How to learn to cut at a 45 degree angle with a circular saw - tips for beginners

Mullvatt July 26, 2016Specialization: Capital construction work (laying a foundation, erecting walls, constructing a roof, etc.). Internal construction work (laying internal communications, rough and fine finishing). Hobbies: mobile communications, high technology, computer equipment, programming.

It's not the gods who burn the pots!

When you have all the necessary tools at your disposal, you don’t think about how difficult it is to correctly perform certain routine operations. For example, do you know how to cut a pipe evenly with a grinder? It was this request that my neighbor in the garage came to me with, who, unlike me, was not used to doing much with his own hands.

It turns out that after dismantling the water supply in his apartment, he was left with a large number of unnecessary pipes, from which his wife decided to make a greenhouse in the country. I don’t know why he needed to cut the parts exactly straight, but I gave him all the necessary recommendations.

And at the same time, I thought that other people who do not have a professional pipe cutter in their arsenal would need instructions that describe how to cut a pipe at 90 degrees. That is why I have prepared the material that I bring to your attention today.

Video: How to Cut with a Circular Saw at 45 Degrees

When purchasing, be sure to pay attention to such an indicator as the depth of the saw
Note. The cutting depth of the saw blade ranges from 30 to 130 mm.

You need to know what thick boards you need to work with. The choice of saw is also very important. For a neat cut, a disc with a large number of teeth is suitable. If the disc has sparse teeth, the cut will be faster, but the cut will be rougher.

Sections with such a saw are usually smooth and practically free of chips

How to make a 45 degree cut?

This angle is found in the manufacture of various products. Let's start cutting. First, the saw blade moves ninety degrees. Depending on the model, there is a red bolt on the side that needs to be unscrewed.

The soleplate is then rotated to a 45 degree angle and secures the bolt back. Take a piece of chipboard as a blank. We secure it with clamps to the table top so that the part is cut out of the table.

After setting the line. It is usually included with the circular saw. The saws have 2 marks zero and 45. We will cut 30 millimeters, for which we combine three on a line with a mark of forty-five on the sole. Then tighten the screw that secures the ruler.

Next, the sole should be positioned so that the ruler rests on the edge of the workpiece. The saw starts and, after it is completely unwound, presses the ruler firmly against the edge of the workpiece and moves forward.

Seeing advice

If you cut the edges with a chip, you should do the following:

• Take a small sheet of 6 mm fiberboard.
• Glue this sheet to the base using adhesive tape.
• With the saw running, we plunge the blade into the rigid board to create a recess with zero clearance.

Accurate cutting pattern

How to make a cut? The device was made with a slight fit, after pressing the circular stop we sawed off the edge of the base to the desired length. The saw blade defines the cutting line for the circular saw.

The board is marked instead of a saw. Pressed with a lower accent to match the board, the edge is aligned. By having the saw go through the device first, cutting boards are more precise.

Make a straight cut using a circular saw

To create a guide, we take a piece of plywood from twenty-five to thirty centimeters wide. It must be secured along the intended cutting line.

If you need to cut long materials, it will take a lot of time to measure and set the straight guide on the marking. To simplify this process, you can make a template yourself, for example, from fiberboard. The edge of the template is aligned with a mark on the workpiece and there is a straight guide attached to the back that needs to be secured with a clamp.

You can even use a similar pattern to use a jigsaw or router bit.

Kinds

Varieties of pipe cutters are classified depending on the objects being cut and the characteristics of the cutting element. Accordingly, the following types of tools are distinguished:

1. The cutter cuts pipes up to 100 mm in diameter. Suitable not only for steel, but also for plastic pipes, Has several steel discs.

The chain one is distinguished by the fact that it can cut pipes made of dense materials (cast iron, concrete, ceramics), since it has a mechanism for tightly fixing the cutting object, made on the basis of a conventional chain and rotary levers.

Video instructions: how to work with a pipe cutter.

1. The roller is equipped with cutting rollers (from 1 to 3) and guide elements, and the diameter of the pipes that it can cut directly depends on the number of rollers: a device with 1 roller cuts pipes up to 50 mm, and with 3 rollers – up to 100 mm and even more .

The telescopic one has a carriage, roller and guides that can optimally fix the pipe depending on the required cutting angle.
It copes well with cutting thick pipes or made of durable materials, since due to the configuration it can create strong pressure on the surface of the cutting object. The ratchet pipe cutter is portable and can cut thin pipes. Its design is the simplest among devices of this class - 2 handles and a cutting blade.

Electric equipped with an electric motor

due to which the worker’s efforts in cutting the pipe are minimal - it is only important to configure the tool correctly, he will do the rest of the work almost independently

At the same time, it is a universal tool - it cuts pipes of any diameter and from any material. Application is limited only by engine power. However, such a pipe cutter also has a significant drawback - it will be inconvenient to use in hard-to-reach areas of work (for example, sewer pipes).

With its help, you can not only carry out mechanical cutting of pipes, but also carry out work on their trimming, chamfering with blunting, as well as from the outer surface of the pipe.

Video overview of one of the models

Guillotine got its name because of the design of the cutting mechanism. Its knife makes a perpendicular cut in pipes of small diameters (up to 30 mm). The pipe is fixed in the frame, and the screw pushes the guillotine and makes a clear cut at an angle of 9 degrees. The tool is suitable for cutting pipes of different thicknesses and structures (single-layer, multi-layer, reinforced).

A pneumatic pipe cutter is driven by rarefied air pressure. This device is used in production for cutting pipes with very large diameters (up to 1500 mm). At the same time, it copes well with cutting dense materials (cast iron) and light plastic.

