Spinning 101: Using a double drive system wheel. Putting the bobbin on the flyer assembly, tightening tension of the drivecord, tying on a leader yarn, threading the leader yarn through the flyer assembly, treadling the wheel, starting to spin, and moving the newly-spun yarn along the bobbin [Done with almost no words for Maria in Thessaloniki, who has video capabilities but not sound right now, but I thought the video might be of use to any beginning spinner.] | Bobbin Boy