I'm sorry , I can not see how an arm can be optimized for a particular alignment during the manufacturing process.
It can only rotates on it's pivot and we can choose to align the cartridge's stylus on whatever standard we wish, by simply rotate it's body and the pivot point.
Please tell me what I am missing?
"Also we need to take into account the different assumed inner Radii on the LP for calculating each arc".
I'm sorry I don't get it. What do you mean?
Of course the arm's pivot is different for each given standard but if we place the pointed edge of a pair of compasses at the pivot point & the other end at a point until the Eff. Length, then we can have the arc by simply rotate the compass against it's pivot.
I'm I wrong?
As for your question about why we don't have 14", maybe the answer hides on the easy money & cheap production cost of our times as I cannot find a logical answer.
George
It can only rotates on it's pivot and we can choose to align the cartridge's stylus on whatever standard we wish, by simply rotate it's body and the pivot point.
Please tell me what I am missing?
"Also we need to take into account the different assumed inner Radii on the LP for calculating each arc".
I'm sorry I don't get it. What do you mean?
Of course the arm's pivot is different for each given standard but if we place the pointed edge of a pair of compasses at the pivot point & the other end at a point until the Eff. Length, then we can have the arc by simply rotate the compass against it's pivot.
I'm I wrong?
As for your question about why we don't have 14", maybe the answer hides on the easy money & cheap production cost of our times as I cannot find a logical answer.
George