Orbital pipe cutters are designed not only for mechanical cutting of pipes, but also for chamfering thin-walled pipes. For this purpose, they are equipped with special chamfer cutters.

Often, add-ons are offered for various types of pipe cutters to ensure the safest conditions for working with pipes. Thus, using the quick crimping mechanism, you can quickly secure large pipes in the device without using a special screw. The pipe cutter can also be equipped with additional removable cutting elements designed for pipes of various thicknesses, and rollers that move the device around the pipe.

Important features when choosing the right blade.

If you are a beginner and don't have the services of a circular saw expert, choosing the right blade can be a little daunting. There are different types of saw blades designed for different materials, types of cutting, and for different power saws. Then one of the most important characteristics when choosing is the diameter and type of blade. You just have to make sure that it is compatible with your circular saw model.

Here's a quick guide to help you find the right sheet:

• Hand saws accept smaller diameter blades, typically 4 to 7 inches;
• the saw will require a diamond blade with a diameter of 7-10 inches;
• table saws require 10 or 12 inches, and table saw blades must have a carbide tip;
• For cutting metal, 14-inch blades are typically used.

Another important feature is the RPM (or revolutions per minute). For example, smaller sheets have higher rotations and larger sheets have lower rotations. The recommended saw speed should be lower than the recommended blade speed

Please note that a saw's RPM does not directly indicate its cutting speed, so higher RPM does not mean it will cut faster

The diameter of the blade will affect the speed because the edge of the larger blade will move faster compared to the edge of the smaller blade as it covers more distance at the same time. On the other hand, don't rush to select a larger blade, as you also have to consider the desired cutting quality. So when looking for a suitable RPM indicator, consider the material you will be working on.

To do this, you must calculate the SFM, which is equal to Surface Foot Per Minute. The formula is as follows:

SFM = (diameter / 12) * O * RPM

Typically, you will need an SFM of 5,000 to 8,000 for wood materials, and less than 1,000 for metals.

Also pay attention to the cut line indicator when selecting a tool. This is so you can see where your sheet is going as you cut.

Without this, you will have a harder time cutting a straight line. The cut indicator is usually located on the motherboard and looks like two small notches. However, in some cases you may not be able to see the crop indicator. For such cases, a small window that shows you where the leaf is is helpful, so look for it. Feel free to grab the tool and see if it feels comfortable.

Next, take a look at the motherboard. What material is it made of? Magnesium base plates are more stable, but can break if you drop the saw. On the other hand, an aluminum base plate can flex when you need it most, while plastic base plates are stable and impact-resistant.

Regardless of the material, the base plate must be flat in length and width and have a straight edge. At the end, take a look at the guard. Guards with sharp or rough edges can get stuck on wood surfaces during cutting and make lifting difficult.

When it comes to what you are going to cut, you should also pay attention to the type of blade. Different types of materials work better with different types of blades

For example, there are blades designed for cutting wood, plastic and acrylic, metal and several materials. Here are some types you may need:

• Rip Cut is wood cutting; Consequently, cutting blades are designed to cut along the grain: these blades have fewer teeth, specifically designed for aggressive cutting;
• The cross-cut blade is designed for cutting grain and has 40 to 80 teeth designed to provide a clean cut;
• Combination blades are used to make both crossed and ripped cuts as they have groups of teeth separated by a throat.

Since the teeth make a cut larger than the disc itself, its shape and quantity must be taken into account. This is another aspect of the blade that will affect your cutting performance. The more teeth, the more accurate the cut will be. Additionally, the shape of your teeth determines the quality of your cut. For example, the alternative top bevel type is suitable for quick cuts in rough wood that are along the grain. Multi-material blades are good for cross-section, and radial arm blades have a negative angle to avoid automatic feed.

Cutting upon purchase

If you buy reinforcement in a store or warehouse in small quantities, ask workers to cut it into pieces of the length you need right there. Typically, many sellers provide this service (for a fee or free of charge), trying to attract as many buyers as possible, since cutting reinforcement in this “method” is much more profitable:

• you don’t have to look for a car and transport long reinforcement bars;
• the reinforcement will arrive at your construction site already cut into pieces of the required length, and you can immediately start working with it;
• you do not need to cut the reinforcement yourself and look for the necessary tools for this.

Just remember to calculate in advance the number and length of reinforcing bars you need.

Tools used

There are several ways to cut a pipe; for this, construction and industrial tools for metal processing are used. Of all the types, only the grinder allows you to obtain curved surfaces without further processing with the closest arrangement of edges.

For individual use

The following tool is used for cutting steel pipes at home:

Manual pipe cutters. Allows you to cut round parts with an even, right angle of cut due to the cutting edges of the rollers. There are several varieties of products of this type, consisting of single rollers or a series of rollers attached to a chain. In everyday life, such devices are quite rare and are more suitable for professional work.

Bulgarian. It is a universal tool for cutting any metal parts with different angles; special metal discs are used for the work, which are ground down quite quickly during operation. This allows you to accurately cut a curved line with a small diameter disc.

Rice. 7 Customized pipe cutting tool

Gas-burner. A quick and effective method of cutting metal surfaces with a hot jet of flame; the disadvantages include melted edges, which complicate further welding. It is difficult to use a gas torch to cut a product according to a paper template, which will burn, and if a line is drawn, then it will practically not be visible in the stream of flame.

Electric pipe cutters. To work with pipelines of small diameters, you can use compact electric pipe cutters, whose operating principle is similar to a grinder. The device is called a roller machine; during operation, the part is mounted on a bed and rotated on roller guides; its surface is cut from above by an electrical device. The main difference between a pipe cutter is the metal disc, which has a special durable coating for cutting metal.

