How to make lever scales with your own hands

Sometimes a lot of different trash accumulates at home. This trash can be thrown out, or you can make very useful things from it, for example, Libra. The kitchen is often required for a complex recipe to measure a small amount of ingredients. If you are engaged in chemical experiments, then you can’t do without the exact weight of the substance.

Libra are equal, shoulder, lever and electronic. In order to make the first three types of scales, it is quite suitable that you will find at home: a hanger for clothes, a ruler, a knitting needle from a broken umbrella, used covers and much more, which in principle will not come in handy. But the device of electronic weights is quite complicated. In order to make electronic scales, you may need tensodists, inductance coils, transformers and similar devices, which certainly just do not lie in the form.

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Equal Libra in their appearance resemble a swing. So for their manufacture you will need a straight line for shoulders. The role of this bar can be played by an ordinary ruler, a knitting needle from an umbrella and any other straight stick.

At the edges of the bar, you need to attach the bowls. For these purposes, you can use any two identical containers. It can be traffic jams, metal covers for canning, measuring cups, etc.P. On the edges of these containers, three holes are made from each other and attach threads, a fishing line for a trimmer, a thin wire to them.

In the center of the bar should be glued (or welded) perpendicular to another rail, only shorter. This arrow will show the balance of the shoulders of the scales. For these purposes, you can even use a needle. Your scales are ready, it remains only to strengthen them on any stand, for example, hang on a hook on a vertically installed rail.

The shoulder scales are good in that they allow you to measure not only absolute weight, but also measure the required amount, for example, a bulk composition. The main difference between such weights and equal paces is that the cups can move along the rail and installed at different points relative to the suspension.

As a bar for such scales, it is best to take a thin rheck. You can also hang it on a hook. If the rail is very thin, it is better to make its groove in the middle, not a hole. Make an arrow-igolka, which will indicate a deviation of the scales there.

From the suspension point in both directions, measure equal distances, numbing them as it is removed. In places of marks, you can make notches so that the scales do not slide along the bar during weighing. The bowls are also made, like in equal weights, only they are not attached to the edges of the bar, but are suspended. When weighing, reverse proportionality is used: l1/l2 = m2/m1.

Lever scales are also easy to perform. In order to make them, you will need any platform, tripod. Lever and cup for weight. A lever is attached to the tripod with the help of screws, to one side of which a cup for weighing is attached. The other side of the lever is the arrow of the scales. Experisively, you set weight division.

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Weights can be purchased at the store. Tablets that have a completely clear weight indicated on the packaging can also serve as weights. In addition, ordinary coins can be used as a weight by experimentally setting them with the exact weight.

Do-it-yourself scales for the role-playing game “Shop

Do-it-yourself scales for the role-playing game “Shop”

Good afternoon, dear colleagues! I present to your attention a master class on making weights for playing a store.

Accidentally at home stumbled upon a box with weights of the times of the USSR.

And here I had an idea to make a scales with my own hands. To do this, I needed an ordinary shoe box, two round flowers for flowers, colored paper, cardboard, awl, scissors, simple pencil, blue tape.

I took an ordinary cardboard box from under the shoes, pushed it with blue tape to make the scales of blue.

Then I made a template of the upper part of the scales. I circled the template on the cardboard, cut it out, pushed blue paper.

Next, she took up the interior of the scales.

I printed numbers, cut out an arrow from black cardboard.

Glued the upper part of the scales to the cardboard cover of the box.

Added two cups for scales on both sides. You can glue them or sew them with a needle in the center, previously pierces with an awl of the holes in the cups of the scales.

All together gathered, it turned out such scales, now you can take it to work. Children will be happy to play the store, calling vegetables, fruits and color. I have the first younger group.

In the future, I plan to make weights from salt dough and color them in the main colors: red, yellow, green and blue.

Thank you, dear colleagues, for viewing! I would be glad if one of you comes in handy my master class.

“Cash apparatus” for the role-playing game in the store children losing all life situations, whether it is a trip with my mother to the hospital, or to the store. To play the store, we need a shop that we need.

Do-it-yourself attributes for the role-playing game “Shop” to acquire game experience and the ability to develop a game plot must teach children to play. In the game, the child shows the initiative and creative.

Summary of the role-playing game for the first younger group “Vegetable Store” Purpose: to form the initial skills of role-playing behavior. Materials and equipment: scales, cash desks, dummy of vegetables and fruits, bag, wallet, suit.

Shoulder scales

These are non.enormous weight measurement devices, since the bowls in this case move along the bar. Such devices will help measure not only the weight of any items, but also measure any bulk products

The bar for these scales is taken thin, and then it is more advisable to punch not a hole, but just a groove.

