How to cut a three-liter jar at home. Master class: how to cut a bottle with a thread. Nichrome wire

Rounded glass can serve not only as a vessel for liquid, but also as a source of inspiration. With the ability to cut glass bottles and jars, you can make a lot of amazing things. From glasses and ashtrays to lamps and designer spatulas, the number of recycled crafts is limited only by the imagination. It's amazing how original and beautiful things can come out of practically free material. The main thing is the desire to create, and we will talk about the process itself in this article.

Types of glass cutters for bottles

To date, there are many ready-made devices for cutting glass jars and bottles. All of them have different design, but according to the type of action they are divided into only two groups: cutting and heating. General principle both groups remains the same - the bottle is fixed in a horizontal position and rotates around the glass cutter or heating element. The principle of operation of the devices is quite similar, but has some features.

Roller glass cutter for bottles has simple design and is widely used by hobbyists. Can be assembled with your own hands from improvised means. The cost of the finished device varies from a few hundred to a couple of thousand rubles. The cut line is quite even, but the edges require grinding. The best option for home craftsmen.

bottle cutter with heating element has a more complex mechanism, but also more high quality cut. The device is powered by mains or battery. You can assemble this, if you have special knowledge, but at your own peril and risk. Ready-made devices cost several thousand rubles and are unlikely to be of interest to most of the population. Suitable for creative workshops or designers.

DIY bottle glass cutter

It is not necessary to spend money on buying a glass cutter for bottles. This device is very simple, and if you have certain details and desire, you can do it yourself. Below, we present step by step photo instruction for assembling a convenient and practical cutter. You may have to buy some parts, but they cost a penny and are sold in any market or hardware store.

Required materials:

Wooden base: 25 x 14 x 2
Side bar: 25 x 4 x 2
End block (limiter): 11 x 4 x 2
Wooden lath: 25 x 1 x 2
Roll-out rollers: 4 pcs with a maximum diameter of 4 cm (preferably non-rotatable with a rubber coating)
Cable channel: 25x2 (with minimum thickness)
Roller glass cutter
A little PVA glue and a handful of screws

Device assembly
We will start with the most difficult and jewelry stage of work - the assembly of the cutting mechanism. We take a wooden rail 25 x 1 x 2 and saw off two pieces from it, 3 cm long. In the resulting pieces of wood, carefully make through longitudinal holes. They will serve as grooves for installing the hinge, on which the guide with the glass cutter will go.

From the same rail, cut off another piece, 9-10 cm long, and arrange all the details as in the photo below. We cut the cover of the cable channel to a length equal to the size of three wooden parts(2 pieces of 3 cm each and the width of the rail - 2 cm), by about 8 centimeters.

In the next step, we fix the cutter on the guide. To do this, it is better to make a small recess at the end of the rail, which will serve as a kind of limiter for the glass cutter.

To prevent the wood from cracking when the self-tapping screw is screwed in, at the attachment point, a hole should be made in advance with a drill of a smaller diameter.

If on your self-tapping screw, as well as on the cutter with a photo, there are notches for breaking off glass, then you can use them for fastening. If there are no grooves, or they are located further than the cutting roller, then it is better to drill a mounting hole in the metal head. In general, the main thing is that the glass cutter is installed as in the photo.

After securing the cutter, it's time to assemble the structure together. To do this, we fasten two bars of 3 cm along the edges of the cable channel cover. In pre-prepared grooves in the bars, we twist self-tapping hinges, no more than 4 centimeters long (long ones can be cut off). At the bottom of the guide rail we drill through hole, install it between the bars and fix it with self-tapping screws. In order for the rail to rise, its lower corner must be smoothed out with sandpaper or a file. Look at the photo and repeat.

Having finished with the design of the cutting mechanism, you can proceed to the assembly of the working platform of the future bottle cutter.
First of all, we attach a 25 x 4 x 2 side bar to the base. You can connect these parts using self-tapping screws by screwing them with reverse side grounds. You can also use PVA glue or epoxy resin.

When the side part is fixed, you can proceed to the installation of roll-out rollers. The first pair of wheels is installed at a distance of 3-4 cm from the top edge of the base. The next pair is located 12 cm down. For longer bottles, another set of holes can be prepared, 5 cm below the second pair of rollers. Pay attention to the photo.

The final stage of the assembly will be the fastening of the lower part of the cable channel to the edge of the side bar, and the landing of the end stop on self-tapping screws or glue.

With a slight movement of the hand, we attach the cover with the cutter to the base of the cable channel and the device is ready for use!

Another way to attach a glass cutter.

How to cut a bottle without a glass cutter

Compact bottle cutter - the device is very convenient, but it is made for frequent use. What to do for those for whom this procedure is unique and will not be repeated in the next decade. Buy finished device expensive, but it takes a long time to assemble and it’s not a fact that it will turn out as it should. As you already understood, now we will talk about how to cut a bottle at home without a glass cutter.

This method of glass processing is based on heating with rapid cooling. For a sharp change in temperature, we need a meter of woolen thread, a flammable liquid (acetone, gasoline, kerosene, alcohol), a large container of ice water and, in fact, a bottle. Having prepared all the components, you can get down to business.

