By the end of the Ming dynasty (1368 to 1644), the method had been further refined. The bow was made of wood, with a string of waxed thread, and suspended from a pole, which increased the speed of operation.
到了明末，又改進為「以木為弓，蠟絲為弦」的形式，工作技巧也改採「懸竿彈棉法」，如此更提高彈棉的速度。