Do-it-yourself metal cutting saw. How to make a cutting disc machine for metal? Manufacturing of a disc cutting machine

Hello. Today I want to talk about how I made a cutting machine out of an angle grinder I didn’t need. I often have to cut pipes. Especially profile ones. Anyone who has done this knows that cutting a profile pipe straight with an angle grinder is quite difficult. This takes a lot of time - you have to use a square to draw each side at a right angle, then carefully cut one edge at a time. And yet, it happens that one side turns out to be half a millimeter shorter, and then, during welding, the thin metal of the wall in this place begins to burn due to loose fit. Ideally, you can cut straight in just one cut. And for this you need a cutting machine.

I had an angle grinder "DWT ws-180s" that I didn't need. They gave it to me free of charge due to a malfunction - the rotor impeller came off and the angle grinder jammed. The owner wanted to throw it away and offered to give it to me for spare parts for free. I repaired the rotor, replaced the brushes and bearings.

But it turned out that I didn’t need such an angle grinder. It is very heavy and massive for the 180th lap. There is enough power there for the 230th (2200 W), but for some reason the manufacturer equipped it with protection specifically for the 180th circle. That's why it hung in my workshop for several years unclaimed - I have a lighter "180". I was going to remake the protection for the 230th circle (then it will be useful for working on concrete, for example), but I never got around to it!)))). After all, I also have a 230...

And so the idea came to me to buy a bed for it and make a stationary cutting machine. But having examined the purchased options, I discovered that they, for the most part, do not have sufficient rigidity, and therefore accuracy! Therefore, I came to the conclusion that I need to do it myself.

What I needed:
1. The actual angle grinder.
2. Steel angle 50 by 50 and 40 by 40.
3. Trimming water pipe DU32-3.5
4. Cutting a water pipe DU-25
5. Bearing 6202 (2 pcs)
6. Support bearing.
7. M14 hairpin.
8. Profile pipes 15 by 15, 20 by 20, 25 by 25
9. Bolts and nuts M6, M8, M14.
10. Tin scraps.

So, to begin with, I decided to assemble the angle grinder mount. In purchased versions designed for various grinders, fastening is carried out by three long bolts with locknuts, which affects rigidity. In addition, having secured the angle grinder in three points, it has to be positioned vertically, which slightly “steals” the cutting depth - as a rule, the gearbox housing is slightly elongated in front. Therefore, I decided to fasten it horizontally, at two points, with a tight fit of the frame to the gearbox.. The disadvantage of this fastening is that it only fits one model of angle grinder. But I decided to ignore this, figuring that if I had to replace the angle grinder, I would simply weld a new mount.))))
I cut two pieces of 50 angle:

I drilled holes in them with a diameter of 14 mm:

And screwed it to the gearbox using the handle attachment points:

At the same time, I did not have M14 bolts, and I temporarily replaced them with trimmed studs with nuts. In order to tighten and hold them, I had to cut slots for a screwdriver:

After that, I welded the corners together directly on the grinder, then removed them and welded them tightly:

Next I started making the carriage. For this I needed a segment thick wall pipe 32s. Since it was necessary to cut evenly, but I didn’t have it on hand yet cutting machine, I used wide masking tape as a marking:

After that, I cut out a piece of DU-25 pipe, 20 mm shorter than 32:

I put one inside the other:

I scored on both sides on the 202nd bearing:

And tightened it with an M14 stud, using washers and nuts:

Then I cut out a piece of the corner and grabbed it to the pipe. At the same time, he burned it with an electrode outer pipe so as to weld it from the inside:

Now we need to make stands for attaching the carriage. I made them from the same corner 50. To make them the same, I tightened them with a clamp, and in this position I cut and drilled holes:

Next, I assembled and welded all fastening structure carriages:

I made the rods on which the angle grinder will be attached to the carriage from a thick-walled profile pipe 20 by 20. I calculated their optimal length experimentally, laying out a diagram of the future machine from pipes and bars:

All that remains is to cut and weld everything together:

At this stage I “tried on” the grinder:

Now it's the table's turn. I made it from a sheet of steel, 4 mm thick, measuring 60 by 60 cm:

I attached the entire structure to this sheet:

I made two square frames from a 15 by 15 profile pipe, measuring 50 by 50 cm. At the same time, in the pipe, at the bends, I cut only three walls, leaving the fourth.

