Very often during lathe or plumbing work should be possible to accurately determine the size of the workpiece, or any details. In this case, comes to the aid of a special master meter - caliper. They can measure both external and internal, as well as in-depth dimensions, precision geometric lines and blanks of any shape. Very often in our editorial office received questions: how to use a caliper, is there a video or photo report on this subject? Today we decided to provide our readers with comprehensive advice and guidance on this topic.
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- 1 What is the caliper and what is needed
- 2 What it is in caliper
- 3 vernier caliper
- 4 dial caliper
- 5 electronic caliper
- 6 How to work with a caliper
- 7 What is the price of dividing the caliper, and how to read your
- 8 As caliper marking operation is carried out
- 9 Why are there errors in the measurements
- 10 How to store the tool
What is the caliper and what is needed
Caliper helps to determine the exact dimensions of the part, its diameter, thickness, depth of the recesses or holes, the distance between the elements. With this tool carried rejection products enterprises. In addition, it is used to monitor the wear of parts.
Interesting fact! Some models allow the device to apply the marks on the workpiece surface.
The tool is useful for any webmaster or less familiar with joinery. It helps to within a fraction of a millimeter to measure the diameter of the drill or the nut, the distance between edges parts define holes in the wall or width board. Usually it is carefully stored in a special case, to avoid dust moving elements.
Purpose defines calipers and circuit devices.
What it is in caliper
The simplest device, and for understanding the principle of operation is suitable just such, consists of the following elements.
In order to determine correctly how, and most importantly, how to use a vernier caliper, it is necessary to study its modifications. Starting point for selection of the device - the measurement accuracy, the dimensions of parts and the number of measuring surfaces. Calipers can be modified depending on:
- measurement range. The length scale on the rod may be from 125 to 4000 mm.
- sensibility. Tolerance - 0.05 mm.
- functionality. In particular, whether or not there is Echo.
- Complexity and size measured parts.
- design reading device.
vernier caliper
Such caliper often can be found in It-Yourselfers. This is the simplest mechanical device. It consists of a rod with a scale framework (usually it does not exceed 15 cm), the upper and lower lips, which are secured on the rod.
Frame, moving the rod, it allows you to accurately determine the size of up to a tenth of a millimeter. Remember that the upper and lower jaws are usually very sharpened to make the most accurate measurements to perform. Therefore, they should be used carefully to avoid cuts. In addition, the mobile scale is a special additional scale - vernier. It consists of 10 units, the price of each - 0.19 mm. This range allows the measurement items to the nearest 0.1 mm.
dial caliper
In this case, the principle of operation is no different from mechanical calipers. The only difference is that here, instead of the vernier scale used dial.
electronic caliper
This digital caliper in which the fraction of a millimeter is not necessary to consider all the necessary information will be reflected on the display.
Do not forget that electronic devices only show the information in the mechanical samples can be measured on the vernier scale. Size equal to or greater than a millimeter, you look at the frame.
How to work with a caliper
First of all, you need to prepare the item and the device to work. To do this, remove with a dry cloth and dust pollution. In addition, the drilling unit zero mark only reduce the sponge with each other. Consider how to properly measure the caliper stages.
| Illustration | Description of the action |
 | Let's look at the device from all sides, he seemingly very simple, but allows you to accurately measure different sizes. |
 | For example, it may be the width of the heat sink. |
 | Diameter drill. |
 | It is possible to measure the internal diameter of the holes. |
 | Also it can be used to find out the distance between the edges of the product or the width of the grooves. |
 | But this retractable strap - a depth gauge, which measures the depth of the hole or slot. |
What is the price of dividing the caliper, and how to read your
In calipers, as we already know, two scales - millimeter and additional vernier (it can be a digital or an indicator). The photo below shows schematically the testimony vernier scales with different divisions prices.
Price dividing each device can have its own. Usually this information is listed on the most vernier scale.
As caliper marking operation is carried out
Mechanical caliper can cope with a variety of operations. Including carry out the markup mount any part or element. How to use a caliper to mark, to show fotoinstruktsii.
| Illustration | Description of the action |
 | The first stage - are the measures taken with the details. Anchoring the clamping screw. |
 | Fixed size can be easily (we remember that the tips we have sharpened) to move to the item in the form of markup. |
 | We compare our item with markings, which we dealt with a caliper. And yet, it is possible to drill holes and attach our element. |
Why are there errors in the measurements
Errors often arise because of the uneven position measurement details on the instrument jaws. Very often, inexperienced masters are trying to carry out an internal diameter measuring external lips and vice versa. These problems can be solved simply - skills and experience.
Important! Before starting the measurement make sure to calibrate caliper. An electronic instrument includes a dedicated button - «zero» or zero. In the mechanical simply loosen the screws and bring the unit to its original position and tighten down again.
Some errors may occur because of the physical deterioration of the device - the curvature of its scope or loss of screws. In this case, to make any accurate measurement is not possible.
How to store the tool
To complete his work and quality of the device is stored in a special suitcases or briefcases and often with a soft covering.
After each measurement the instrument should be sure to clean the box. Prior to this, wipe all work surfaces with a soft cloth. It is better to release the screw, slightly loosen the sponge to take them at some distance, to avoid friction pointed metal together. If you have any questions on the product, the following video will help answer them.
We also welcome your comments and questions below under the article. edition HouseChief.ru always willing to provide useful and accurate instructions on any matter of interest to you.
