6

Cutting into the existing armhole will most likely end badly, because you need a lot more fabric to secure those darts than is available at the arm hole. If you want to make the hole smaller, you have to sew more material to it. I hope you didn't throw the sleeves away yet, because that is the perfect material for your endeavor. You didn't post a picture or ...


4

An assembled sleeve isn't much more than a tube of fabric, but completely disassembled, it looks more complicated. If you are inexperienced with tailoring, this "quick and dirty" tutorial looks like a good start: How to tailor a sleeve. It requires you to put on the shirt (or dress) inside out, gather the surplus fabric at the existing seams and pin it to ...


2

The answer depends upon several things: the features of the dress you are altering, such as, sleeveless vs sleeved, types of sleeves if present, gathered vs fitted waist, presence of side seam fasteners or pockets, etc... the fabric the dress is made of how much you are altering the dress how persnickety you yourself are about things like seam finishes and ...


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