After that, I welded vertical posts from the same pipe in the corners, and attached my structure to the resulting parallelepiped.

At this stage, it became necessary to set a right angle between the cutting wheel and the table. As I already said, I excluded all adjustments for the sake of rigidity (read: accuracy) of the design. My plans were to simply bend the rods and then strengthen them in the desired position by welding corners to them as reinforcement. But, when I tried to bend them first with two montages... (Oooh! What an optimist I am!)))). Then with a crowbar! (The result is the same)..... I realized that there is no need to strengthen the structure!! Two thick-walled profile pipes of short length, moreover, welded at the ends to the corners with seams 5 cm long on each side, provide incredible rigidity! ...

I was able to bend it only by inserting a two-meter (!) pipe between them, with a cross-section of 60 by 20. (Fortunately, there is just 60 mm between the rods.

So, the vertical is set! Now I cut through the table:

After that, I widened and lengthened the slot with a small grinder. (In case of installing, for example, a circle on wood.)

By the way...Initially I had the idea to make a “2 in 1”. That is, provide for the possibility of turning the table with the grinder down in order to obtain a circular saw! And I even started to implement it. For example, everyone's hats mounting bolts With reverse side I boiled, melted and cleaned to get a smooth circular table:

For the same reason, I made symmetrical holes for the fastening bolts with which the table is attached to the “parallelepiped”... But the euphoria from the fact that “I came up with a cool idea” passed, and I realized that I was just “fallen” and was not chasing practicality , and for “it turned out great.”))))))

But in reality I WILL NOT USE THIS!!! After all, I have a circular. And, in any case, it is better than one made from an angle grinder! In addition, when working with wood with a circular saw, it is good to place this machine next to a wood circle for trimming. Instead of turning the table over for each board...
In general, I threw away this stupid idea....
..
Next I started building a support for the workpiece. I applied the square to the circle, drew a line at a right angle, and secured a 40 by 40 stop angle along it.

After that, I unscrewed the corner and, using its holes, this time applying a 45-degree square, drilled a hole in the table.

I forgot to take a photo, but I think it’s clear here... Now, to cut it at 45, you need to remove one bolt, turn the corner and secure it in another hole.

Next stage. I started assembling the tool vise. After all, you can accurately cut only a well-fixed workpiece. I cut out a piece of pipe 20 by 20.

I inserted a piece of M14 stud inside and tightened it with nuts. At the same time, I took one long connecting nut:

I welded it.

And I processed it with a grinder, giving it the outer dimensions of the pipe:

Then I cooked some more, where there was not enough and processed it further. (did not take photos).
Then I cut out a piece of the 25 pipe (the 20 fits into it easily and quite tightly) and welded a piece of strip across it so that I could drill holes and fix it to the table. This will be the guide:

I made a hole at the edge of the stud and made a handwheel there.

Next, I attached a corner with a hole to the edge of the table and assembled the vice. I screwed the stud into the pipe with a welded nut, put a guide on it, and passed it all through the stop angle, placing a support bearing, which is fixed with a cottered nut: In short, you’ll understand from the photo:

I made the handwheel handle from a furniture bolt and put a metal tube on it.

I made a wide stop at the end. And this is how the tool vise turned out:

When the handwheel rotates, the pipe with the welded nut comes out of the guide and tightly presses the workpiece against the stop. The only inconvenience is that you need to rotate to the left.))). But more reliable than an eccentric clamp.

Next, I started making the protective casing. As I already said, the casing on the angle grinder was for the 180th circle, and I decided to use the 230th. (There is enough power. The speed is also suitable.). In addition, since I need accuracy, I will cut with thick circles (2.6 or 3 mm). Because the thinner ones wobble a little when pressed. And therefore the number of sparks will be incredible!!! Therefore, I decided to make the most closed casing and attach it directly to the frame.

First I made a template out of cardboard.

A pendulum saw for metal, in fact, is a cutting machine whose tasks include: cutting pipes, profiles, metal corners, at various angles. The machine is a rigidly fixed frame, with a pendulum mechanism, which allows cutting to exactly the size and intended angle. Mainly on the market Makita tools are presented, which guarantees high quality and efficiency, but there are also products from lesser-known manufacturers.

