I'm reproducing in Fusion 360 an object based on a technical drawing, but I have trouble understanding what this means:
When I read the Wikipedia article on Engineering drawing, abbreviations and symbols, it states:
Radius of an arc or circle. Flats and reversals (falling within the dimensional tolerance zone) are tolerated unless "CR" (controlled radius) is explicitly specified.
But I still don't understand how this radius is being measured and therefore how to reproduce it.