Patent ID: 7673547
Filing Date: 2010-03-09
Classification: B23D,Y10T

Abstract:
1. A miter saw comprising: a base that supports a workpiece; a turntable supported on the base and rotatable about a rotation axis relative to the base; a circular saw unit rotatably supporting a circular saw blade; a support section provided to the turntable and pivotally movably supporting the circular saw unit at a position above the turntable; a rotation limit mechanism for limiting rotation of the turntable at a predetermined rotation angle; a rotation amount detection unit that detects a rotation amount of the turntable relative to the base; a display that displays a rotation angle of the turntable; and a control unit comprising: means for computing a correction value that makes a rotation angle to be displayed at the display to be coincident with the predetermined rotation angle when the turntable is rotated to the predetermined rotation angle; means for computing the rotation angle of the turntable by multiplying the correction value by the rotation amount detected by the rotation amount detection unit; and means for displaying the computed rotation angle at the display.