I have been wanting to learn how to use it and finally I managed to use it 2 days ago to sew a Green bag inspired by Mila. Will write about the green bag in another post.
What does a Picot Foot do? It makes a narrow hem with the edge of fabric folded inside. See the below:
|Picture borrowed from Brother website|
It is not so easy to use and I found a site which provide excellent information on how to use it:
1) Learn about the Picot Foot - http://www.threadsmagazine.com/item/3744/mastering-the-narrow-hemmer-part-one
2) How to sew using Picot Foot (Must read if you are new to Picot Foot and have one.. :) ) - http://www.threadsmagazine.com/item/3947/mastering-the-narrow-hemmer-part-two/page/all
-- Another way: http://www.berninausa.com/webautor-data/401/hemmer-feet-64-video.wmv
Sew a few stitches at the beginning without folding, and then use the thread to guide the fabric through the curl of the foot.
3) Additional techniques (corners, crossing over seam, etc) - http://www.threadsmagazine.com/item/3948/mastering-the-narrow-hemmer-part-three
Hope this help...