What is one of the five principal parts of a shaper?

The table is one of the five principal parts of a shaper, and it plays a crucial role in the machine's operation. It serves as the primary surface where the workpiece is secured. The table has horizontal and vertical movements that allow the operator to position the workpiece accurately for shaping operations. This adjustability is vital for achieving desired dimensions and contours during the machining process.

In shaper design, the table typically rests on the machine's base and can be moved in both horizontal and vertical directions, often aided by lead screws. Its stability ensures that the workpiece remains secure and that the shaping tool can operate effectively without compromising precision. Therefore, the correct identification of the table as a principal part reflects its fundamental role in the overall functionality of the shaper.