Whew! This is going to be difficult you guys, because frankly I want to give you the exact directions from the pattern drafting book I use which feels quite...icky? I mean, I highly recommend you all invest in the book,
Patternmaking for Fashion Design by Helen Joseph-Armstrong, as I continue to use my copy all the time, despite buying it ages ago originally as a textbook my first year of college. This is Joseph-Armstrong's method, and walking you through it feels very close to plagiarism. The question is if you can plagiarize text, which is obviously a thing, can you also plagiarizer methods and techniques? I dunno, but all I'm going to say before continuing is--- please go buy the book so I feel less bad.
Then again, perhaps my directions will be so confusing you will literally have to buy the book ;)
You all have your measurements from last time right? Great, though I have some bad news, if you start drafting your pattern and you notice things are just
not working, it may be because your measurements are off (like- you think the end of the shoulder is one spot, and really it is off by an inch or something). This quickly happened to me, and so I turned to plan B, which in this case was to look at
a measurement chart and find a "size" with measurements where most of the numbers matched mine as much as possible. The book I use to draft patterns has such a chart in the front, and the listed size 16 measurements matched over 50% of my own. The listed "size 16" (whatever that means?) had a 40 1/2" bust, a 32" waist, and a 42" hip, and my own measurements are 40 1/2" bust, 30" waist, and 44" hips. So they were a bit off there, but at we won't be using the hip measurement to draft the bodice sloper I knew that number wouldn't matter, and taking in the waist in the end would be easy since there are going to have to be adjustments to the final sloper anyway.
What's that? Adjustments? Why yes, my dear intrepid patternmaking folk, the odds of this first sloper pattern fitting you perfectly are slim to none (yes, even though you may be using your "exact" measurements). So sorry again, but them's the facts. I mentioned before that my own method of pattern drafting has all the real work upfront, once you have created your perfect bodice pattern, you will then be able to draft almost any style of dress from it, but you have to make that base bodice pattern first, and to do that there is going to be a lot of adjusting, mock-ups/muslins, and fitting involved. My guiding principal is this:
it is always going to be much easier to fix something imperfect than to create a perfect thing from scratch.
To that point I must mention again that you
can buy sloper patterns, they are a thing you can purchase and skip this whole step. You will still have to adjust them to fit you, but hey you can skip the following mess if you'd like. I personally have the double quality of being impatient and cheap when it comes to patterns, I don't want to wait to acquire them (via ordering online or whatever) and I don't want to pay for them when I know it is possible to draft them myself for free. So if any of you are still with me, lets make a simple sloper so we have something to work with eh?
Three further disclaimers: firstly, I wish to formally apologize to metric users...so sorry bout that, and second the name of the measurement used for each line below will be in
bold text. Finally, the letters in the instructions below correspond to Joseph-Armstrong's order of her directions, and while my directions may be in a different order, I have kept the letters the same (so we wont necessarily be using the letters in alphabetical order, but that doesn't actually matter). Mmkay ;)
Grab some paper, a long ruler (I needed my regular clear 18" ruler as well as a longer 24" ruler), a french curve will come in major handy and they are pretty cheap so get one of those, a pencil and a big eraser and we'll get going...
(don't say I didn't warn you)