onceuponageeek:

darthmelyanna:

drst:

bilt2tumble:

I have ALWAYS wanted to know how a sewing machine worked!!!!

This is and excellent illustration of why thread tension is a big deal for sewing machines.

Yep. If you see little dots of your bobbin thread on the top, your top tension is too tight. If you see dots your top thread on the bottom, your top tension is too loose. If you get a mess of your top thread on the bottom, you probably need to rethread the needle and/or wind a new bobbin.

(You can also adjust the bobbin tension, but that’s usually not necessary for anything but free-motion quilting. It also requires much finer adjustments than the top tension.)

This is really helpful in helping me figure out why my machine is so angry at me!