So, now you know I made a jacket for the Historical Fortnightly Sew UFO challenge. :-) However, explaining everything I did to get to a jacket would be very, very long for one blog spot. Due to this, I've split it up into three posts. Here's the previous post on how to draft a sleeve. This post is focusing on the body of the jacket. The pattern I end up with can easily be modified to be used for a robe a l'anglaise as well.
First, you need a piece of cheap fabric. I used about a yard or so of muslin and cut a hole slightly off center. You want more fabric to the back than the front so it will hang evenly on the dress dummy. As you can see below.
Also, any undergarments you will be wearing with the outfit you are draping needs to be on the dress dummy as well. In this case, my hideous stays. I made sure they closed on the dress dummy the way they do on me. :-) Important to make sure this outfit will fit me the same way it does the dress dummy!
The next thing I do is take two pins (you will need a lot of pins) and just put them a bit loosely right at the underarms. This is so I can see where I need to cut the armsyce first -this helps a lot with final visualization.
The arms do not need to be perfect at first, as you can see below. Just visible.
After cutting away the armsyce, I pin the sides loosely at the sides - just tight enough so I can see a humanish shape.
This is a much better photo of the side "pinching". I also have cut a bit more of the armscye. I tend to keep cutting it as I go since the fabric will continue to get tighter around that area.