When using a sewing machine, most of us encounter this problem at some point or another – birdnesting. This is what we call it when the threads bunch up and look like… a bird’s nest. So, what can we do to troubleshoot the problem and, hopefully, fix it?
First of all, you can try increasing the tension on your machine. This will make the thread tighter, which makes bunching a lot less likely.
Secondly, try re-threading the machine. Sometimes, thread gets back up, goes in wrong… who knows? Whatever the case, re-threading can fix the issue, so long as you put it in correctly.
Lastly, check to make sure that the machine’s various components are free of dust and other debris. Any engineer or mechanic will tell you that dust is anything but a microscopic issue for machines. Get rid of any dirt and oil according to your machine’s manual.
If none of this works, take your sewing machine into a professional and have in tuned up. Just like a car, sewing machines need tune ups. So, have it looked at and get it working again!