How to use calipers?

During the repair or turning and locksmith, it is necessary to carry out all sorts of measurements. They must be as accurate as possible so that everything works out on the harvested plan. For measurements there are many tools: level, ruler, roulette. But among them there is one most universal and most useful – it is a caliper.

With it, you can find out the height, depth, width, diameter, radius and much more. At first, it may seem that this is a complex tool, but actually use the caliper is quite simple, despite the huge number of functions.

How to use calipers?

Basic rules of use

In order for the device to always work properly and performed accurate measurements, you need to comply with all the necessary storage conditions. Mobile part lubricate with machine oil so that the sponges move smoothly and without much effort. While working, follow the safety technique, as the edges of the sponges are sharp, – an inexperienced person can be borrowed by them. They are specifically made so to make marking.

Keep the caliper in a place where there will be no extra dust, garbage, chips and other elements that can be clogged into the mechanism. Recently, manufacturers sell these tools along with cases. They protect devices from moisture, dirt and dust.

If dirt or moisture still got to the caliper, then it must be cleaned.

How to use calipers?

Since measurements can be carried out in different places with different conditions and some characters or numbers can simply disappear under the dust layer or dirt, then before starting work and after its end, wipe the front part of the device where you can see the numbers and where it comes from sponges. While working, make sure that all the sponges keep tightly and not loosened. The main advantage of the caliper is that it can testify with an accuracy of a thousand millimeter, so the skeletal of the sponges may affect the correctness of the measurements.

If the sponges are walking due to the method of measurement, and not because of the device itself, they can be pulled by the lock screw. It is located on top of the caliper and shape resembles a small wheel. It needs to be turned off so that the lips come into contact with the measured part or the surface as close as possible.

How to use calipers?

How to use calipers?

How to use calipers?

How to work?

In order to properly run the caliper, you need to understand how to read the readings. It’s all a bit more complicated here than a simple line. The fact is that The tool has two scales. The first (main) is a millimeter. It gives the initial data on measurement. The second (it is nonus) will help you measure high accuracy parts. It can also recognize the lobes of millimeter.

Nonius is 0.1 mm, so the correct measurement can give a very accurate result. But every models of calipers can be a different step (one division). As a rule, the length of the step is indicated by a little left on the scale itself.

How to use calipers?

How to use calipers?

Also, the nonius scale can be different and length. In some models, it reaches 2 cm (20 mm) from the main measuring scale, in others it can be about 4 cm. The larger the length, the more accurate the secondary scale will issue. Mostly, modern calipers are measured with an accuracy of 5 cells of millimeters (0.05 mm), older devices have accuracy only to one tenth millimeter (0.1 mm), which is two times less.

The caliper has two pairs of sponges: upper and lower. On some there is only one, but these are narrocyalized types of instruments. The top of the sponges are measured by an external width and height. The bottom is made measurements of the diameter and the inner width of the part. Internal grooves must be tightly pressed inside the element so that there is no hoppet and the diameter measurement was very accurate.

How to use calipers?

How to use calipers?

How to use calipers?

These sponges can be moved to quite a large distance, so with their help you can measure the diameter, length, width and height of the pipe, large bearing, large parts and other types of spare parts. But the main plus of the caliper is that it can determine the parameters and very small or thin objects. For example, they can be measured the cable cross section, determine the width of the wire, nail, nuts, a bolt thread step and a lot more.

Always during a large amount of turning or maintenance work, it is a caliper from for its convenience and versatility. But this device can be applied at the construction site.

If you want to measure the diameter of the reinforcement, brick, concrete block, then the caliper will help here.

How to use calipers?

Also, besides a pair of sponges, some models have a depth gauge. With it, you can easily measure the depth, and even small parts. This device is extended along with the measuring and non-measured scale. The line of depth gauge is very thin and calmly placed in the rear of the caliper. In order to measure the depth, just lower this device until it stops into the part (at the same time, put it in such a way that the item itself has a support) and fasten it from above with a clamping screw. After that, by means of a measuring scale, you can calculate the depth in the same way as the length is measured, height and other values.

