This paper aims at contributing to the study of the relationship between technology, knowledge and representation. It is based on previous studies on architecture, art and technology in modernity and its development, as well as on studies about scale in architectural design. In despite of the fact that scale can be technically considered indifferent for computer-aided design, I intend to discuss how digital tools intercede in the process of clipping that selecting a specific scale eventually implies sustaining that, for architectural design, the concept of scale has to do both with representation and with knowledge of reality.