How do I decide what weight, color and gloss of thread to use in free motion quilting?

Answer 1

The choice of thread is very subjective and largely dependent upon the type of quilt you are making, it's intended purpose (that is wall-hanging vs a baby quilt that will be frequently washed), and the design effects you want to make.

When I first started quilting, I tended to use low gloss, finer threads, that would blend in with the fabric so that my beginner stitching quality would not be as obvious.  As I have gradually improved, I started venturing into heavier multicolor  or glossy threads that go well with the design effect I am trying to create.

Since I do a variety of quilts styles (mostly wallhangings), I try to select threads that complement the design.  If there is a very dominant focal point or pattern, I don't want the background stitching to detract from the flow of the eye.  Thus I will choose a less obvious thread.  However, if the stitching is to be the focus, then I will use a heavier, and perhaps high gloss thread to show off the stitching pattern.  In fact, I will likely combine different threads for this type of quilting.

And finally, for thread painting, I use again, whatever thread is going to give me the artistic effect I am looking to create.

I keep a stack of muslin- batting sandwiches (made from scraps of batting from other projects) near my machine so that I can practice my stitching, but also so that I can audition different threads for my projects.