Threading Right the First Time, and Why Tension Lies to You
Okay. We've talked about your machine's guts and where the darning foot lives. Now let's talk about the thing that ruins more quilting sessions than anything else, and it's not your skill. It's thread going in wrong.
Honestly, I want to start here because tension problems get blamed on everything except the actual cause. Humidity. The thread brand. Mercury retrograde, for all I know. Nine times out of ten it's threading. I know that because I lived it.
The story I tell on myself
I had a whole project once where my tension was off the entire time. Loops on the back, thread not pulling through clean, the works. I blamed the machine. I blamed the thread weight. I blamed the fact that it was February and everything in Utah gets dry and weird this time of year. I even blamed humidity, which, fine, dry air does affect fabric and thread behavior some, but that wasn't it.
It was me. I'd skipped a thread guide. One little slot, up near the tension discs, and I'd threaded around it instead of through it. The machine wasn't lying about having a problem. It just wasn't the problem I was looking for.
I tell people this one a lot because I don't want anyone spiraling the way I did. Before you blame the machine, check the thread path. Every time.
How to thread it so it actually seats
Every machine's a little different, but the bones are the same. Here's what I do, in order, every single time I sit down:
Raise the presser foot before you thread. This is the one people skip because it seems irrelevant. It's not. When the foot's up, the tension discs are open. Thread the machine with the foot down and the thread slides past the discs instead of seating between them. That's it. That's half of all tension complaints solved before you even start sewing.
Follow the path with your eyes, not your memory. Machines have a diagram somewhere, usually printed right on the machine or in the manual. Follow it slowly the first few times instead of doing it from muscle memory, especially if you've got more than one machine or you're using a machine that isn't yours. I still look at mine sometimes and I've had it four years.
Pull the thread all the way through, snug against the last guide before the needle. Don't leave slack anywhere in the path. Slack up top shows up as a problem down at the needle plate, which is annoying because it makes you think the issue is somewhere it's not.
Rethread the bobbin the same careful way. People obsess over the top thread and forget the bobbin's got its own tension situation happening in that little case. If your bobbin's inserted with the thread pulling the wrong direction, or it's not seated in its slot right, you'll get the same looping, puckering mess and think it's a top-thread problem.
Then, and only then, test on scrap. Not your real fabric. A scrap of the ugly stuff from your practice pile. Sew a few inches, flip it over, look at the back. The back tells you the truth the front won't.
Reading what the back is telling you
If you see little loops of top thread sitting on the back, your top tension's probably too loose, or it never seated in the discs because the foot was down when you threaded.
If the bobbin thread is getting pulled up and showing on the front, that's usually top tension too tight, or a bobbin that's threaded backward.
If it just looks like a straight, boring stitch line on both sides, you did it right. That's the goal. Boring is the goal here.
Here's my opinion on this, and it's a real one: don't touch your tension dial until you've confirmed the threading is right. People crank that dial around trying to fix a problem that a rethread would've solved in ten seconds. Get the threading right first. Adjust tension second, and only a little at a time.
A small aside about why we do this at all
Alice asked me once, flat out, why I don't just buy blankets. It'd honestly be faster. Cheaper too, probably, once you count the thread and the fabric and the machine itself.
I didn't have a good answer that night. I still don't have a great one. Something about it being mine, start to finish, even the parts I get wrong. Rethreading the machine for the fourth time in an evening because I skipped a guide is annoying, but it's also just part of the thing being mine to fix. Nobody's coming to do it for me. I sort of like that.
Before next time
Practice threading your machine with your eyes closed once, just to see how much you actually know versus how much you're guessing. Then do it again properly, with your eyes open, and sew a few test lines on scrap before we meet again. Bring the scrap. I want to see the back of it.