We dip the woolen thread into a container with a flammable liquid so that it is completely saturated, and wind it with a thin line at the place of the future chip. Next, we set fire to the thread and wait for it to completely burn out. While burning, we hold the bottle horizontally, and constantly rotate it so that the fire evenly heats the entire line. As soon as the flame goes out, immediately immerse the bottle in a prepared container of water. After a couple of seconds, a characteristic sound of broken glass will be heard, signaling the successful separation of the bottle. If there was no click in 5 seconds, you can apply a little force and try to break it.

The above technique can be successfully applied to the controlled breaking of most types of glass containers, but sometimes there are exceptions. The effectiveness of the temperature difference depends largely on the strength of the glass.

For those who want more good example see how to trim glass bottle at home without a glass cutter, we recommend watching the following video.

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Everyone is well aware that when going on a hiking trip (hiking, water, equestrian) in sparsely populated places, we always forget to take any important trifle with us, but ... if you get lost in the forest, be sure to read. But it is also well known that for our tourist this is not a reason for discouragement. Because in such cases, he is almost always rescued -

Here, let's say you took with you a very sufficient supply of glass bottles with different contents, but forgot to grab mugs and glasses. They didn't even take a glass! A civilized western tourist would consider that the event is hopelessly spoiled and should be returned. But not you, because you are our tourist, and you have no doubt: something from the field of handicrafts will save you. Carefully examining the empty bottle, which you hold by the middle part, you notice that the bottom of the bottle is in the shape of a glass, and the top is in the shape of an overturned glass. And that's it, problem solved! Further - a matter of technology: it remains only to cut off the bottle in the middle. It is clear that a glass cutter is not taken on a hike, but you remember the trick you once saw with cutting off a glass bottle with a thread. And the focus was as follows. The bottle was tied with a thread soaked in kerosene, the thread was set on fire, and when it burned out, the bottle was sharply immersed in cold water. Here it cracked just along the line of burning of the thread, and it only remained to carefully separate the halves of the bottle.

And so, the disclosure of focus - bottle cutting(from the heading "handmade crafts")

Without delay, we get down to business. Starting with preparation necessary materials and tools. This:

- Glass bottle;

- a long strong thread;

- kerosene or lighter fluid (or other combustible liquid);

- a bowl of cold water (or a pond on the bank of which you made a halt);

- matches or a lighter;

- a tablespoon for tapping on the bottle;

- protective glasses;

- a brick or stone with a rough surface to remove sharp notches on the cut (it’s very good if a small file is accidentally lying around in the bushes, whetstone or sandpaper - zero).

Then we go to main procedure .

1. Cut off the thread desired length(2-3 turns around the bottle plus tying a knot), soak it for a couple of minutes in a flammable liquid.

2. Very carefully, trying not to smear the flammable liquid on the glass outside the cut line, tightly tie the thread in 2-3 turns around the bottle along the intended cut line. At the same time, make sure that the strip of thread is of the minimum width, and that the knot is also of the minimum size. This will ensure a straight cut edge.

3. Put on safety glasses. Holding the bottle horizontally above the basin or above the surface of the reservoir at a safe distance from the face, set fire to the thread and slowly turn the bottle around its axis. This is so that the thread burns, if possible, simultaneously along the entire circumference. Let the thread burn out completely - until it burns out completely by itself.

4. Then immediately dip the whole bottle into cold water, holding it with your hands by the bottom and by the neck. As a result of a sharp change in temperature, the glass will crack exactly along the line of combustion of the thread (which is why the layer of thread on the bottle must be narrow).

5. If the glass does not break by itself, then you gently tap the working part of the spoon (which is on the side of the mouth) along the glass cracking line (the spoon should be at hand so as not to miss the moment). After that, the bottle is divided into a glass and a glass.

6. Smooth out any protrusions on the edges of the cut parts with a brick, file, etc. Of course, do this in the water so that small fragments of glass and brick do not scatter in the wind, aiming at the eyes. At least the glass should be sufficiently wet. Having finished grinding the edges, you get a wonderful glass and a pretty glass for use. Just do not forget to plug the bottom of the glass with a cork (that is, the neck of the former bottle).

7. Hand crafts using fire require compliance with fire safety requirements. Therefore, make sure before starting the entire procedure described that you have everything you need in case of a small fire. Water is at your fingertips, it remains to have some kind of dense cover just in case. And, more importantly, you start the operation only after you have completely sobered up, otherwise you can neglect fire safety and burn something.

When you learn how to cut a glass bottle well with a thread, you can use this skill to make other handmade crafts from bottles to decorate your home. It can be a flower vase, a table lamp, a champagne flute. At home, you will even have a diamond-coated file for grinding the cut line, not to mention fine sandpaper. You can cut the bottle not only parallel to the bottom, but also at any angle. The cut line can be pre-drawn using an elastic band for money and a felt-tip pen.

Useful articles

Hello dear readers! Decor from glass bottles, quite popular lately, by the way, this topic we have already considered in the review "", and since many are interested in the question of how to cut a glass bottle at home, without using a glass cutter, I want to dedicate today's master class to a simple but interesting way to cut a bottle with a thread ...

