Originally Posted by
rjwilder
One thing no one mentioned is to make sure your bobbin area is clean. I always clean out that area, its's amazing how much lint accumulates there.
Even a tiny piece of lint in the bobbin housing will mess up your stitches. My machine is a Brother PE770.
Photos below show where extra attention is needed. Even the tiniest piece of lint can cause the stitches to be messed up. I use a magnifying glass and fine tipped tweezers to clean this area of the bobbin.