Next, you need to install an arrow, for example, from a needle or something similar to fix weight deviations. The next step is the same cuts on both sides of the center. the suspension point, and calibration is made. It is more reasonable to apply notes there, since in the process of measuring the weight of the bowl they can slip.

There can also be lids from bottles, plastic cups and bowls, but here they are not fixed on the rail, but are suspended on the threads.

Examples of homemade lever weights, how to make lever scales:

In order to make lever scales of everything, it is necessary: ​​a platform, tripod (can be made of wood or plexiglass), and a lever (it can be cut out of a sheet of iron), and naturally a cup for a weight. The design of this kind of scales is so simple (like the principle of their action) that it needs only a separate explanation of the drawing

The figure shows that there are installation screws in the platform. they are necessary in order to smoothly set the scales (by twisting or unscrewing them). this is important for weighing. Libra should stand evenly, you can even attach a water level to your structure. I also want to draw your attention to the so.called “stop” drawing

Drawing. a sketch of some structural elements

Stop in lever weights is necessary so that the counterweight would not fall, and you did not have to align them every time, in short for the convenience of use.

Cardboard weight machine for school project || DIY working model of weighing balance

Kostom also, if you wish, you can do without a stopper and counterweight. it is also convenient, use a design with an elastic band or a simple spring drawing

Drawing. lever scales with an elastic band instead of a counterweight

But keep in mind! There is one difficulty. to choose an elastic band suitable in strength.

Equal home scales

Equal homemade scales for measuring grams are similar to a swing, you need a flat bar (ruler, knitting needle, flat stick, etc.P.). “Cups” are attached to the edges of the bar (small plastic bowls or bottles cover).

Three holes are pierced in equal distances, into which a thread or fishing line for a trimmer is fixed. Perpendicular to the center of the bar join a small plank. She will play the role of an arrow fixing her shoulder balance. Then the scales are fixed on the stand and are effectively used as intended.

Equal, known from the school bench, are made from a pencil, fixed by a heavy textbook on the edge of the table, a ruler hanging on it in the form of a swing.

IMPORTANT!

The pencil should be located exactly in the center of the ruler. This is called the center of gravity.

A item of certain weight is laid for one end of the line, and on the other hand, the measured load. In this way, you can weigh oversized objects, the weight of which is not more than 50 g. Due to the fact that there is a danger that the line will be broken. There is also a danger that it will turn over, the studied bulk materials will be scattered.

Using the designated principle, the simplest scales are made for more overall and significant objects. Instead of a ruler, a board is used, and in return, a pencil is taken, for example, a log.

Shoulder scales

These are non.enordular weight measurement devices, since the bowls in this case move along the bar. Such devices will help measure not only the weight of any items, but also measure any bulk products

IMPORTANT!

The bar for these scales is taken thin, and then it is more advisable to punch not a hole, but just a groove.

Next, you need to install an arrow, for example, from a needle or something similar to fix weight deviations. The next step is the same cuts on both sides of the center. the suspension point, and calibration is made. It is more reasonable to apply notes there, since in the process of measuring the weight of the bowl they can slip.

IMPORTANT!

There can also be lids from bottles, plastic cups and bowls, but here they are not fixed on the rail, but are suspended on the threads.

Simple equal.fiber scales

This option from a regular school line and pencil we all once did in physics lessons. But over time, for some reason, many have forgotten about them. And in vain, because making such scales is simple, and the result will be accurate.

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The main task is to arrange a pencil clearly in the center of the line. When the ruler lies perfectly exactly on a pencil, then you found the center of gravity. Now you need to put an object on one edge, and on the other. a load with a pre.known weight. Small objects and bulk materials weigh on the line. Their weight should not exceed 50 g. Otherwise, the ruler will break.

According to this principle, you can make scales for more difficult items. The ruler needs to be replaced with a wide board, and a pencil should be replaced with a cylindrical timber for a suitable diameter.

But still, this option is not particularly convenient, especially for bulk materials, since there is always a risk that the ruler will turn over.

How to make interesting home scales from cardboard experiment

Another version of the scales that are made in 10 minutes

Electronics for home.made people in a Chinese store.

School line is a good idea for mini lever weights.

If you have a need for accurate weights, then it is not necessary to go to the store to purchase this expensive device. Better to make scales with your own hands. In this case, their accuracy will be 0.01 g! In my opinion, this is a wonderful indicator for homemade.

First, watch the video how to make scales from a bottle:

Materials and tools for manufacturing a plastic bottle; Three bottles traffic jams; Cocktail tube; Nylon thread; Wire; Scotch; Paper; Scissors; Awl.

In the upper part of the bottle, cut out two rectangular holes. Their size should be 1 by 5 cm.

In the center of plastic traffic jams, make holes with an awl.