Device

Pendulum feed mechanism cutting tool involves a top-down working movement, through mechanical or manual control. One of the advantages the pendulum machine is also a change in the cutting angle, up to 45 degrees from the normal. The working part of the machine is a circular saw; depending on the type, the machine can be single- or double-headed, depending on the number of cutting saws.

The circular saw located on a pendulum mechanism can be driven either manually by an employee or automatically.

The machine is often installed graduated dials, for additional control of cutting accuracy, for example, a Makita LC1230 machine, in this case the cutting angle is changed by turning the handle.

Advantages and disadvantages

At fully equipped The pendulum saw is absolutely safe and comfortable to use. The dust collector collects abrasive elements and metal particles. The clamp for securing the workpiece holds the part to be sawn and prevents the blade from skewing.

Advantages of pendulum cutting machines:

Flaws: the only drawback This type of machines is due to their high cost in professional performance. Yes, a pendulum saw Makita costs from 10 thousand rubles. But at the same time, Makita tools are most valued by our industrialists. Makita produces power tools and components, the same saw blades, High Quality And different prices, from household models to highly professional equipment.

Assembly saws

A special subtype of pendulum cutting machines is characterized by a simplified design and increased mobility. Assembly machines do not have a mechanism for turning the saw itself and cut the workpiece only along the normal.

The device in this case simplified as much as possible, saw, pendulum, bed. Discs for cutting metal are usually abrasive; carbide is less commonly used.

The drive on a disk, in professional cutting machines, is usually belt driven, this allows you to reduce the load on the engine and avoid sudden jerks.

Due to the lack of hard fastening the pendulum and the workpiece, when working with cutting-off assembly machines, it is necessary to take into account the following nuances:

Use a clamp to secure the workpiece while cutting.
At the moment of starting, the torque of the disk gives a strong push to the saw, take this into account.
When cutting assembly machine a burr forms on the workpiece, which must subsequently be removed.

Making a pendulum machine with your own hands

To do this, it is enough to make a frame from a channel and an angle; you can use a regular circular saw as a working tool, securing it to the frame.

Open the bed, it’s quite simple to do, install two channels - paws, connecting them in pairs. Weld the base of the pendulum to them. Often, a solid metal plate 12 mm thick is used as the base; in this case, the hole for the saw blade is simply cut or drilled. Need a drilling machine.

After this, it is necessary to make cages for bearings for the pendulum; for this, it is best to contact a turning shop. After turning, welding will be required.

Also, when creating parts for the rotary machine and pendulum, you will need milling machine and drilling.

Don’t forget about the casings; for their manufacture it is best to use sheet metal with a thickness of 0.8–1 mm. Cutting is done according to ready-made patterns, after which it is tacked by spot welding.

During processing and workpieces the following were used:

Gas cutter, cutting base metal, pendulum and frame blanks.
Screw-cutting lathe for turning fingers and clips.
Milling machine for processing the edges of workpieces and milling part of the pendulum parts.
Drilling machine.
Welding transformer.

In general, it turns out that the cost of independently manufacturing a frame for a pendulum saw is high; the efforts of an entire mechanical repair shop will be required. In some cases it's worth it, sometimes not. The price is too high.

Sometimes it's easier and more efficient to buy a ready-made tool. This will save time and money.

Cutting tool

The saw uses as a cutting tool circular saws, abrasive wheels various diameters and seats. In this case it is necessary See the saw's operating manual; the recommended blade parameters are indicated there. Thus, the Makita LC1230 saw uses a disk with a diameter of 12, with an inch fit, 25.4 mm and a number of teeth of 60 for cutting. It could be saw blade Makita, 305x25.4x60, for example, Makita B-29393. Discs from other manufacturers that are suitable for technical specifications. Cutting is usually done with carbide-tipped discs at the ends of the disc teeth.

Exploitation

Before using the machine must be installed on a raised table or workbench, this is necessary for the comfort of its use. It is also necessary to make room for cutting, carrying material and storing workpieces.

The Makita LC1230 saw is compact; installation requires small area, but we must not forget about the movement of material and workpieces, as a result work zone cutting saw is a rectangle of 2x4 meters. With a material length of 2–3 meters.

Cutting with a pendulum saw is not a difficult task, but nevertheless requires attentiveness and accuracy. Yes, special danger represent sparks and hot metal particles flying from under the saw. Partially, the collar installed on the saw body saves you from them. But nevertheless, we should not forget about personal protective equipment.

