I'm out of thread for the current corset project, don't have enough time to paint, and really, really don't feel like working on my web site, so I decided to write some musings on corset drafting. I'm not confident enough to write a full-blown tutorial on the subject yet, but hopefully some of this will be helpful to some of you anyway. If you have any thoughts, feedback, or other criticism regarding anything I write, please let me know. I am still figuring this stuff out.
I have noticed in various threads some discussion regarding measurements, particularly in regards to what measurements are needed for corset drafting. I use a measurement set that is small in comparison to many corseters. For circumference it's bust, underbust, lowest rib, waist (often the same as lowest rib), point of hip (high hip or highest part of pelvis), and hip (taken right above the articulation point of the hip joint). For height (taken either between the breasts or down the side), it's distance from bust to underbust, bust to lowest rib, bust to waist, bust to point of hip, bust to hip. Other measurements I might use are cup size (bra-top only), back length (nape of neck to waist), and back shoulder width (only needed for very high back with shoulder straps).
Most other needed measurements can be derived from these measurements, based on the proportions of the human body. It's very rare that someone would have proportions too off for derivation, and in those cases a mock-up (preferably in person) would be required for a good fit. The most common instance would be a woman with a bust that is two different cup sizes.
A great deal of corset design is a combination of body fitting and body sculpting. As far as I'm concerned, corsetry is a form of sculpting, because you are taking the human body and creating a garment that changes the shape to fit a fashion profile. Even when that sculpting takes a natural form, at least a little waist reduction is required to prevent the corset from shifting and chaffing while it is worn.
( Ramblings Continued, for those who are interested )