In this connection, the topic of this master class is “How to cut a bottle with a thread - nothing complicated!”.

For work we need:

Glass bottle;
Woolen threads;
Solvent (you can kerosene, alcohol, cologne, acetone);
Scissors or stationery knife;
Gloves (will protect the skin of the hands from exposure to the solvent);
Lighter or matches;
To protect the eyes, just in case, goggles (in fact, there are no fragments, but caution is never superfluous);
Deep basin filled with cold water.

So, how to cut a bottle with a thread? We take a woolen thread, measure and cut it in such a way that it is enough for 3-4 turns of the bottle.

We immerse the measured and cut thread in the solvent, and immediately wrap the bottle in the place where it is planned to make an “incision”. You can simply wrap the thread or tie it in a knot, in this master class I just wrapped it.

After that, we set fire to this thread with matches or a lighter, and it is better to keep the bottle in an inclined position - strictly horizontally (parallel to the ground), gently scrolling around the axis.

The fire will burn for about 30-40 seconds, as soon as the lit thread goes out - quickly lower the bottle into the prepared basin filled with cold water.

Next, the characteristic sound of cracked glass will be heard, and the bottle will instantly split into two parts. This type glass cutting is based on a rapid change in temperature, we all know from the lessons of physics that glass expands when heated, and narrows when cooled, respectively, with a sharp change in temperature, a kind of glass destruction occurs and it simply cracks!

Hello dear readers! The decor of glass bottles has been quite popular lately, by the way, we already considered this topic in the review “Bottles in the interior: they found a use for them!”, And since many are interested in the question of how to cut a glass bottle at home, without applications glass cutter, I want to dedicate today's master class to a simple but interesting way of cutting bottles with a thread ...

In this connection, the topic of this master class is “How to cut a bottle with a thread - nothing complicated!”.

For work we need:

Glass bottle;
Woolen threads;
Solvent (you can kerosene, alcohol, cologne, acetone);
Scissors or stationery knife;
Gloves (will protect the skin of the hands from exposure to the solvent);
Lighter or matches;
To protect the eyes, just in case, goggles (in fact, there are no fragments, but caution is never superfluous);
Deep basin filled with cold water.

So, how to cut a bottle with a thread? We take a woolen thread, measure and cut it in such a way that it is enough for 3-4 turns of the bottle.

The fire will burn for about 30-40 seconds, as soon as the lit thread goes out - quickly lower the bottle into the prepared basin filled with cold water.

Next, the characteristic sound of cracked glass will be heard, and the bottle will instantly split into two parts. This type of glass cutting is based on a rapid change in temperature, we all know from the lessons of physics that glass expands when heated, and narrows when cooled, respectively, with a sharp change in temperature, a kind of glass destruction occurs and it simply cracks!

We figured out how to cut a bottle with a thread, but how to process sharp glass edges? You can use sandpaper or stone to sharpen knives. Last, you should process the edges of the bottle, previously immersed in water, so the processing is easier and faster (it is better to protect your hands with rubber gloves). Friends, please do not forget about the notorious safety precautions, after all you will work with fire and glass, goggles on your eyes, gloves on your hands and a basin with big amount water is a must!

How to cut a bottle with a thread (video):

Dear readers, now you know how to cut the neck of a bottle, but if you have any additional questions, ask them in the comments! In the next master class, we will make a vase from the received bottle, so as not to miss the release of a new article, subscribe to site updates.

Show the answer to the riddle »

Today, every day more and more gaining momentum " hand made" creation. Very often, needleworkers use glass bottles in their creations. They make vases, lamps, coasters, etc. out of them.
I will show you a very simple way to cut a bottle cleanly in almost a few seconds.

All we need is nichrome wire, 12 V battery and cold water.

We cut the bottle

First you need to determine the location of the incision. To make it even, take a piece of paper and wrap the bottle around it. Align the edges of the sheet so that the line is even. Then take a felt-tip pen or marker and draw a border around the edge of the sheet. Now the leaf can be removed.

Next, you need to take a piece of nichrome wire with a diameter of 0.5 mm, attach one end to a stationary object. For these purposes, I use a black weight. We immediately attach one wire from the battery to it.

We make a coil around the bottle. And align to the trail of the marker.

In order not to get burned, take the wire with pliers. Pull just a little to straighten the wire.
Apply voltage to the other end of the wire.

It can be seen that the wire is hot. In places of contact with the bottle, the wire does not completely turn red, as the bottle takes away heat.

We wait without moving the wire and holding it in tension for about 30 seconds.
Then we quickly remove the wire and sprinkle the place of heating with water. You can also prepare a bucket of water and dip the bottle into it.

You will hear a peculiar click of glass, and the bottle will burst exactly along the line where the nichrome wire passed.

Everything is explained simply: during the heating of a certain place in the glass, internal stress. After rapid cooling, the glass surface is rapidly cooled, and its inner part it stays warm. As a result of such a sharp change, microcracks appear, which instantly turn into a split.

Such a trick can be done not only with round bottles, but also with square, oval, etc. bottles.