A metal cutting machine is useful for any workshop. It is required when construction work and in the metal shop. The market offers a wide variety of machines, but not all of them are affordable. For home workshops, the way out of this situation will be a homemade metal cutting machine. To make it, you will need certain skills in working with welding machine and metalworking tools. It will require a metal cutting unit from a master and the skills of an electrician.

Required tools and materials

In order for the future machine to reliably perform its functions, you will need a simple set of tools:

drill;
Bulgarian;
taps;
welding apparatus;
spanners;
dies.

An additional engine will be required. The optimal option is a 2 kW motor. It is recommended to purchase single-phase or three-phase motors for such machines.

The necessary elements of the future unit are:

sheet steel 3 mm thick;
bearings 204;
2 pulleys;
metal corner;

Any homemade mechanism need to be customized according to your requests and drawings. The master pays special attention to safety precautions. When working with cutting units, a particularly vulnerable part of the body is the hands, which can easily be damaged by neglecting simple rules work safety.

Disc cutting machines

In practice, craftsmen make machines of three types: belt, pendulum, disk. The first type is the most difficult to make in a home workshop. The best option It is considered a disk type metal cutting machine.

These units include:

cutting disc;
pendulum;
Desktop;
Electrical engine;
drive mechanism.

For a standard workshop, the sufficient power of the engine used is 1.5 kW. The power of the electric motor depends on the type of metal used. If metal with thin walls is used during operation, then a power of 1.5 kW will be sufficient for such an engine. To carry out frequent work cutting pipes from profiles, you will need a 3 kW unit.

An important indicator of the engine is the number of revolutions it makes in the process of cutting a metal part. The recommended speed is at least 3000 per minute. At low motor speeds, the cutting disc is not able to operate optimally.

Particular attention must be paid to the diameter of the circle used. Experts advise choosing circles with a diameter of 300-350 mm with an electric motor power of 2 kW. With the specified parameters, the recommended engine speed is 3000-4400 rpm. As the indicator increases, the circle is destroyed, and at low speeds it quickly overheats and wears out.

What to pay attention to

The choice of drive mechanism matters. A belt drive does this job well. To make it you will need 2 pulleys of the same size. The first pulley is fixed on the drive shaft cutting wheel, the second is on the electric motor shaft. The shaft is mounted on two bearings.

To prevent the belt from slipping and maintain the necessary tension, it is necessary to secure the electric motor in the rear part of the pendulum. Fastening is done with 4 bolts.

The pendulum has its own separate requirements. It should be:

balanced;
well cooked;
move perpendicular to the desktop.

The pendulum is mounted on two vertical posts. Each post has slots into which a bushing with a diameter of 11 mm is inserted. The stands are made of a metal square measuring 40*40 mm. Optimal height- 90 mm.

Desktop Design Requirements

The cutting unit must have a work table optimal sizes. Required parameters are: 701*1000*900 mm. The table is welded from a corner measuring 25*25 mm, after which it is covered with a steel sheet having a thickness of 3 mm. Slots are made in advance in the sheet at the point where the circle rotates.

It is fixed at the workplace with a rotary clamp and a rotary stop. Such a homemade mechanism allows you to cut products at an angle and perpendicularly.

Any cutting machine for metal requires compliance with a number of conditions during its installation:

adjustment of the rotation angle is required (its location must be perpendicular to the surface of the desktop);
the master needs to protect his hands from damage by installing covers around the disk and rotating elements;
it is important to calculate the rotational speed of the circle in advance;
equip the handle with an emergency stop button, which, when pressed by hand, instantly stops the operation of the entire mechanism;
Place the wheel feed force in the cutting zone.

Procedure for making your own machine

Any machine with which it is possible to cut metal is assembled according to the following scheme:

Preparation protective covers, intended for installation on the drive belt;
installing a motor using a drive belt as a connecting part between the motor and the shaft;
manufacturing a shaft for attaching a pulley and a cutting disc to it (the unit is assembled and mounted on a pendulum, which is the upper part of the structure);
manufacturing a shaft for mounting a pendulum on it;
manufacturing a machine frame on which the metal for processing and a spark catcher are supposed to be mounted;
the pendulum is fixed on the frame;
electrical wiring is installed;
The device is launched in test mode to check the build quality.

