Originally Posted by BlueChicken
I'm having problems with a seam allowance... this is going to be hard to explain, I hope someone recognises it!
When I'm sewing pieced blocks together, it's inevitable that at some point the block on the bottom will have a seam allowance that is pressed in the direction away from me, and what's happening is the feed dogs are tangling it and trying to turn it back, and it's ending in a big tangled mess.
I never used to have this problem, what am I doing wrong?
On my machine it's not the feed dogs that causes the problem....it's the throat plate or bobbin cover that flips the seams. The bobbin cover is contoured somewhat and the seams sometimes get caught when they pass over the cover.
What works for me is to pin every seam in place....sew at a slower pace and stop with the needle down when I come to a pin....lift the fabric up from the throat plate and let the seam settle back into place before removing the pin, then continue sewing to the next pin. It takes a little more time to sew a seam but your seams will not be flipped in the wrong direction anymore.