For industrial use

In industry, large-diameter pipelines are used to transport liquids and gases, so pipe cutting units are heavy and have large dimensions. There are also manual pipe cutters of the rotary and clamp operating principle. In the first case, the cutting rollers rotate along a round surface using an adjustable handle; in the second version, cutting is carried out by arcuate plates, which gradually move during rotation.

Rice. 8 Industrial pipe cutting equipment

How and with what to cut pipes of different sections and materials: options for solving the problem

The latter is preferable, because it is attached directly to the surface and does NOT move.

The sequence of actions looks like this:

• Using a tape measure, measure a piece of the required length, mark this place with a line with a marker.
• Next, stick tape along the resulting mark around the circumference of the pipe. The smoother you apply the adhesive tape, the better - it is optimal that the wide edges meet as accurately as possible. This will allow you to make an accurate cut of the pipe according to the mark.
• The next step is to secure the pipe in a vice or press it to a flat plane so that it does not move during work, and an even seam is obtained. Note that one end of the pipe must be left in a free position so that during the cutting process the disk is NOT pinched by the walls. Cutting starts from top to bottom.
• The last thing you need to watch is how to cut the pipe evenly with a grinder. To do this, you need to guide the disc as accurately as possible along the edge of the adhesive tape.

In cases where tubular products with large sections are being cut, the work must be done in small sectors. To do this, the pipe will have to be constantly rotated around its axis after completing the next cut.

When working with cast iron pipes, the scheme of actions will be slightly different. First, a continuous cut is made along the entire diameter of the product, then, using a chisel and a hammer, the resulting groove is gradually tapped, as a result of which the pipe should split strictly along the cutting line of the cut.

Technology for cutting pipes at right angles

If we exclude the options used in industry - dies with mandrels, devices for radial cutting - then there are not many solutions available to the home craftsman. In any case, you will need either a hacksaw or a hand grinder. The adjustment is facilitated by the fact that the tubular product always has only linear contact with the cutting plane.

How to saw off a metal pipe smoothly? It is enough to firmly clamp the metal workpiece with parallel clamps, mark the cutting area with a marker and cut it to size. Of course, within the gaps between the hacksaw blade and the mounting bases of the hacksaw, play is always possible, resulting in a burr on the joint surface. If subsequently the inclined section of such a joint is joined to another element of the pipeline using manual arc welding, then this is not a problem: everything can be corrected (within reasonable limits) by changing the thickness of the weld. Otherwise, you should simply select a new tool and constantly monitor the marker markings during the cutting process.

It’s even easier to cut the end using a pipe cutter (it’s inexpensive, in extreme cases you can borrow it from a more skilled neighbor). This tool is equipped with a special screw-type feeding device. The sequence of actions using a single-roller pipe cutter is as follows:

1. The surface of the workpiece is thoroughly cleaned of traces of dirt, grease or scale.
2. The divided area is tightly compressed with jaws (if the pipe is made of soft metal, for example, aluminum, it is better to place a rubber corrugated plate between the jaws: the clamping friction will increase).
3. By rotating the feed screw, the cutting roller is gradually inserted into the wall until the roller cuts through it.
4. Change the position of the round pipe, rotating it 1200 so that the cutting roller comes into contact with the new cut section, and repeat the transition.
5. We perform one more reinstallation - and the straight section of pipe is ready. All that remains is to clean the areas of the overlap.

There are three- and four-roller pipe cutters, where the cutting process is quite simple, since the number of reinstallations is correspondingly reduced.

How to cut steel pipe at 45 or 90 degree angle? First, you should check whether the pipe cutter you already have is suitable for sawing a particular part. The following are taken into account:

• Strength limit of the material;
• Diameter or wall thickness;
• The condition of the cutting edges of the roller/rollers and the gaps in their axes.

Note: In especially critical cases, you should first practice on an unnecessary piece of pipe.

Industrial equipment

In professional construction and when working with large engineering projects, the question of how to evenly cut a large-diameter pipe is solved by using special equipment. Quite often these are stationary units with a certain set of qualities.

Among the most interesting and functional devices are the following:

• Lathe of various modifications. Using such a machine, you can evenly cut a profile pipe for both ordinary water supply and especially durable products through which liquids with an aggressive environment will pass.

The maximum cross-section of the pipe processed will vary depending on the distance between the support heads and the diameter of the holes in the spindle. These units can be called universal, because they can carry out cutting, chamfering, and also carry out a number of other actions, often in automatic mode.

• Belt type cutting machines. Such units are used for cutting pipes of water supply or sewer lines, previously laid in trenches or installed in a building.

The cutting belt machine can process pipes, even those that have undergone quite severe deformation. Additionally, such a cutter can chamfer the required shape.

• Cutting machines with circular knives. Equipment of this type is capable of cutting pipes from any metals, including non-ferrous ones. In addition, they have restrictions on the shape of the product - they can be either round or profiled, with a fairly large cross-section.

As a rule, such units are installed on conveyor belts and are additionally equipped with a machine that, after cutting, collects and packages a given number of pipe sections, which will then be sent to customers.

• Cutters with manual disks. They are used mainly in cases where cutting a large number of pipes is required directly at the places where they are laid. These machines have a special clamp that tightly grips the pipe during cutting, preventing its displacement and deformation. Thanks to this quality, such equipment can be successfully applied to metal-plastic, copper or steel pipes.

A number of disk-type cutting machines have a built-in orbital cutting and rotation system, which allow cutting and subsequent joining of parts with one mechanism. Such a device can be very useful if it is necessary to perform a very large amount of work on cutting, welding or joining pipes, rather than having stationary equipment.

However, such a multifunctional device is necessary if you have a small amount of work to do, and does not require complex mathematical calculations and compliance with standards.

Often, cut pipes evenly using simple improvised tools, which every owner has.

