HOW DO WE GET THE LARGER BORERS IN THROUGH THE STILL NARROW NECK? INTO A BORE HOLE THAT IS THE SAME DIAMETER AS THE NECK
A.. Diameter of second stage "borer" boring tool.
B.. Diameter of existing neck and first stage bore hole.
YOU THEN START TRYING to DEFLECT BY BABBLING ON ABOUT RELATIVE MATERIALS HARDNESS. AGAIN THAT IS NOT THE ISSUE.
THE QUESTION IS... HOW DO WE GET PROGRESSIVELY LARGER BORING TOOLS IN THROUGH THE SMALL FIXED SIZE NECK?
I take it that you do not agree with Stocks' ridiculous stick and stone method, at least we agree on that.
Stocks does mention in the book that later dynastic stone vessels were made in two halves and then glued together.
Obviously the later dynastics had trouble replicating the earlier, solid, one piece stone vessels.
They must have been left scratching their heads in exactly the same way as we are.
As for the wall thickness, the wall thickness is constant in that it follows the profile of the exterior, never deviating by more than a few mm. It is not a series of parallel counter bores.
If not mm, what unit of measurement would you prefer?
Can you provide a drawing illustrating exactly how you fit a larger "borer" in through the necessarily narrow neck, into a bore that is the same diameter as the neck and has not yet been enlarged. Or prototype your method in softer material such as chalk in order to demonstrate.
Edited 9 time(s). Last edit at 07-May-16 11:49 by Jon Ellison.