A one-page article on how spinning wheels draw yarn onto the bobbin, the first of a series. It names three basic draw mechanisms (double band, Scotch tension, and "Indian head" tension) and explains the double-banded system in detail: the figure-8 drive band, bobbin and flyer pulleys, pulley size ratio, drive cord tension and the screw tension control on antique wheels. Diagrams show the drive band, pulleys, flyer assembly and the direction of flyer movement on castle and saxony wheels. Scotch tension and Indian head systems are left for the next installment.