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INTRODUCTION TO SINE BAR. SINE BAR USE The sine bar is used either for very accurate angular measurements or for locating work at a given angle. The sine.

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Presentation on theme: "INTRODUCTION TO SINE BAR. SINE BAR USE The sine bar is used either for very accurate angular measurements or for locating work at a given angle. The sine."— Presentation transcript:

1 INTRODUCTION TO SINE BAR

2 SINE BAR USE The sine bar is used either for very accurate angular measurements or for locating work at a given angle. The sine bar is especially useful in measuring or checking angles when the limit of accuracy is 5 minutes or less

3 SAMPLES OF SINE BAR

4 Terms and Symbols Diameter: Ø Angle: < Height: H Radius: R. Degrees:°

5 SETTING UP A 5-INCH SINE BAR TO GIVEN ANGLE

6 TOOLS NEEDED SURFACE GROUND GRANITE TABLE HEIGHT GAUGE GAUGE BLOCKS

7 REFER TO MACHINIST HAND BOOK pg 1366 or 1121

8 FIND THE HEIGHT FOR THE FOLLOWING ANGLES 10°11’= ________ 15°30’=_________ 22°45’= _________ 32°18’=__________ 36° 41’=__________


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