6-If you're using a degree of precision less than x decimals to prove that the measurements of the frame show pi or phi to x decimals, why do you believe this would have no effect on your calculations?
How do you propose to record the fact that you know at least the first 18 decimals of Pi on stone? Can you use lasers to incise lines with so much precision? Of course, not.
Your idea is therefore fallacious. What you have to do is write down the idea, i.e., do it in symbols. The Athena engraving shows us how to do exactly that. Do you have a better way of recording the same along with the other info into mere thirteen segments on an apparent free hand engraving?
Let's face it - you don't, and you won't, because the Frame is not only intelligent, but it is
truly brilliant.
There is a philosophical aspect to this, if we really needed micro-measurements to discover intelligent design in the engraving, then the engraving's benefits would be limited to the few people with direct access to the item. The ancient designers manage to maintain some control across time by making it possible to catch on to their symbolic language for mere members of the audience like me, or you.
355 / 113 = 3.141592.. the first six decimals in the ratio between the two whole numbers coincide with Pi.
Voila, whole numbers read out in decimals, in a divisional reading mode! Ideas govern measurements.
7-Why did you divide the frame into a pie chart, and why did you arrange it like that?
The Frame is a circuit. A pie-chart is also a circuit. The Frame can be represented by a pie-chart. It makes many things simpler, but the numbers are still all there.
This idea can be pursued to where you reduce this circuit to let's say the numbers that divide evenly into 25,920, or you can reduce it to those that don't.

You can reorganize the values by their size. See the example. You can perform simple arithmetic operations on blocks of values to see what they do. You are playing a game initiated by the ancient designers.
You can falsify this process, but if you don't design your values in carefully, the falsificate will be a sorry failure
8-Some of your calculations round mm to cm to obtain a ratio, why? Note that this leads me to believe you're working with a precision of over 1 cm, which will consequently lead me to laugh at any claims you have to have measured anything in half mm!
How bizarre, I must laugh right back at your ideas. Have you ever heard the term "expressed in terms of"? An item like a distance can be expressed in terms of whole millimeters, as well as whole centimeters, etc.
9-Perhaps most importantly: Why did you draw the lines where you drew them? As bruto pointed out, there does not appear to be a compelling reason for this except for drawing those lines there because you wanted to create certain ratios.
That's just something you tenaciously hold onto for the dear life of your idea. This would be a perfect situation for a confrontation, where everybody could see the jumping ball. In the absence of that, give me a concrete example, and I'll react.
Go ahead, take your time. You insist that this was all designed (ETA: By the frame makers, not by you), and that it has some significance. Now it's time to prove it, if you're so inclined. That web page is not convincing, maybe your arguments will be.