Hi Amy (do I know you from Ovusoft?) here is what I posted in another thread:
I adopted the pocket method of leaving a flap of fabric where the elastic will go and folding it over. Basically, I used the pattern for my fitted diapers and cut the wool from this out of a sweater (since I will have no seam allowance, it makes it a bit bigger than the diaper). You could add 1/2" to your diaper pattern all the way around if needed. At the legs and back where I wanted elastic, I just cut out and around those areas leaving a 3/4" or so flap. Then, I sewed my elastic down as usual, and then covered it with the flap and sewed the flap down, being careful not to catch any of the elastic.
Oh, I almost forgot. My machine has an overedge stitch and so that is what I did all around the edges, since this was a 1-layer cover. I used 100% polyester thread so it wouldn't wick.
I'm quite proud of myself for this wrap! Here are a couple pics:
http://www.jheredia.com/photogallery/woolwrap1.jpg
http://www.jheredia.com/photogallery/woolwrap2.jpg
I adopted the pocket method of leaving a flap of fabric where the elastic will go and folding it over. Basically, I used the pattern for my fitted diapers and cut the wool from this out of a sweater (since I will have no seam allowance, it makes it a bit bigger than the diaper). You could add 1/2" to your diaper pattern all the way around if needed. At the legs and back where I wanted elastic, I just cut out and around those areas leaving a 3/4" or so flap. Then, I sewed my elastic down as usual, and then covered it with the flap and sewed the flap down, being careful not to catch any of the elastic.
Oh, I almost forgot. My machine has an overedge stitch and so that is what I did all around the edges, since this was a 1-layer cover. I used 100% polyester thread so it wouldn't wick.
I'm quite proud of myself for this wrap! Here are a couple pics:
http://www.jheredia.com/photogallery/woolwrap1.jpg
http://www.jheredia.com/photogallery/woolwrap2.jpg