Reading a caliper is not rocket science, but not as easy as reading a ruler as well. Select standard scales from the dropdown, or enter custom scale directly. How to Read A Caliper. You just read them from different ends. What is the scale reading for the marker labeled “A”? In this lesson we will practice reading to the nearest quarter inch. Note in the example below, the numbers on the 1/8-inch scale increase from left to right. Remember that one quarter inch is the same as one fourth inch. • You must learn to read both from left to right, and right to left. Linear scale is safely embedded in the light weight aluminum scale body Look at the 6 inch scale below. the 2 ¾-inch mark, and the 3 ¼-inch mark on the bottom three rulers above. Other calipers can be much longer in length. -5 function button: On/Off, inch/mm/Fraction, Zero reset, Incremental/Absolute, Set -Fractional reading in 64th increment -Zero point can be set anywhere along the full travel for comparing measurement -No rack, pinion, or glass scale. If you noticed, the "handle" of the caliper has a scale that starts from zero on the left and goes up to 6 inches on the right, in this case. It is graduated in 1/8ths of an inch on the top side and 1/16ths of an inch on the bottom. Scale Up. (Note that some rulers only go down to 1/8 inch lines, whereas others go down to 1/32 inch lines.) The big number in the center of the scale is the inch … You count the lines from the end. Convert from Scale Size to Real Size. Though the machinist ruler may appear to be very much like other rulers, the number of increments between inches or centimeters allow it to be read with a much higher degree of accuracy than standard rulers which don't feature as many increments. You will add those two readings to get the measurement result. Each inch is divided into 16 lines, meaning that the space between each line is 1/16 inch long — this is the smallest length you can measure with a ruler. So, in N scale you would make your 20 foot long building 1.5 inches long. A machinist ruler is an important piece of equipment for mechanics and others who need exacting measurements. If you can measure accurately in full scale, you may want to skip ahead. Full scale is simply letting one inch on a ruler, steel rule, or draftsman’s scale equal one inch on the actual object. There is a little bit you need to know first. See how this scale … This number (0.456) is read as four hundred and fifty-six thousands. Some of them, vernier and dial caliper, have the main and the second scale. Reading a ruler starts with understanding what all the ticks mean. Check Total Inches to increment every inch, displaying the total inches instead of inches (1-12) in each foot. The inch is the biggest unit on a ruler and is represented by the longest line. A ruler (or scale) that has 8ths and 16ths on one side, and 32nds and 64ths of an inch on the other side is called a 4R scale. On the ruler that measures in 8th parts of an inch, find and label tick marks for these points: the 1/8-inch point, the 5/8-inch point, the 7/8-inch point, the 1 5/8-inch point, and the 2 3/8-inch point. On the other hand, a digital caliper needs no adding. These tick marks let us read the inch scale to the nearest half inch, quarter inch, or eighth inch. 3. 3/16 = 1 foot 3/8 = 1 foot 1 inch = 1 foot 1/8 = 1 foot 1/2 = 1 foot 1½ inches = 1 foot • The scale marked “16” is a standard ruler. The largest ticks on a ruler represent a full inch and the distance between each large tick is 1″. Here is a “big Inch”. Once the paper is cut or folded, this can make it easier to align and read from the scaled plan. The first measurement exercise will be with full size. 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