Free motion attempt gone wrong!
 

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I was so excited when I saw the front, then I turned out over and wanted to cry. What did I do wrong? Maybe the bobbin tension? [ATTACH=CONFIG]546996[/ATTACH]but I had already sewn today, it was a straight stitch but perfectly fine. Feed dogs were dropped. :(

I think you needed to tighten your top tension, perhaps also loosen your bobbin tension. The bobbin thread is not being pulled taut by the upper thread, which indicates top tension is too loose. It is worse on the loop (eyelashing), which can mean you were moving too fast also.

Trying slowing down, and my machine behaves better if the feed dogs are UP with the stitch length set to 0. Keep trying, you will get there :)

Each machine seems to have its own little quirks. After you make an adjustment, just stitch a little and see what it looks like before doing a whole area. I get the eyelashes too when I move the quilt too fast.

A good rule of thumb that helps me.... if the issue with stitches are on the bottom.... tweak the top tension. If the issue with stiches are on the top.... tweak the bobbin tension. Do very small tweaks at a time. Sometimes, I just have to walk away for a while to clear my head and the tension in me! ;-) You can do this!

I'm trying to figure out where to change the thread tension. Argh! On a Brother PC420PRW

On my Janome, I drop the feed dogs, and move the tension from auto to 6 - as suggested by my Janome dealer. Slow and steady, make sure the needle eye is appropriate for the thread, and RELAX.

It's the dial to the left of the area where you put your thread spool. Don't change it too much at once, or you may have a problem with your top thread breaking. On my PC420 I usually had to lower my top thread tension a little from the normal setting of 3 or 4, but since you are having the problem on the back side it looks to me like you need to raise your top thread tension. Try raising it just one or two small clicks at a time until you've got the worst of the eye lashing gone. Then you will want to practice speeding up the machine but slowing down your hands as you go around curves.

Rob

Thank you, I see it now. I'll let you know if that helps.