Advantages of tile end sharpening technology

The development of sharpening the ends at 45 degrees eliminates the need to use decorative corners when finishing external corners. Thanks to this, it will be possible to make the wall look neat. Such corners have a more discreet and elegant appearance than those trimmed with corners. Agree, this is much more exciting than tiles laid on tiles or plastic inserted.

Electric tile cutter

A tile cutter is a machine for cutting tiles at 45 degrees, also for cutting them longitudinally and transversely. This device has a water cooling system. In addition, water helps to remove virtually all the dust that occurs during the cutting of porcelain stoneware or clay tiles. The main advantage of a tile cutter is its accuracy. He cuts one at a time, following a previously given line of movement. This allows you to eliminate the influence of reasons such as trembling of the master’s hands. In the end, the cut comes out very even and careful.

Tile cutters can cut at almost any angle. True, craftsmen often cut tiles at an angle of 90 degrees or 45 degrees.

What tools are used to cut pipes?

At first glance, it may seem that cutting pipes is a fairly simple process and not worth special mention. However, this is not quite true. It’s one thing when you don’t need precise, even cuts at an angle of 90º or any other, since further quarrel or joining of the ends will NOT be done. And it’s a completely different matter when you need to make an absolutely precise cut. Please note that if you need to cut oblique ends at an exact angle, you should consult with an experienced craftsman.

Separately, it is worth mentioning pipes with a large diameter, when joining which a cut of exactly 90º must be ensured. Be that as it may, all these operations are performed using special equipment.

90 degree cutting

To cut a round pipeline or metal profile of rectangular cross-section evenly across, use a sheet of plain paper. They wrap the workpiece so that the edges of the paper sheet coincide, after which it is fixed to the part using tape or glue. Using a grinder, a thin line is drawn near the edge of the paper sheet, after which it is gradually deepened until it is completely cut out.

Collar insert

To obtain branches of metal pipeline lines in the form of tees, a collar insert is used, for which it is necessary to cut the edge of a round pipe adjacent to the walls of another at a right angle. To implement the method proceed as follows:

• cut the edges of the workpiece at right angles using the previously described method.
• On the round end surface, a marker marks four equidistant points located at angles of 90 and 180 degrees to each other.
• The size of the circle is measured, the resulting diameter is divided by 3. The resulting distance is plotted from two diametrically located points, after which these points are connected to two others by a smooth arc, drawing a line with a marker.

Fig.5 Example of a collar section of a pipe

According to the markings, a cut is made with a grinder and semicircular segments are separated, after which the part is ready for welding. If there are minor inaccuracies in the mating, it can be compacted with a sledgehammer, placing it against the round surface of another element.

How to cut into a plastic pipe

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Soft polymer pipes have less resistance to mechanical stress, so flange connectors are not often used. If you slightly tighten the coupling, the channel will begin to deform, which will lead to subsequent destruction of the connection from delamination and depressurization of the unit. Based on this, only two ways are considered to cut into any type of plastic pipe (PP, HDPE, cross-linked polyethylene, PVC, metal-plastic). This is the installation of a pipe or fitting.

Insertion with pipe installation

You can make your own pipe from a standard tee into a polypropylene pipe. The base of the product is cut off, the working part remains a bend on a semicircular sole. The resulting part is secured with metal clamps.

Installation of the pipe

This approach is relevant if it is impossible to solder the splitter. More often than not, they crash into a plastic sewer pipe or a riser in a storey building.

To install the pipe, you need to drill a hole in the main line, which must first be disconnected. It will be easier and faster to use a crown-type drill. All contact points must be treated with silicone sealant to prevent leaks.

Installation of adapter and saddle

Insertion into plastic pipes can be done with special ready-made fittings, which are fixed to a solid channel using a flange or sealant. Products are distinguished by the presence of a shut-off valve, cutters with a safety valve, a threaded outlet or a plastic one. That is, using such connections, you can cut into a sewer pipe, riser or other polymer channel. The main thing is not to overdo it with pressure on the walls.

For small (32-40 mm) diameters, “saddles” are used, and for large (100-110 mm) diameters, adapters are used. Installation of such parts is carried out by analogy with pipes; the differences are only in the presence of a sealing gasket and methods of fastening.

Sectional “saddle” on plastic

Connection of asbestos-cement pipes

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Mineral pipes with asbestos fiber reinforcement are connected using special fittings. The choice is determined by the operating pressure inside the line, as well as its diameter. According to the material design, the elements used are distinguished as follows:

• in the gravity channel, thick-walled couplings made of chrysotile cement are used;
• in channels for gas transportation and water pipelines, it is important to install a cast iron flange element of the “Jabot” type;
• To construct a path with a diameter of 100-300 mm in normal soil under communication cables, polyethylene couplings (MPT) are used.

There are also double-breasted asbestos-cement connectors for channels with a pressure of less than 3 kgf/cubic meter. cm. Each option is equipped with a rubber seal, is easy and quick to install, is inert to aggressive operating conditions, and has high strength and density.

Insertion into an asbestos pipe

It can be difficult for an inexperienced craftsman to tension the connector. In this case, experts recommend lubricating the outer surface with a soap solution or a self-prepared paste. It contains water (15%), graphite (40%) and glycerin (45%).

It is also worth noting the fragility that is characteristic of asbestos cement. This must be remembered when inserting an additional branch into the main channel. Care must be taken while drilling.

Composition and features of the material

To understand how to properly cut a plinth, you need to understand its composition. This will help you choose the right tool and cutting technology.

• Styrofoam. The price and strength of this material are the lowest. But since we are creating a decorative decoration for the ceiling, strength is not particularly required.
• Ceiling plinth made of polystyrene foam is more dense. than regular foam. To cut such material, the most ordinary knife is used.

