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originally posted by: bluesfreak
Being a machinist, I know full well what a jig is. Are there any AE art that depicts these jigs you mention? If you read my previous posts I have talked about this already. Do you think they used a jig to keep saw blades on correct course or do you think it was done manually with no guides? a reply to: Harte
originally posted by: jeep3r
a reply to: Kandinsky
While I couldn't find anything about the stone box on Elephantine Island, I did come across some references to similar objects. Here go some illustrations from Description de l'Egypte, a work published in 1809 as a result of Napoleon's expedition to Egypt:
Source
Source
And an almost identical object can be found inside the sanctuary of Edfu Temple:
Photo: Nguyen-Anh Le/Discopalace
Source
All of the above doesn't exclude the possibility of a later replica of said object, but it would suggest that similar monolithic boxes were already built around 237 to 57 BCE when Edfu Temple is said to have been constructed.
originally posted by: Harte
originally posted by: bluesfreak
Being a machinist, I know full well what a jig is. Are there any AE art that depicts these jigs you mention? If you read my previous posts I have talked about this already. Do you think they used a jig to keep saw blades on correct course or do you think it was done manually with no guides? a reply to: Harte
Congratulations. Former ME here.
Personally, I think jigs may have been used to get cuts started and try to ensure a bore is true. But maybe not when trueness wasn't a big factor.
Stocks carved out a starter groove for his tube drills to seat in.
Jigs aren't shown in artworks depicting stone sawing as far as I'm aware, but I do know that there's a lot of depictions of stone cutting, polishing and drilling that you'd have to do a serious search to find, and you probably wouldn't find many even then. You'd have to read about them. A depiction of a worker ripping a plank from a hunk of wood seems to show some kind of guide (possibly) on the top of the log. That's on a few websites as a drawing of the art.
The idea of a jig is so simple compared to many of the other things they did that it's hard for me to believe they didn't use them at all.
The capstone on top of the drill is a sort of jig in fact, so it's not like the idea is way out there or anything.
However, Stocks manufactured a stone vase without any jigs, and it looked pretty good.
Starting with experimental drills on page 150 then going on to the actual manufacture of a vase further down.
Made admittedly from softer stone because it was for proof of concept, not proof of time frame.
Harte
originally posted by: toysforadults
a reply to: bluesfreak
I've cut a bunch of granite and marble with a wet saw it works pretty good with power tools, water, electricity and all that. I couldn't imagine using rounded stones and bronze tools on that # I would quit the first day.
Also, I find it interesting that the same suspects are here parroting the same bull# narratives as usual. not even surprised