Originally Posted by
StMute
....... Probably because sewing is like magic to me. I simply can't get my mind around how this needle is punching holes in fabric and somehow the thread in the needle and the thread in the bobbin magically come together to hold the fabric together. It's not like there are 2 needles working together like crochet needles.. just one needle punching holes. It boggles my mind. What mad genius came up with a complicated gadget like this?
here is a very popular animated GIF of how it works. not magic, timing... it's all about the timing.
http://sewingschool.org/wp-content/u...bindiagram.gif
it is not quite correct but it shows the concept well.
here is a more accurite non-animated diag
http://www.volokh.com/files/guestblo...ckstitch_2.JPG
here is one of a transverse shuttle but it actually shows the process better
http://upload.wikimedia.org/wikipedi...x-Lockani1.gif