Tip: sharpen the knife well before use. This will eliminate the presence of torn edges at the incision sites.

How to cut a skirting board straight

Tree. Here you will have to put more effort into processing. For wood, use only a hacksaw.

Reasons for tapping into the sewer system

Entry into the sewer is necessary in the following cases:

• If you need to connect a new plumbing fixture. This could be a washing machine or dishwasher, sink, toilet or bidet, the outlet pipes of which are connected to a line of a larger diameter.
• Transferring previously installed plumbing equipment to another location. The situation often arises during redevelopment, installation of a new vent riser, or separation of combined sanitary facilities.
• Connecting a private house to the central sewer system, which may require coordination of installation time with utility services.

What is a miter box for?

A miter box is a hand-held carpentry tool for precise cutting of boards and other lumber at the required angle. When making a wooden frame, installing platbands and baseboards, or performing any other work related to cutting boards, you will definitely be faced with the need to create a perfect corner cut - the so-called miter joint. In order for the joints of the parts to fit tightly and have no gaps, the cutting angle must be as accurate as possible. Here a miter box becomes an ideal assistant.

There are several design options for this device. In our article we will dwell in detail on the main types of miter boxes, tell you how to choose and correctly use this hand tool to create a flawless burr.

We measure

The first method is not entirely convenient, but quite accurate. Suitable if you are “in the tundra” and have nothing at hand except a pencil and tape measure. I had to use it a couple of times. The diameter of the pipes does not matter.

An important condition is the presence of a flat plane near the cut. This could be the edge of a pipe, a socket, a put-on or welded-on coupling, a seam, or any other concentric circle.

We mark the place of the cut with a risk. We measure the distance from the mark to a flat plane. We rearrange the tape measure along it and make risks in a circle, using the given size. We get a circle from the marks.

Methods for cutting metal products at an angle

Conventional perpendicular cutting at 90°, using a grinder, is carried out quickly and efficiently, if you do not neglect the advice of specialists.

Many people believe that if a large tool with a large powerful disk is used for sawing, then there is no need to apply markings. Experts do not recommend sawing without marking, because after cutting the parts may not align.

Features of cutting a cylindrical pipe at 45

Most often, making a cut at an angle of 45 degrees is required when installing heating or plumbing systems. The main difficulty in carrying out the work is that after combining the cut parts of the pipe, a right angle of 90 degrees should be obtained. A simple way to prepare a homemade pattern will help you achieve the quality of the cutting process:

• Prepare a plain white sheet of paper.
• Fold it diagonally.
• The protruding part of the sheet must be cut off with scissors so that when unfolded you get a square.
• The resulting triangle must be wrapped around the pipe so that the long side runs parallel to the section.

A paper template is great for cutting metal products in the middle.

Paper template

The resulting triangle, folded in half, must be divided into two parts. Then the templates need to be wrapped around the pipe and secured with tape or tape. The templates should be positioned so that one edge of the base coincides with the second.

Use scissors to round the top corners of both templates. The resulting two blanks of the required diameter should be placed on the pipe, and the cut location should be marked with chalk or a pencil. The prepared marked part can be safely sawed off.

For small diameter tubes that need to be cut close to the edge, the marking method using a container of water is suitable. The desired angle of inclination of the cut is marked on a deep container, then the end of the tube is placed in the water and tilted towards the marking. The line of contact with the liquid will become a cutting mark.

How to mark a 45mm cut on a profile pipe

Not everyone knows how to cut a profile pipe at 45 degrees with a grinder correctly and efficiently. Experts advise using an ordinary triangular ruler to mark a profile pipe with a square cross-section.

First, a straight strip should be drawn on one of the faces, located perpendicular to the side of the pipe. Then the workpiece must be rotated and an oblique mark applied to the adjacent face. It should go from the edge of the first strip at an angle of 45 degrees.

After this, the product is turned again and a perpendicular line is drawn. On the fourth side, all that remains is to connect the previously drawn stripes diagonally. Now you can start cutting.

Cutting a profile pipe with a grinder

There are two ways. The first one is more complex, it requires a little modification of the grinder.

We take an even strip of metal 2-3 mm thick, 3 centimeters wide, 10-15 centimeters long. We drill a hole in a strip of metal for a threaded hole on the grinder - the same one for attaching an additional handle when the grinder is used as an angle grinder

- that is, for grinding. Measure the hole in the metal strip in advance; it should be positioned so that the strip (sole) does not reach the disk by about 1-1.5 cm.

We fasten the sole to the grinder with a bolt and cut, now the cut will be smooth. True, this method is not suitable for cutting too deep; I did it with a 115 disc.

So it is not possible to cut large profile pipes, except to trim the ends.

The second method is even simpler - we wrap the profile pipe at the cutting site with a sheet of A4 paper, secure it evenly with tape, and cut the pipe along the edge of the paper. The cut will be perfectly smooth.

The design and principle of operation of a circular saw

The main parts of a hand-held circular saw include:

• Electric motor. With its help, rotational energy is created, which is needed for cutting the material.
• Frame. For its manufacture, plastic is used that is resistant to temperatures and shocks. It has holes for ventilation.
• Handle with start button. The latter is equipped with a lock designed to prevent accidental pressing.
• A platform with a guide (it is also called a sole or base plate). Thanks to this element, the tool is moved along the workpiece being cut.
• Spindle for fixing replaceable disks.
• Gearbox. It is designed to reduce the speed, load on the rotor and bearings of the electric motor.
• Main and additional handles.

The principle of operation of the equipment is to transmit torque from the motor shaft to the cutting disc. The latter rotates around its axis at high speed, this makes it easy to saw the prepared surface.

