FORMULAS SINE BAR OR SINE PLATESETTING - …

1 TC 9-524 APPENDIX CFORMULASSINE BAR OR sine PLATESETTINGSine bars or sine plates usually have a length of 5 inches or 10 inches. These standard lengths are commonly used by the toolmaker or inspector. The sine bar or sine plate is used for accurately setting up work for machining or for inspection. Gageblocks are usually used for establishing the for determining the height of the sine bar setting for a given angle: multiply the sine of the angle by thelength of the sine bar. The sine of the angle is taken from the tables of trigonometric :What would be the height to set a sine bar for establishing an angle of 230 41 ? Solution: The sine of 23 41 Multiply this by 5 because a 5-inch sine bar is used.

2 5 x = , which is the height to set the sine FINDT aper per inchTaper per footTaper per footDiameter at smallend in inchesDiameter at largeend in inchesDistance between two givendiameters in inchesAmount of taper in a certainlength given in inchesRULES FOR FIGURING TAPERSGIVENT aper per footTaper per inchEnd diameters and length oftaper in inchesLarge diametre, length of taperin inches, and taper footSmall diameter, length of taperin inches, and taper per footTaper per foot and twodiameters in inchesTaper per footRULED ivide the taper per foot by the taper per inch by small diameter from large,divided by length of taper, andmultiply quotient by taper per foot by 12, multiplyby length of taper, and subtract fromlarge taper per foot by 12, multiplyby length of taper, and add results tosmall small diameter from large.

3 Divide remainder by taper per foot andmultiply quotient by taper per foot by 12 andmultiply by given length of tapperedpartC-1TC 9-524To find the circumference of a circleTo find the diameter of a circle x C or C/To find the area of a circleTo find size of round stock needed to machine a hexagon, D = x distance across the flatsTo find size of round stock needed to machine a square, D = x distance across the flatsTo find the area of a square, square one sideTo find the area of a rectangle, multiply length times widthTo find the volume of a cube, multiply length times width times depthTo find the volume of a square prism, multiply length times width times depthTo find the volume of a cylinder, multiplytimes radius squared times heightTo find the area of a triangle, multiply base times height divided by 2To find the area of a ring, subtract the area of inside diameter from the area of the outside or C-2TC 9-524 RIGHTTRIANGLESC-3TC 9-524C-4