Second installment of Fritz Keunecke's serial on machine-made fancy laces, covering the mathematics of thread tension on braiding and lace machines. It derives equations for travel, speed and acceleration of the thread tension eyelet as the yarn carrier moves around its plate, using a 44-carrier, one-thread lace machine running at 240 rpm as a worked example. It then compares how acceleration affects thread tension in carriers using a tension weight versus a tension spring, with diagrams of the curves.