What the robot does, and what only a hand can
A robotic arm holds a tolerance no person can hold, for as long as you like, without tiring or arguing. It also cannot decide anything at all. Here is exactly where one stops and the other begins.
Most carving is removal
A great deal of what happens to a block is not art. It is the removal of several tonnes of material that was never going to be part of the work. Historically this was done by apprentices over weeks, and it was heavy, loud, dangerous, and dull.
This is the part a machine should do, and we let it. A robotic arm takes the block down to the rough form, exact to the millimetre, holding a tolerance no hand can hold. It does not get tired at four in the afternoon. It does not take a bad angle in bad light.
What the machine is genuinely better at
Repeatability across an edition, so the second and the eighth are truly alike. Symmetry, which the eye is unforgiving about. Deep and awkward clearance where a body cannot get a tool in safely. Scale, because a robot does not mind a piece larger than a person.
It also means the master does not spend a month of their working life on waste removal. That is not a small thing. There are not many master shilpis, and their hours are the scarcest material in this building.
What it cannot do
A robot follows a path. It does not look at a block, notice a fault running through the grain, and move the whole composition eight millimetres to save the piece. It does not know that a face is nearly right and the last half millimetre around the eye is the entire difference.
It cannot read stone. Every block has direction, hardness that varies, and flaws that only announce themselves once you are inside. A carver reads all of this continuously and adjusts. The machine has no opinion.
And it cannot make the final surface. A hand-finished surface is not smoother than a machined one. It is differently alive: minutely irregular in a way the eye reads as warmth rather than as error.
The order we work in
Source the block. A single sound block is chosen at the quarry and read for grain and fault, then set aside for one work and nothing else.
Rough by robot. The arm clears everything that is not the work, to a tolerance no hand could hold.
Finish by hand. A master shilpi takes over and stays. This is where the hours go, and where the work becomes itself.
Seal and certify. The work is sealed, numbered within its edition, and certified, with its origin, its maker and its date written down.
Why we say this out loud
Some houses use machines and would rather you did not know. We think that is the wrong instinct, and slightly insulting to the craft.
The machine is a better apprentice than any apprentice. It is not a carver, and it is not going to become one. Saying so plainly is how you tell the difference between a tool and a shortcut.