The Basic Conical Torso Block (Part 1)
Posted on Wednesday, June 16th, 2010 at 8:42 pm
PDF The Origami Bit
Cut the block out.
Starting at the Back mid-line, valley fold the block along the mid-line.
Fold the block back out so that the diagonal lines on either side of the mid-line remain touching.
Lather, rinse, and repeat to remove the marked triangles. If you find yourself with an angle as severe as the one I've got in front here, go back and check out the Adjustment for a Large Bust.
Fully folded out, a block that has been adjusted for a large bust looks a little less jarring. (The fact that we've now got a curved top edge goes a long way towards explaining why extreme boobs and doublets aren't such good friends!)
Go on to Part 2…
You might also like:
- Shape Matters: Why the ultra-basic corset draft doesn’t work for every body.
- The Basic Brim Pattern
- Basic Proportions of the Effigy Corset
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Oh my goodness- you’re talking about renaissance costuming and actually DEALING WITH ARMSCYES. Most instructions just say things along the lines of “draw an angled line” or the even more helpful “add straps.”
Thank you thank you thank you!
You’re welcome. :) It’ll get even better once I finish the photography for the straps and tackle the over-bust portion of the draft…. ;) I swear to you, I could geek out for pages about how the invention of the fitted armscye is one of my favorite feats of tailoring geometry between 1400 and 1700 (and yes, it took a couple hundred years to get the curves all right rather than relying on bias stretch). Actually, what with me being me, I might just rock my geekiness on that some day,,,,
Hmmm…. Somehow my armscye to waist measurement is 1/2 an inch above my bust line. What should one do in this instance? Did I measure the armscye to waist wrong?
Such a good tutorial, thank you! And I would love to hear you geeking out about armscyes. They still scare me. I can’t wait to try this out!
Hi, Laura – That might just be how your body is shaped, but check to make sure you followed the directions I posted for taking your Nape-to-Waist measurement. When you look at a woman’s body, the armscye appears to be significantly above the bust line (unless she’s had a very bad plastic surgeon!). If you take both the Armscye-to-Waist and the Nape-to-Waist measurements absolutely flat to the body, the armscye to waist will be the larger of the two. This draft is based on taking the nape to waist measurement so that it reflects the mound of the bust, rather than being tight to the sternum. (I just checked mine as a reference – my armscye-to-waist is 7.5″, my bust-to-waist is 8.5 taken on angle from the level of the chest in to the waist but only 7″ if I take it flat against the body. Mind you, I’m wearing a sports bra, so things aren’t exactly in their ideal position right now.) Because the bust angles away from the body, many women will find that the distance between their bustline and their waistline is actually slightly longer than their armscye-to-waist length. (That’s triangles for ya…. The Hypotenuse is longer than you’d think.) We’re taking the measurement that way to avoid a lot of fussing and guessing about the size of the chest – taking the measures in a way that reflects the curve of the bust guarantees that the resulting block will accomodate the bust. The entire bust, which is pretty imporatant.
There are three exceptions where I’d expect the Armscye-to-Waist measurement to be longer than the Bust-to-Waist (that I can think of off hand, at any rate). If you have extremely pendulous breasts and do not wear a supportive bra, you’ll find that your bustline is much closer to your waist and the measurements will reflect it. If you are extremely flat-chested, you’ll also find that your armscye-to-waist measurement is longer, because your bust doesn’t angle away from the body significantly. Also, if you have a significant curvature to your spine, that can lower the bustline. I’d like to add a list of watch points to the second half of the article, so thank you for asking. If you retake the Nape-to-Waist/Nape-to-Bust measurement and there’s no change, you’ll want to make the tick for the Armscye-to-Waist measurement on the sideline slightly above the Bust line, and your middle triangle will be taller than than your side triangles. That’s totally fine- bodies tend to be custom jobs.
Sanna – Armscyes aren’t that bad, once you get the hang of them. The problem is that they have to transition between about 5-7 separate planes on the body (ie, relatively flat areas) – the side, the bust side, the upper chest, the shoulder point itself which can be flatter or rounder depending on build, the back shoulder and the back side. Each time we have to make a flat thing, like cloth, transition from on plane to another, we need to make a curve. That’s why modern armscyes are shaped like odd flatty eggs. When you look at armscyes in the 1500s, they’re a lot less complex. When you look through the patterns in PoF1, you’ll see the armscyes don’t have a lot of curving above the chest – they’re sort of an angled teardrop shape. That’s great news, because it means that once you have the strap at the right angle to the body, you’re only dealing with straight pieces. It hasn’t gotten near as complex as it will!
