On the traditional machines the adjustments to perform skivings are every time carried out by the operator and require a considerable loss of time and mistakes can be made when adjustments have to be repeated. On the contrary SC VISION, controlled by a computerized system, can store the fundamental data or programs (width, angle and thickness; feeding speed of the piece that is performed etc.....) concerning 1000 different kinds of skivings. The different stored programs can be also grouped in sequences , it is therefore possible to perform up to 10 different kinds of skivings on the part that is processed. For example it is possible to group into one sequence all the kinds of skivings which have to be performed on the pieces which form a definite upper model. The stored programs can be recalled by simply fingering the distinctive symbol on the keyboard; moreover at any time it is possible to change the data of a program already on. The required kind of skiving within the sequence can be quickly selected by means of a special pedal. The sharpening of the knife and the dressing of the grinding wheels can be programmed according to the metres of the processed work. It is also possible to program and store the working procedure of the transport roll (it can work continuously with a prefixed speed, or variably by means of the pedal) for any kind of processing. If necessary, it is possible to release the upper by means of the foot-lifter which can be operated by the knee switch.