The drawback of this system is that, the arm would not rotate to the desired destination flawlessly. To reach its target, the button has to be clicked all the time frequently which contributes to the not user friendly system
The drawback of this system is that, the arm wouldnot rotate to the desired destination flawlessly. Toreach its target, the button has to be clicked all thetime frequently which contributes to the not userfriendly system