One pinion drives the axis (the "learn") whilst the second pinion is "preloaded" to remove the backlash (the "slave"). The preload is made electronically which has a Specific motor controller; these programs will also be set up to travel jointly through cycle instances when backlash is not really crucial. Dans https://gearbox-cvt91234.livebloggs.com/39021895/the-smart-trick-of-gearbox-cvt-that-nobody-is-discussing