... and upgrade. Takedown roller: Programmed instruction, controlled by marching motor, changeable 24 levels and selectable scope: ... /S. Stich system: Controlled by stepping motor, 24 section stitch selectable, adjustable scope supported by subdivision technology: 0-650, ... needle position(special intarsia available). Sinker system: Controlled by stepping motor, adjustable to different knitware, have virous ...