| 摘要 |
<p>A system for cutting windows or openings in mats used in framing works of art. The system involves the use of a variably positionable head (28) to which a cutting blade (30) is attached for cutting a beveled edge in the mat. A longitudinal drive (22), transverse drive (24), and orthogonal drive (26), form a combined positioning device capable of moving the head in any direction. A rotational drive (32) may also form part of the combined positioning device for rotating and adjusting the position of the blade (30). A linear variable displacement transducer (100) is coupled to the head (28) and operatively coupled to the orthogonal drive (26) to maintain the head (28) a constant distance away from the mat so the blade (30) cuts a continuously smooth beveled edge in the mat.</p> |
