i am a visual learner, so i am dense when it comes to this
explanation. so i’m going to see if i can get a better understanding
by asking some additional questions.
i have a couple round ring mandrels with the size markings on it. are
you saying that if i can make a paper cone, so to speak, slip it over
the round mandrel and somehow transfer the size markings to this cone
shaped paper mandrel, then i’d just slip it through my new non-round
ring shank, then i would know its size? and if yes, that’s wonderful
and useful, but what if i need to know how much metal to cut first? i
can calculate that with a round mandrel, so basically, i’m still
wondering if the shape does not matter–just the amount of metal?
so here is what i was originally querying and perhaps not giving
enough details, and being a visual learner, i should not have
short-cutted my question. i now want to make ring shanks that are
not round. i have mandrels in the shapes i’d like–basicallq
squarish with rounded corners or round on the bottom and flat along
the top, etc. but none of these have any size markings. if i sized
it with the round mandrel–let’s say size 9–and then put it on the
squarish one and reshaped (yes i know it could alter the size a
little, but lets ignore that for now, as i can compensate for that)
would i have the correct size ring?
thanks to everyone that has answered thus far, but being a visual
learner, i have to plead that i didn’t understand the responses.