Working on Judy's Star BOM has been an excellent exercise for me. I've used these blocks to try to improve my cutting and piecing skills. With measurements in 1/16ths precision cutting is really important and just the nature of star blocks means lots of points to match. I am getting better with each block and have had to totally re-cut and remake one since block #3. Today I got 2 more blocks made - yeah! Three more and I'll be caught up.
I thought I'd share the process that I've been using to make sure my points are perfect. I'm sure it's not new but I was in the mood to post so this is what you are getting!
Here we go. A pinwheel block.
My first step is to do what everyone does - stick a pin through the two block exactly at the spot where the points are. The pin is going from the back of the top piece and through the front of the bottom piece.
Align the fabrics so that the pin is sticking STRAIGHT through both pieces. This is how you know that the pieced points are lined up perfectly with each other.
With that first pin still in place and perfectly straight, place two pins on either side of the positioning pin. These pins are perpendicular to the edge of the fabric and are pinned with the point in the seam. Pull out the positioning pin. By pinning like this I can keep the pins in as I sew.
Yes, I do sew over the pins. Once I am withing about 3/4 inch of the pin I slow down and watch every stitch to make sure I am heading right for that point intersection (arrow). Because I am sewing so slow the pins don't cause any risk of breaking the needle. (Who am I kidding? I sew over pins all the time.)
But not always. Obviously I did not pin properly on this one. The point on he top piece is fine but the bottom one is not.
In this case I rip out about 1" on either side of the point intersection, say a few special words, re-pin and re-sew.
If I missed stitching the intersection wrong on both pieces I will re-sew the seam without ripping put the previous seam (unless the first one is too wide or I am going to press the seam open).