Hey, i am doing textiles at school and am trying to find a simple medievel dress pattern that wont be too difficult but i could get a good mark on. Can you help please? Thanks :)
Hi, Ellie – That’s something I’ll be getting to, yes, but it’s not planned for any time in the next couple weeks. You might want to check your local sewing store pattern section – look under costumes in the pattern books. Hope that helps….
[...] that I’ve got all the photography done, it’s time to pick up where we left off in The Basic Conical Torso Block (Part 1). We’re completing a basic torso block that we can use for the simplified, conical torsos [...]
[...] version of the Conical Draft directions, and is probably much more useful if you’ve read the full version. It’s available below, and always available in the Downloads [...]
This is seriously amazing! I now know what my next project is going to be :D. Thanks for your lovely words and inspiration, it’s so nice to read something that is well thought out, concise and clear in instructions. Being a maths nut is awesome as well!
I am NO mathematician and am struggling with some of your instructions.
On page two under Modeling the Body’s Curves…
1. My bust is 38″ and my waist is 40″ (I have a belly pooch). My front bust is 18″ and my front waist is 20″. I don’t understand what I’m subtracting. What would my Front or Back Triangle Bases be?
***Could you provide your doll’s measurements for examples?
2. Also, which line is the “midline” to mark the ticks from? The first line from the side measurement or the 2nd line from the side measurement? Meaning…is the midline the halfway mark from your front bust or is it a quarter of it?
Hey, Mo,
Sorry about the confusion! Last thing’s first:
***You don’t want the doll’s measurements. I’m working in convenient 16ths of inches. It’s the ick!
2. The “midline” to use for marking the triangles is the vertical line that separates the front (or back) in half (drawn in the first two pictures on page 2). The only time you’d have more than one line dividing your front is in the adjustment for a very large bust/tum – I don’t think you need to take that step.
1. Since your waist measurements is larger than your bust measurement, you will be taking out along your bust line. Your front bust is 2″ smaller than your front waist. Divide that difference in half (because we’re only drawing half the front), and you have 1″. We’re going to divide that measurement into thirds, because we’ll be using it in three places: both sides of the front midline, and the front side of the sideline (first vertical line you drew). This gives you 1/3″, which is probably not on your ruler – it’s a hair more than 5/16″, which probably is.
So, along the bust line, mark a tick 5/16″ to the front of the sideline, and two more to either side of the midline. Draw a line that connects the sideline tick down to the waist/sideline intersection. Draw two more lines, one from each midline tick on the bustline down to the midline/waist intersection. You will have one nice looking upside-down triangle centered over the midline, and an upside-down right triangle at your sideline.
A little clever math tells me that your back bust and waist are the same. No adjustment is needed. You win, and don’t have to make any more ticks and triangles!
I hope that helps… If it doesn’t, email me directly and I can send you a picture of what I mean.
YES! I get it now! Thank you again!
I can’t wait to work on it tonite when I get home from drudgery at work.
-Mo.
PS – Do you have a facebook page? I’d love to friend you.
Yay! I’m so glad. :) And yes, I do have a facebook page – look for Melissa Heischberg. (I think I’m still the only one, and I’m pretty sure I managed to tell fb about my sebsite so that should help if I’m not.) I love having friends! :) I’m like, the worst fb friend ever, though – the facebooker and I don’t get on so well and I don’t log in a lot. Years of working in technology behind me, and somehow facebook still makes me feel like a techno-troglodyte. Go fig….
I’ve been struggling with this for days. 4 drafts and alterations later and I’m no closer to fixing whatever the heck I did wrong.
I am an hourglass shape who’s pretty busty so I followed those instructions. I’ve double checked my measurements and no matter what I do, I can’t seem to get it to close. It closes at the top, but not the bottom. Help! Please?
BTW I am totally in love with your website.