Circular saw device

Pipe cutter for steel pipes

When using steel pipes of different diameters, craftsmen often encounter difficulties during fitting and cutting. A specially made pipe cutter is best suited in this case. Before purchasing a tool, it is advisable to study the nuances of all varieties of such ready-made devices.

The first thing you need to pay attention to is the diameter of the pipe and the material for which the tool should be cut. There are three types of cutters:

There are three types of cutters:

• for thin-walled pipes;
• for ceramics;
• for very large volumes of work.

It is important to note that only electric cutters are designed for heavy loads. The operation of such tools is almost completely automated

They can cut pipes made of cast iron or steel with a diameter of up to three hundred millimeters.

Let's look at the main professional cutting mechanisms, which differ in their features and design.

• A roller pipe cutter is used for cutting steel products. The design of this tool includes groups of rollers. Some carry out the actual cutting of the material, while others are designed to guide the pipe during operation. A roller pipe cutter, which has one roller in its design, can cut products up to fifty millimeters in size.
• A pipe cutter can be used to cut plastic pipes with a diameter of up to one hundred millimeters. This cutter looks like a steel holder with discs that are adjustable to the desired diameter. The incision itself is made with the same discs.
• Chain pipe cutter. This tool is used very rarely, because it is intended exclusively for cutting fragile ceramics or concrete.

Pipe cutters are also divided into manual, electric, hydraulic and pneumatic.

• The manual pipe cutter is easy to use. To make a cut with this tool, you need to fix the device on the pipe in the right place and make several turns with the handle or the pipe cutter itself. One of the main advantages of manual cutting equipment is easy control of the entire process, since the cut is obtained as a result of the application of physical forces that you regulate. The disadvantages of such cutters are the physical fatigue of the master during a large volume of work and the small diameter of the pipes being cut.
• Using an electric cutter, you can complete large jobs in a fairly short time. The advantage of such a cutter is the very high quality of the materials used in its production. The strength of this tool will allow you to perform numerous cutting operations repeatedly without worrying about the wear resistance of the tool. One of the advantages of such a device is the ease of cutting performed by an electric motor. There is practically only one downside to such a tool - the high cost of the cutter. Therefore, such a purchase for one-time work is impractical.

A milling machine is also used for cutting pipes. Waterjet cutting is one of the fastest and most effective methods. Metal processing is carried out by a jet of liquid that comes out of a special nozzle at high speed and pressure.

What can you do with electric circular saws?

Electric circular saws allow you to process wood and wood-based products in different ways, which depend on the type of tool chosen.

Types of work with a hand-held circular saw

The following types of work can be performed with a hand-held circular saw:

trim multiple workpieces laid in one plane;

trim wide boards using a rip fence that cannot be cut on a pendulum saw;

trim boards when laying floors;

trim the workpiece at an angle, without a guide and with its use;

perform longitudinal sawing of the workpiece at an angle;

align the unedged board along a pre-drawn line;

choose a quarter in a board or timber;

cut sheet materials using a guide rail;

By changing the equipment, you can use a circular saw to cut metal profiled sheets;

cut plexiglass and various types of plastic;

Place the hand saw in the table and use it as a stationary circular saw.

Working on a circular saw

Working with a circular saw (stationary) is slightly different from working with a hand-held unit. Using a circular saw you can do the following:

cut and trim wide workpieces, both with a straight cut and at an angle;

perform longitudinal and transverse sawing of wooden panels;

cutting wood-based sheet materials;

open the board at an angle;

sawing an unedged board.

Types of work with a miter saw

You can do the following with a miter saw:

trim wood blanks at any angle relative to the edge;

trim the workpiece at an angle to its face;

a miter saw with a broach allows you to cut wider workpieces;

Conclusions and useful video on the topic

Video review of a manual pipe cutter for plastic pipes:

Video instructions for using a pipe cutter. The video shows how to properly process medium-diameter steel products with a pipe cutter:

Once you familiarize yourself with the types and types of pipe cutting equipment, choosing the right tool will not be difficult at all. If doubts remain, consultants from construction and hardware stores will be happy to help and tell you which device is best to purchase.

Do you have any questions about the topic of the article, have you found any shortcomings in the material, or can you provide valuable information? Please leave your comments in the block below.

JBTS-10 Table Saw Manufacturer Details

The supplier of the JBTS-10 table saw is JPW Tools AG Switzerland, which is a subsidiary of Walter Meier (Tool) AG. Website address: www.jettools.com

In Russia, Jet products are exclusively represented by ITA-SPb, St. Petersburg, founded in 2004, as a subsidiary endowed with all rights for sales, promotion and technical service.

Machines manufactured by JPW Tools AG, Switzerland, China

• JBTS-10
  – circular table saw
• JKM-300
  – combined woodworking machine
• JPS-10ts
  – stationary circular saw
• JPT-10B
  — tabletop jointing-thicknessing machine
• JPT-310
  – stationary planer-thicknesser machine
• JRT-2
  – milling table
• JTS-315sp
  – construction circular saw
• JWP-12
  - table thickness planer
• PKM-300
  – combined woodworking machine
• BD-3
  - table lathe Ø 100
• BD-7
  – table-top screw-cutting lathe Ø 180
• BD-8
  – table-top screw-cutting lathe Ø 210
• BD-920w
  – table lathe Ø 220

Advantages and disadvantages of hot welding

Currently, home craftsmen most often have devices of various designs and purposes in their arsenal. You can connect to the existing heating using them. Hot pipe welding has a number of significant advantages:

1. High reliability of connections.
2. Possibility to make a tap of any configuration.
3. No need for additional fittings and accessories.
4. Inconspicuous welds, due to which the interior of the room is not disturbed.
5. Possibility of connecting large diameter pipes.