How to use calipers?

If you do not know what drill used to make a specific hole, then just measure the diameter. In general, the caliper can answer many questions, and after some work with the measured part you can learn it completely. Included with a caliper can go instructions, so you can familiarize yourself with it before the first work.

How to use calipers?

How to use calipers?

In the case when the caliper has undergone corrosion, process it with a special tool from rust. Just look so that this agent does not energize the metal, because it may lead to the fact that divisions and steps on the measuring and non-narrow scale will not be visible.

There are electronic types of calipers, but they need to contact them more accurately. First of all, do not allow water or other liquids on the device. In the electronic scoreboard, a short circuit may occur, and you can not find out the exact data.

How to use calipers?

How to use calipers?

It is also not worth measuring any things running from electricity. It can knock down the scoreboard, and the results after measurement will be incorrect. Before you start, check the device and press the ON button to turn on the calipers. After you removed the testimony and you need to re-make measurement, press the zero setting button. The principle of inclusion is about the same as in an unprogrammed calculator: after each operation, the value must be reset.

Same In the electronic version of the caliper, it is necessary to change the power. To do this, open the cover of the protective casing and replace the battery. Also do not forget about the polarity. If the battery is working, but the scoreboard does not work anyway, then check if the power element is inserted correctly.

How to use calipers?

How to read indications?

Initial measurement on the main scale. Highlight a number of millimeters. In order to learn more accurate readings, look for risks on nonius (second scale). You will need to find where the risks of the second scale coincide with the first. If you can define on the eye on the main scale, that the testimony is closer to the end of the millimeter, then it is also better to look for an adhesive from the end of a nonical scale. It is risks who should show the most accurate readings.

In the case when you have several risks, it is better not to work with such a calipel and not even try to adjust, as it is faulty. Only dividing zeros can coincide, but they coincide due to the fact that these are the same numbers.

How to use calipers?

How to use calipers?

If you want to know about learning, then it is not necessary to peer into the nonical scale. The main value can be determined by measuring. It also happens that the values ​​on the scales are erased or becomes not visible. For better safety, degrease these surfaces and wipe with a cloth, because you will see all divisions.

There are other types of calibration types, for example: dial and electronic. Dial is made in the form of a circle, where the arrow indicates a certain measure. This operation replaces the calculation of indicators on nonius. Electronic options are much easier in work, but more expensive. You will need only to measure (any, it can be depth, diameter, length), and the digit will be displayed on the electronic scoreboard. This will be the desired value. It may also have accuracy of 0.05, 0.02 or 0.01 mm.

How to use calipers?

Conducting marking operations

The caliper has many functions, so it can be used for marking. This process depends on the type of device device. The fact is that the lower sponges (which mark the markup) can not only be rectangular with internal bends, but also round. In any case, the inner edge is cut specifically so that the bottom sponge can be made mark.

To do this, make measurements and slightly press up the bottom sponge on the material where you will make a mark. Due to the fact that the edge is a bit taken, it will be peculiar to scratch and celebrate. You can also not resort to the method of scratching, but simply leave the caliper in place and make a mark using a marker, pencil or other items.

If you make the markup according to the plan, do not forget about the scale, because it is not always 1 to 1.

How to use calipers?

How to use calipers?

How to use calipers?

Possible mistakes

Newbies begin to make a lot of mistakes during the first measurements and subsequent work. Examples can be given when novice people begin to measure the inner diameter of the upper lips that are designed to measure the surfaces of the part. Also, newbies are not always followed behind the locking screw: it goes freely. But this particular part of the device reliably fixes the part in the vice, which gives the most accurate measurements.

Everything comes with experience, and there is no possibility to find out all the subtleties of the caliper, without using it, so the most important prevention against errors is a practice.

How to use calipers?

How to use the caliper, see the following video.

Rate article
( No ratings yet )
Share to friends
Rebuildhom.info - construction and repair, dacha plot, apartment and country house, useful tips and photos
Add a comment