Quarter Inch Foot:
A quarter inch foot is a sewing machine foot that creates a stitch that is 1/4" inch from the raw edge of the fabric when the raw edge of the fabric is placed along the outside edge and the needle is positioned in the default or center position. This makes it easy and consistent when piecing and increases the accuracy of your 1/4" foot. Note: quarter inch feet vary in appearance based on brand of sewing machine and of foot.
Quilt as You Go:
Quilt as you go is the process of quilting as you are piecing or assembling your quilt. You will stitch through the block pieces, batting and backing. Sometimes it is done with sashing when putting blocks together. This is a popular method because two tasks are accomplished at one time (block or quilt assembly AND quilting).
Quilt Math
Yes - there is math in quilting! Strip or piece size, unfinished block size, finished block size, backing size, batting size, seam allowance....you get the idea.
Where quilting math comes in most frequently is in computing the unfinished versus the finished block or unit size.
Let's look at the nine patch diagram above. If each of our strips (pink/lime/pink, lime/pink/lime and pink/lime/pink) are each 2 1/2" WIDE and 6 1/2" high (from raw edge to raw edge), what size is the stitched nine patch block? At first glance, you might think 2 1/2" + 2 1/2" + 2 1/2" = 7 1/2". But let's NOT forget about the 1/4" seam allowance. You will LOSE 1/4" from EACH piece at each seam. So you are really adding 2 1/4" (because you only lose 1/4" from the first pink/lime/pink), 2" (because you lose 1/4" from both sides of the lime/pink/lime) and 2 1/4" for the last pink/lime/pink (because again you lose 1/4" from ONE side of the strip). Which means....your nine patch block is 6 1/2" wide, 6 1/2" tall, unfinished.
Unfinished size = raw edge to raw edge. Finished size = size once sewn into a quilt. With the finished size, you subtract 1/4" from EACH raw edge. So our nine patch above is 6 1/2" square unfinished, 6" finished.
Don't stress! Most patterns give you all the math you need. But it is great to know the math of quilting so you can double check your piecing as you go!
Head over to Kate's blog to get her insights on more "Q" quilting terms!
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