Sometimes only with the help of this method it is possible to “crash” into the heating pipe. This applies to hard-to-reach places where devices and tools cannot be used. Welding does not require perfectly even processing of the ends; small errors can be corrected with the help of molten metal. Welded pipes do not change their qualities and are able to withstand strong mechanical loads.

True, there is also a big “fly in the ointment” - a highly qualified welder is required. An amateur level will clearly not be enough to obtain a high-quality seam. In addition, high temperatures can damage the “winding” on old threaded connections and cause unplanned repairs in the room. Welding of pipes is possible only after partial or complete draining of water from the system, and the insertion site itself must first be dried.

How to use a miter box correctly

Using a miter box greatly simplifies the work of the master. Next, let's look at what a miter box is used for using specific examples. Before work, carefully read the instructions from the manufacturer.

How to cut material

To properly cut an element, you need to carefully prepare the material by taking a miter box with a saw. The presence of grooves allows you to make accurate and even workpieces since the saw will take the set position. The first step is to secure the tool with screws or a clamp on a flat surface. Next, use a pencil or laser to make a mini-drawing. The workpiece is placed in the tray. In this case, the marking should be opposite the corresponding slot. Then a hacksaw is inserted and the cut is made.

How to cut a pipe into a pipe without welding

Insertion using a welding machine
During the assembly or restoration of a pipeline, it is not always permissible to use welding equipment to form a reliable nodal connection. The solution in such a situation is to insert the component elements using various special devices. Such parts must have sufficient strength, durability and tightness in order to be used for a pressure or non-pressure system.

The fittings used allow you to assemble both detachable and permanent connections. The first are convenient in that the pipeline in a separate section can, if necessary, be disassembled and reassembled without violating the integrity of the constituent components. The latter are not suitable for re-installation, but they do not require the use of additional sealing materials and form a more durable connection.

Detachable connection type

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The choice of one fitting or another is determined by the nature of the pipes. Thus, there are products for working with rigid metal (steel, copper, cast iron) or flexible polymer (polypropylene, polyethylene, metal-plastic) channels. Thus, manufacturers offer universal type options, which is especially important when assembling dissimilar highways.

For narrow-directional fittings there is one more difference. To connect polymer channels, the contact area of ​​the elements is larger than that of metal ones. This difference is especially relevant for a rigid pipeline, which has to be worked with in spatially limited conditions.

How to cut correctly?

Let's consider step by step how to correctly and evenly cut an aluminum profile.

• First you need to apply markings to the metal workpiece. To do this, you can use a ruler or tape measure. Markers should be placed with a marker.
• A perpendicular mark must be applied to the product. It is along this that the side planes will be trimmed.
• Then folds are made along the marking line. Lastly, cut along the fold.
• If we are talking about cutting a rack profile, then the master needs to remember that it has auxiliary stiffeners. Sometimes they come out slightly uneven. You can trim them with scissors. Slats with a length of up to 1 m can be cut by weight, but longer parts will require fixation in supports or a vice.
• To prepare lintels or small structures, the profile should be cut at an angle of 45 degrees. First you need to saw off the slats to the required length, after which you should mark the angle of the cut and complete the procedure by cutting it.

Profile cutting must be carried out strictly according to technology

When working with any tool, it is very important not to forget about compliance with safety regulations. It is better to stock up on all the necessary personal protective equipment, and carry out the work itself carefully, without rushing

You can see how to properly cut an aluminum profile in the video below.

Precision cutting devices

Band saws are characterized by high stability of the plane of movement of the blade and cutting accuracy. They are also widely used in procurement areas of small-scale and medium-scale production. They are characterized by versatility, reliability and high performance.

For private use, the MASS company from Italy offers a compact band sawing unit. It is equipped with a manual clamping device and can smoothly cut pipes with a diameter of up to 65 mm, as well as rolled sections of any profile of the same thickness.

The rotary device allows you to set an arbitrary cutting direction from 0 to 45°. The frequency of movement of the cutting blade is up to 45 strokes per minute. An economical 370 Watt motor allows you to use a regular home single-phase power supply with a voltage of 220 V.

How to properly cut a ceiling plinth at an angle of 45

Corner elements for ceiling plinths can be easily trimmed using a miter box or by hand. In the first case, you will need a miter box and a hacksaw, and in the second, a pencil and a hacksaw/cardboard knife. The hacksaw blade should be well sharpened so that you don’t have to think about how to cover up chips and roughness on the cut.

Cutting a corner using a miter box

We take a polyurethane ceiling plinth. designed for the left or right side of a corner. We lean it against the future installation location so that the end of the segment opposite from the corner is against the edge of the already glued molding. In the place where the bottom edge of the ceiling plinth touches the top of the wall corner, make a dot with a pencil or stick a piece of insulating tape. We repeat these steps with the second segment.

How to cut an external corner of a ceiling plinth:

• We place the left blank in the miter box from left to right, pressing it to the edge closest to us. The corner vertex mark should coincide with the leftmost slot in the same edge
• We place the right blank from right to left, pressing it to the near edge. The mark for the top of the corner is to the far right slot.

How to saw down a ceiling plinth at an internal corner? Everything is very simple, the actions will be exactly the same, only the location of the corner vertex mark changes. Here it’s the other way around: for the left segment – ​​the far right slot, and for the right – the far left. The finished ceiling fillets must be aligned, and then the joints should be held up to the light - there should be no gaps. If they are very small, then editing is not necessary; you can get by with sealing with putty material after installation.