Features of the assembly of the device based on the grinder

In a workshop, it is possible to assemble a homemade metal cutting machine based on a grinder. Tools and materials needed:

start relay;
some profile pipes with square or rectangular cross-section;
control pedal;
metal sheet for desktop;
spring;
metal corner;
two bearings.

Machine start relay

Unlike a disk-type machine, the operation of such a device has a more accurate result. The assembly process is very similar to the disk assembly, but has a number of features:

frame parts are manufactured;
a hinge joint is installed on the pendulum arm;
a bracket is made in the shape of the letter “P”, in which holes are made for mounting the grinder gearbox;
strips with clamps are made, due to which the grinder is secured to the pendulum;
welding the clamp, bracket and cutting tool (an alternative would be to use threaded connection for installation of the specified elements);
pressing into bearing supports;
pressing bearings onto the shaft from both sides;
welding the pendulum on the edge of the working platform with a mandatory distance of 0.5 cm from the edge;
installation of an angle grinder and a protective casing;
installation of the return spring.

After installing all structural elements, the machine is started in trial mode. Additionally, you will need to fit the groove under the tool and install supports with which the metal being processed is secured.

On final stage The work machine is covered with enamel. It will protect the unit from the adverse effects of rust.

When working with an angle grinder, the master must protect his hands and eyes from the effects of sparks. Any work is carried out wearing protective gloves and a mask.

Do-it-yourself pendulum saw for metal– very simple and excellent

Pendulum saw (photo)

Working with metal is one of the more labor-intensive, the main reason for this is the highest strength of the material. Everything about repairing a chainsaw with your own hands, and also repairing a chainsaw with your own saw calm. But because of this distinctive characteristic it is virtually impossible to do without metal products during construction - metal elements are indispensable for virtually every load-bearing structure, fastening systems or stiffening frame. Therefore, in the arsenal of construction tools it is necessary to have devices that allow you to easily cut metal, for example, pendulum saw for metal – with your own hands it may not be very easy to make, but purchasing a branded saw will be very expensive - the cost of such a saw will be rather high. Below are other entries on the topic “How to make a saw with your own hands. Several tables with your own. Therefore, it is better to activate your own inner engineering genius and still try to make the instrument yourself. Do-it-yourself pendulum saw for wood. DIY metal cutting machine. Moreover, as practice indicates, homemade tools make it possible to avoid the shortcomings that are typical of factory models. In general, first things first.

Operating principle of a pendulum saw

Pendulum saw, also known as a miter saw, is a circular saw mounted on a frame and driven by electric current. Factory products have a special turning circle in their design, which allows you to use the saw as a miter box. Bread has long been the prerogative of large farms, and the queen of the fields of small farms and household plots is potatoes; instructions for making your own potato hiller for a mini tractor. But this function is not always needed, so in a homemade pendulum saw it is possible to do without a turning circle.

Metal cutting machine. With your own hands.(Homemade cutting machine for metal.)

Homemade cutting machine metal.Motor 2.2 kW, 2850 rpm. Motor winding converted from Y380V to.

Cutting machine with your own hands. pendulum saw for metal.

A simple homemade cutting machine. ask all questions in the comments.

In general, such a saw is called a pendulum saw because its cutting mechanism rises and falls along the trajectory of the pendulum. Pendulum saw for metal: choosing and making your own. That is, during the cutting process, the master lowers the cutting wheel onto the workpiece, and after cutting, raises it back.

With this saw you can cut a variety of materials:

How to make a pendulum saw their with your hands?

First of all, you need to purchase an engine. This can be any 1-phase electric motor, for example, from an electric grinder. You can also take a 3-phase one, but its power should be higher than that of a 1-phase one. The main malfunctions of the Shtil 180 chainsaw and Do-it-yourself repairs, the saw was bad. The rotation of the engine can be transmitted to the spindle of the cutting body by a belt drive, for example, an automobile V-belt.

To attach the saw, you need to weld a metal frame square section, on one side the housing for the spindle is welded to the frame, on the other - a platform for mounting the motor. A groove should be provided in the frame through which an axis for swinging the saw will pass; it can be made from a piece of pipe. When welding the frame, you need to clearly ensure that the axes of the swing, motor and spindle are parallel to each other.

Protective covers for cutting element and the drive belt can be welded from sheet metal. DIY pendulum saw » Useful. The covers must be secured to the frame with screws. The belt guard must have a drive handle.

