design observed :: day 7
Tuesday, October 27, 2009 at 8:49AM Whoa! I was getting ahead of myself! Yesterday I said we'd go to cutting today. But there are still a couple of things to consider before our scissors get their first bite.
Layout
Since we don't have a commercial pattern, with its handy layout diagrams, we'll have to decide on the layout ourselves. No magic here, just moving the pieces around until they fit. Here's a layout diagram for our project:

Here's where our list of pattern pieces comes in handy. We can just go down the list and put each piece in there, moving them around where they'll fit best. The layout sketch above would work very nicely if we were using a zipper in the center back seam. But since we're using a continuous bound placket, the center back can be placed on the fold, eliminating a seam. So I'll move the dress back piece onto the fabric fold below the dress front piece, and fill in the others in the space that's left.
All this moving of pattern pieces brings up another important point.
Grainline
There is, of course, a lengthwise and crosswise grain in every fabric. "Lengthwise" is from cut end to cut end, "crosswise" runs from selvage to selvage. In woven fabrics (like the corduroy we're using) the lengthwise grain is going to be the most stable. As in, the least apt to stretch. But the crosswise usually has a little give. So it makes sense that you'd want the crosswise grain, with its little bit of give, to go around the body, and the lengthwise, which will hold its shape, to go up and down.
There are a couple of notable exceptions: When using a border print, which is printed with a pretty border design down the selvage, the pattern pieces have to be placed on the crosswise grain for the border to fall at the hem. Bias cut garments are cut at a 45 degree angle to the selvage, either for a nice drape or a particular look. (Such as diagonal stripes.)
So we've decided we want the pattern pieces oriented vertically along our fabric, but we have to remember...
Nap
Any fabric that has a "pile", or in other words, isn't flat, such as corduroy, velvet, etc., has a "nap". If we were to flip the pattern piece for our dress back upside down on our layout up there, the front of the dress would look a slightly different color than the back when we're finished. So we lay them all out with their tops pointing in the same direction.
Incidentally, I read somewhere that the "correct" way to cut out corduroy garments is with the nap running up the garment. So that it lays down only if you rub upward on the fabric. "Correct", of course, is relative. It does help you to remember which way is up if you always do it the same way.
Estimating yardage
Now that we understand grainline and nap and we've got our layout all sketched up, it's only a matter of adding up the longest lengths to decide how much fabric we need. Adding all of the pattern piece lengths in our drawing up there, I came up with roughly 60". However, since we're uncertain whether we want the pleated panel to be 18", like I've got it on the layout, or up to three inches longer, I'm going to add three inches to be safe. With very expensive fabrics, or if you're limited to a certain amount of fabric, you'll probably want to make these decisions before cutting.
I find that 63" is 1.75 yards. If I were ordering fabric, I'd go ahead and round up to 2 yards, unless, of course, it's something expensive. Since I have a bolt of corduroy, that's how much I'll cut off and prewash.
Whew! That was a lot of words for a couple of simple concepts. I'm off to prewash, and then we'll start cutting.
Again, questions?
~Erin~

























