In the loquatious manner of old books, the full title of this blog post continues:
Containing therein an explanation of the fundamental importance of the difference between dart width and dart angle.
What shenanigans Marmota gets into when she has too much free time on her hands and wants a quick solution to something (Spoiler alert: It was anything but quick.)
I have to say right ahead that this was written back in May so some of the info about how the FreeSewing.org site is set up here is dated. The problems with the pattern remain exactly the same, though.
I also have to say right ahead that the sum total of my knowledge of programming is a neat zero, so I have no idea how the actual code works and cannot unfortunately fix it.
I do, however, by now know a thing or two about drafting sewing patterns, and about measuring and altering them to make sure they fit - seeing as I'm exactly the sort of non-average person FreeSewing.org is targetting:
In their system, back in May, the closer you were to a standard size, the more your diagram looked like a perfect circle. Mine was a perfect splotch.
So I can at least offer an explanation of why it doesn't work. Why the way they take those detailed measurements (that for the most part do make sense to me) and turn them into this pattern... results in a pattern that does not work at all. Long story short: the very base of the women's sloper is flawed and does not seem to take into account some fundamental truths of sewing and pattern-making.
I hope that this post will both work as a (very detailed) review for other existing / potential users to see exactly why that particular covetable pattern (custom slopers are covetable, right?) doesn't work right now, as well as hopefully help the programmers do things better in the future when it comes to women's patterns. Because I do love the idea of OpenSource patterns!
(And maybe it will also help explain some things about drafting your own slopers. I learned a lot from this myself.)