Tie each of the ends of the straw along the section of the thread, 15 cm long. Attach two plastic plugs to the threads. Cut the triangle from paper and fix it with tape on a cocktail tube. It should be located exactly in the center.

Bind a 5-centimeter section of the thread to the center of the straw.

Pass the straw with traffic jams through the holes in the bottle.

Tie the thread located in the center of the straw to the cork and tighten it on the bottle neck. It should turn out so that the straw hung on the thread.

Probably the “bowls” of the scales will be skewed. Therefore, you need to make calibration. Cut several segments from the wire and secure them on bottled traffic jams so that the “arrow” of the scales shows equilibrium.

Now you can use weights. As the experiments showed, their accuracy is quite high. You can weigh items from 0.01 grams. The role of the “arrow” of the scales is played by a paper triangle, and the “scales”. a thread on a straw.

Lever scales

They are also quite simple in terms of execution. For work you will need a minimum of improvised materials. They are made according to this scheme:

  • Check if you have a device that will play the role of support, for example, a driven nail or hook on the wall.
  • Take a long even cane, at least 30 cm. You can use a ruler or wooden skewer. In this adaptation, this part plays the role of a rocker.

Важно! Учтите, чем длиннее плечо, тем точнее результаты вы получите при взвешивании.

  • On skewer or ruler, mark the middle, on both sides of it measure exactly the same distances for installing the bowl.
  • At the indicated points, make the hole with a drill or awl. Attach the nylon thread in the middle.
  • The bowls can be made of an iron or nylon cover, it is also enough to simply cut a paper or plastic cup. In a circle of ready-made bowls, make 3-4 holes at the same distance, then through them pride the nylon thread, tie it. But first tie the threads going from bowls to the rods in the knot.
  • Make the arrow to determine balance. It can be cut from cardboard in the shape of a triangle, then glued in the middle of a ruler or wooden skewer in the place where the central thread is located. It is important that the stretched thread passes right in the middle of our triangle.
  • Tie the scales with a central thread to the hook or nail.
  • Slibate the product. At the bottom of each bowl, the amount of plasticine should be attached, so that the top of our triangle in a limndated state clearly coincides with a stretched thread.

Важно! Гирьки для них можно купить либо использовать самые обыкновенные таблетки, поскольку они имеют четкий вес, который указывается на упаковках. В качестве гирек также часто используют обыкновенные монеты.

How to make electronic scales yourself

Making electronic scales with your own hands is not the easiest task. First, it is necessary to carefully study the components and the principle of operation.

External components are:

  • A weighted processor, it is a separate block with a screen, keys, microcircuits.
  • The keyboard on which the working buttons “0”. “9” should be.
  • Screen.
  • Platform.
  • Hull that hides all the internal parts.
  • Adjustable legs. For measurement accuracy, it is necessary to place the device according to the level.

The measured cargo carries out pressure on it due to its gravity. Depending on the weight, the pressure force of the measured object to the platform will proportionally change. Numerical values ​​will be displayed on the screen.

Transformation of data on pressure contributes to:

Making weights with your own hands involves a careful study of each of the listed devices, their varieties, a clear definition of what is required for you.

The heart of electronic scales can be considered a tensodic. The tensoresistor, on which the tensometric sensor is based, has the property that makes it change the resistance during deformation.

There is a voltage to the tensodic, which takes an altered value at the output, interacting with the tensoresistor.

An analog-digital converter, this voltage value converts into a digital code, which then processes a microcontroller. And weight value is displayed on the screen. This happens in an instant.

There are several types of tensodists:

  • The plain is built under the platform in the center. Used in trading, floor, packing, technical and beam scales.
  • Balch tensodel. Intended, for example, for platform electronic weights.
  • A rod tensometric sensor is necessary in especially overall scales. automobile, wagon, bunker. Used when weighing goods from 20 tons.
  • S-shaped weight sensor is designed for suspended and crane weights.
  • The double beam is used when weighing goods from 10,000 kg during transport weighing.

When choosing tenshoters, take into account further conditions for its use. For high.quality functioning, they must be reliably protected from moisture, dust. Also, before installing the tensometric sensor, carefully study the connection diagram. An intact super-quality wire should go from an analog-civilian converter from an analog-civilian converter.

Setting up lever weights:

You will need a set of weights, or something with a strictly defined and pre-known accurate weight, to set up lever weights. The position of the arrow without a weight will be your zero reference. Next, just put the weight on the cup and see how much the scales will deviate. this will be your maximum measurement limit. You can maneuver the measurement limits by changing the counterweight strength (use larger or smaller counterweights)

P.S.: I tried to clearly show and describe not cunning tips. I hope that at least something will come in handy. But this is far from everything that can be invented, so dare and study the site

Shoulder

Such devices are good in that with their help you can measure not only any weight, but also measure the necessary number of bulk compositions.

