I'm researching FW parts for another forum member who's machine is on the fritz. So to get a better idea of what I'm looking at I got out our FW. As I was turning the hand wheel and watching the bobbin hook I realized that FW's are rotaries. Yepper they got rotary hook bobbin drives.
Whoo Hooo, I learned sompin new today.
Now where's my analgesic, new knowledge makes my head hurt .....
Joe