Hi, Nat,
I’m so sorry! I don’t want to be adding to your frustrations! I’d like to help, but I don’t have enough information to tell you exactly what’s up. Here are some places to start:
1) Is the waist line staying true to your actual waist with no dips above or below at the center front/back? The number one reason why you’d see the waist not fit even though the measurement is right is because the waist line is off true – when it rises or dips, it’s going to be short because an angled oval cross-cut of the body will have a larger circumference than a straight cross-cut. It’s enlarged sort of like a long shadow. This can be caused by a number of things, but taking out triangles that are slightly off along the waist will do it, as will having the wrong bust-to-waist or armscye-to-wast measurements. I usually go back and check with a ruler to make sure that the finished waist line I got was the one I was going for, because numbers and I don’t get on so well. ;)
2) Are you leaving an extension at the Center Front when you fit, or are you cutting both sides to the marked Center line? The idea of the extension is that if the fit is off by a small amount (less than 2″), you can use the extension to mark the extra amount needed to close. You’ll then divide that extra wedge evenly and apply it to both fronts.
3) Is the draft extending significantly above the widest part of the bust? Sometimes boobs are like icebergs – there’s a lot more under the water (or bodice) line than you expect. If your bosom is sort of equally large around a large amount of the cup, it’s going to throw things a little bit – your draft has already started angling in to your waist, but your body itself is still busy being a bust. If so, you’re going to be a very good candidate for a curved front corset. Um, I’m not sure I know how to explain that in the space of a comment and without visual aids. As a basic example, if your front bust is, like, 22″ and your bust to waist is, say, 10″, and you check your front bust again 8″ above your waist and it’s *still* 22″, you fit into this category. The basic alteration goes like this: mark the top of the angled line from the front waist tick position to a point 8″ up the front line. This leaves you with 2″ of center front that have no decrease, to accomodate the particular shape of your bosom. (Realistically, this issue is shared by most women at a DD cup and above, so you’re not alone.) From there, the line comes in sharply to meet your waist and support the bust by compressing it underneath. Now, this is obviously not a curve, therefore not yet a curved front corset. You need to shave that angle below the bust into a curve – draw this to the inside of the two lines, rather than the outside.
Hopefully, some of that is at least as clear as mud. If it’s not, you can email me (missa at sempstress dot org) with the measurements you’re working with maybe a picture of what’s happening? I might be able to be more helpful then!
I’m so glad you like the site even though the draft is not working for you!
Hi!
Thank you for this useful pattern.
I’ve red a month ago (but I don’t remember the right post) that you were going to do a pattern for a bodice attached to an open front over skirt: am I babbling?
Because I need it, but I am not able to find it.
P.S. Please, be patient with my english: I’m italian.
Hi, Giulia,
You’re not babbling! I just haven’t done it yet. Mea culpa! Here’s the easy way, if you know how to make a bodice and a basic pleated skirt (flat pleats or cartridge pleats, it doesn’t matter):
1) Make up a front opening bodice. It should be lined, because it has to support the weight of the skirts.
2) Make up a skirt with at least two panels. Instead of sewing the panels into a tube like you normally do, finish them as a very wide rectangle. The two “ends” of the rectangle are the front edges of the skirt.
3) Pleat the top edge of the skirt down to the size of the bottom edge of the bodice. (Cartridge pleats are good here, because it’s easier to adjust the size of the skirt!)
4) Instead of attaching the skirt to a waistband, attach it to the bottom of the bodice on the outside. Do this by hand with a sturdy thread. I usually place the top of the pleats about a half inch above the bottom of the bodice.
It’s a little more complicated if the bodice has a V to the waistline in front. Folding the skirt down to the inside so that if follows the line of the bodice works pretty well, and is arguable a period way to handle the situation.
Hope that helps a little!
Thank you very much for your answer!It’s been very kind of you.
I guess that sewing the skirt to the bodice is going to be the most difficult part.
I have just one dubt about the underskirt: if the overskirt has Cartidge pleats, the underskirt has to be that way too, to look good? But maybe two layers of Cartidge pleats it’s too much: I don’t know if all that tissue at the waist is going to look pretty…
Anyway, your site is great: it makes me wish I were a better sewer!
Hi, Giulia,
Usually when I do a cartridge pleated overskirt, I used a flat pleat for the underskirt. It’s hard to get two layers of cartridge pleats to sit correctly on top of each other. (You need to stagger them so they sit one on top of the other, rather than overlapping.)
I’m so glad you’re enjoying the site! :)
Your description is well detailed, I was almost able to do on the first go and I am pretty sure I can make it perfect…….