How to make a corner of a ceiling plinth: positioning the workpiece in a miter box

Important: sometimes the angles deviate too much from the standard 45 degrees, and a simple miter box for the ceiling plinth becomes useless - you can cut off the excess. The solution would be to purchase a rotary tool, but it is not cheap and this “one-time” purchase will be irrational. In this case, you can use the intersecting point method.

In this case, you can use the intersecting point method.

How to cut the corners of a ceiling plinth without a miter box

If you are wondering how to properly cut down a ceiling plinth without a miter box, then the following information will be useful to you. We take the right section of the ceiling plinth made of foam plastic, apply it to the installation site and draw a line on the ceiling along its upper edge. It should extend beyond the vertices of the corners by about 5 cm. We do the same with the left segment and put points at the intersections of the lines. We put the ceiling plinths in place one by one and transfer the resulting marks to them.

We've dealt with the upper part of the ceiling moldings, now let's move on to the lower part. Everything is simple here, the marks we need are the vertices of the corners. We mark their location with dots on the lower edges of the left and right ceiling plinth. Next, you need to connect the dots on the moldings - this will be the cutting line. This method will help you cope with even the crooked corners. Adjustment will most likely not be needed, and if it is, it will be minimal.

How to cut a ceiling plinth without a special tool: the photo shows marks for the intersecting point method

Important: the work described here requires marking the surfaces. Therefore, first you need to start cutting and fitting the ceiling plinth, and only then think about how to glue the wallpaper. Or, if you want to mount the plinth on top of the wallpaper, we do the marking and trimming before finishing, and gluing after it

Or, if you want to mount the plinth on top of the wallpaper, we do the marking and trimming before the final finishing, and the gluing after it.

Insertion into a sewer pipe 110 mm. with your own hands

Although cast iron pipes are practically never used anywhere, in many houses they have been standing in risers without replacement for many decades. To work with modern pipelines, adapters made of cast iron are put on or a plunge is made. Working with plastic is much easier; all connections can be easily made with your own hands without a special tool; the most difficult thing is not to make mistakes in the measurements.

Rice. 5 Insertion into a plastic sewer riser

Inserting a plastic pipe into a vertical riser using the correct method

Before making an insert into a PVC pipe, if the procedure is carried out during the day in an apartment building, it is advisable to ask the residents above not to use the sewer system at this time. You can rely on luck and not waste time on warnings - the whole process will take no more than 10 minutes, and take a bucket as a safety net. The procedure for installing a tee and compensator consists of the following steps:

• When the riser is released from its fastening in the walls, it will move to the side.
• A part of the riser is cut out with a grinder or a hacksaw to the size of the compensator, the edges outside and inside are processed with a file, sandpaper or an angle grinder disc. To avoid trouble, the upper end is placed in a bucket.
• The upper and lower sockets of the riser are coated with lubricant, and a transition coupling is placed on the lower part to connect the tee. If the tee is changed, the old mounting socket is used for it, and the lower adapter coupling is not needed.
• Place the compensator on the upper end and move it up until it stops.
• The tee is installed in the adapter coupling or the old socket; before this, its surface is lubricated with silicone.
• Lower the compensator down until it is firmly fixed in the upper socket of the tee.
• The riser is secured by screwing it through clamps to the walls, and the pipeline is connected to the line.

Narrowing the gap

It's not often that a DIYer has to cut very narrow strips of wood, as shown, for example, in the photo above. But if such a need arises, then care should be taken to ensure that thin cuttings do not fall into the gap between the work table and the saw blade, get stuck there, and then fly out at great speed, crossing the entire workshop.

The main thing in work is safety. For this, you can sacrifice a piece of plywood or hard fiber board. Saw the selected piece lengthwise, but not the entire length, place it on the table and attach it to the rear side edge of the table with clamps or using strips of adhesive tape on both sides.

Another similar option

You can do it differently. First, the same work is done as in the previous version - a strip is drawn, a corner is laid and pressed. But here the groove is made somewhat deeper - 4-5 mm. After the corner is removed, the remaining metal can simply be broken off, and the edge can be processed using an angle grinder with a grinding disc. However, there may be small pits on the edge, which makes the second option more acceptable.

The groove along the guide angle is made a little deeper than in the previous version

Cut line

Anyone who brings the part to the saw blade with the casing lowered cannot see whether the cut line coincides with the marking line. In this case, you should not give in to the desire to lift the guard and work with an open saw, without protection.

It is better to put a mark on the workbench that will clearly indicate the cutting line and help process the parts in accordance with the markings. To do this, stick a self-adhesive label on the table, use the miter gauge to slightly move the bar towards the rotating disk, and immediately pull the miter gauge back along with the bar. After this, it will no longer be difficult to transfer the cutting line from the plank to the label.

It is recommended that the mark be made in the form of a clear stroke exactly the same width as the gap in the table. This makes it possible to control the position of the part during the sawing process, and will also make it easier to install the rip fence at the required distance from the cutting disc with millimeter precision.

Minor amendments

You should periodically check how accurately the stop is installed and, if necessary, adjust its position by removing the circular saw from the table at this time and working with it manually. It is also useful to do this check every time after replacing a saw blade, since with a new blade the cutting line may shift slightly to the right or left.

Using a test cut and a miter gauge, determine the axis line of the saw blade and mark it on the label.

Method 3: Trim by eye in one pass

The fastest way is to trim by eye in one pass. At the same time, with experience you can gain sufficient skills so that the quality of the end is quite suitable for further welding work.

The cutting disc of the grinder is applied to the pipe from above as perpendicularly as possible. With a developed eye, this will work out the first time. After cutting the upper side of the profile, you need to move the disk to the near side. The tool must also run perpendicular to the pipe. Having two intersecting cuts, all that remains is to deepen the disk, and it will cut the profile to the end without distortion on the remaining walls.