Важно! От равноплечих весов они отличаются тем, что их чаши способны перемещаться по рейке, их можно устанавливать в любой точке относительно подвеса.

  • It is better to make a bar for them from a thin rail. It can be suspended if desired.
  • If you have only a thin rail, then in the middle it is recommended to make a non.hole, but a groove. An arrow-igolka is also made here, indicating the deviation of the scales.
  • Then it is necessary to measure equal distances on both sides from the suspension point, making numbering as they remove them.
  • At these points, it is better to make notches so that when weighing the bowl, do not slide along the bar.

Важно! Сделать чаши можно такие же, как мы описывали ранее, только здесь они не крепятся к планке, а подвешиваются. Взвешивание на таких весах производится с помощью обратной пропорциональности.

Weights: classes and types

All weights (or sets of weights) belong to one of the seven existing accuracy classes. They can be used to check weight equipment, other weights of smaller accuracy and directly for weighing:

Weights are divided into calibration, reference and trade.

The reference and calibration scales differ only in the scope of application and certificates of use. Their metrological characteristics are the same.

Гири используют не только для взвешивания, но и для настройки весового оборудования и проверки других гирь

Homemade scales for fairly overall objects

You can perform scales in home or camping conditions for items up to 100 kg.

For their implementation, you will need:

The design scheme itself is presented in the following scheme.

According to the scheme, it is clear that the size of 10 and 100 cm is not chosen. Data from Bbeans will need to be increased by 10 times. It is necessary to accurately place the hole on the bar 1. To suspend the subject, you can apply a clamp (a). Moving the clamp from the known weight by cargo along Bruska 1, it should be determined its correct location, secure a nail in this place. If you need scales for cargo over 100 kg, then you need to take the bars for the structure longer. But always the second one is 10 times more than the first (for example, 15 and 150 cm, then the load should allegedly weigh up to 150 kg), and multiply the prime indicators by the size of the length of the first (in the example, respectively by 15).

Giri for homemade scales

Weights can be purchased at the store. Tablets that have a completely clear weight indicated on the packaging can also serve as weights. In addition, ordinary coins can be used as a weight by experimentally setting them with the exact weight.

It was necessary to measure the right amount of something for one or two times? Because of this you should not run to the store and spend not extra money on accurate scales. In such a situation, you can do in a simple way to make homemade lever weights based on the same plastic bottle.

So, what will be needed for work: a bottle; wooden skewer 30 cm long; threads; A pair of traffic jams from bottles; matches; Paper corner.

Look at the video process of making weights

The paper triangle serves as an indicator of the equilibrium of the cups. At rest, the top of the triangle is installed opposite the thread, more precisely on one line with it. To fit the scales of cups, you can use pieces of plasticine. After aligning the cups, you can make trial weighing focusing on the approximate weights of different things.

How to make scales

If you needed scales, as an option, they can be made from improvised materials. The most accurate will be the so.called lever scales, on which weight is determined using weights. Making them is very simple.

A support for your scales can be any hook on the wall or a specially driven nail.

Now you need a long, preferably at least 30 cm, even cane. You can take a wooden skewer or ruler. In the lever scales that we do, it is called the rocker. The longer the shoulder of the rocker, the more precisely the result of weighing will be. On the prepared ruler or skewer, we mark the middle and measure the same distance from it on both sides, here you will be attached to the scales. Make holes in the designated places with an awl or thin drill. Tie a strong nylon thread in the middle.

Libra bowls can be made from any nylon or iron cover, cut a plastic or paper cup. Now in the circle of the bowl, at the same distance, make three or four holes into which you follow and tie a nylon thread. Before tie the threads from the bowl to the rod, tie them into the knot.

Make an arrow that will later indicate an equilibrium. Cut an equilateral triangle from cardboard and glue it in the middle of a wooden skewer or ruler, where you have a central thread. So that the exactly stretched thread passes strictly in the middle (bisector) of the triangle.

Tie your scales to the hook in the central thread.

Now calibrate the scales by fixing on the lower part of each of the bowls, the right amount of plasticine, so that the top that you cut out of the triangle coincides with the stretched thread now and in a limbo. Libra is ready! If you did everything right, the measurement will be quite accurate.

Using such weights is very simple. On one of the bowls you put an item that must be weighed, and lay the weights (if any) or a trifle on the other. Each coin face value has its own certain weight. When the arrow points to balance, we calculate the total weight of the coins in the bowl. This will be the exact mass of the things you are interested in. There is a simpler method, but less accurate. In one teaspoon 5 grams of water, barley cereal and 8 grams of granulated sugar. Put an item on one bowl that must be weighed, and pour sugar, cereal or pour water into the other, not forgetting to count teaspoon.