If everything is calculated correctly, the engine will outweigh the cutter and, when released, will be located between the supports of the spinal frame.

In principle, there is nothing difficult in making a pendulum saw with your own hands, you just need to do it correct drawing, carefully complete all work and securely fasten all parts together.

Nowadays, there are a huge variety of different tools for cutting metal. Many of them are manual and have a large number of inconveniences. The rest of the tools are considered automated and have large dimensions or a large price category.

To combine business with pleasure, as well as convenience and price, handicraftsmen created a disc cutting machine. Below we will look at everything related to this equipment.

The scope of application of this machine equipment extends to industrial area applications and on household use. Used for cutting various types metal (steel, cast iron, copper, aluminum, etc.).

Since in everyday life there are a huge number of different metal objects that require minor repairs, this machine becomes extremely necessary. After all, lowering the cutter stand with the cutting disk once will be easier and faster than manually sawing with a hacksaw.

Dimensions homemade equipment allow you to place it under a canopy, in summer time, and in winter safely located in warm garage, or in the workshop.

Tip: It is extremely important to choose a smooth and solid place to install the bed ( concrete slab, thick corners, or concrete support legs bed). This is done in order to reduce the possibility of vibration to a minimum during operation.

Mainly used in production automated systems, which are controlled by the operator via CNC. Target - mass production metal products, in the form of cutting pipes of specified sizes and various sections, flat rolled metal and much more.

Below we will look at the criteria by which this machine equipment is distinguished.

Classification of cutting machines

All cutting machines are distinguished according to a huge number of criteria. We'll look at the most important ones. So, the main technological criteria:

By type of toolkit

The separation occurs directly on the tool that cuts the metal products. In turn, they are divided into the following subspecies:

Band saws

IN in this case used band-saw with teeth. The belt is made from high-quality high-speed steel. Due to the fact that the cutting tape is thin, there is a saving in material consumption due to the thin cut. Apply band machines in production.

Hacksaws

They are used in small industries, as well as in everyday life. Hacksaw tools can be hand-held (the well-known hacksaw for metal) or an electromechanical machine. In this case, hacksaw blade made from various metals(high speed steel, carbon steel, alloy steel, bimetallic steel). This type is quite easy to operate and is considered a convenient tool.

Disc machines

Belongs to the category indispensable tools. Used throughout the metalworking industry. Using such equipment, high-quality cutting of metal can be carried out even by an unqualified person. In addition to industry, this machine equipment is widely used in everyday life.

By number of cutting edges

Single head

The design has one cutting disc. This type of machine is low-productive of its kind and is capable of performing only one operation.

Double head

Their design uses two “heads” for attaching disks. In this case, one “head” is firmly fixed and motionless. The second has the ability to move in independence in the first. This equipment is considered a high-performance tool.

By type of saw blade feed

Front saw blade feed

The center of the disk moves in a horizontal plane.

Bottom feed

The center of the disk moves from bottom to top along a vertical plane.

Pendulum feed

The center of the cutting disc moves like an arc, from top to bottom.

Vertical feed

The center of the disk moves along a horizontal plane from top to bottom.

By main type

Cut-off saws

This tool is used to cut dimensional pieces of rolled metal. Well suited for small-scale production.

Abrasive - cutting

When working with such equipment, abrasive wheels are used. High-quality cutting of metal residues (burrs) is carried out. Cutting material into blanks, sawing profile metal at the required angle from 0 to 45 degrees.

Correctly-cutting

Such equipment processes metal produced and supplied on coils (reinforcing steel, metal strip, wire, rods with profile section). This equipment is equipped with the correct mechanism and automatic unwinding of metal from the reel. The twisted wire enters this mechanism, is straightened over the entire plane and fed into a special receiver for further processing.

Tip: Depending on the material to be cut, you need to select suitable cutting discs. The discs must meet the technical specifications.

Disc machine device

Frame

Or metal structure, playing the role of the base of the unit.

Pendulum unit

This is a peculiar metal part from a metal profile, which looks like the letter “T”. The movable side is mounted on a bracket located on the frame. The movement of the pendulum is carried out by means of bearings, and the return to its original position is carried out by a flexible part (a strong harness or a small spring).

Pipe clamp

The so-called vice, mounted on the bed. They allow you to press the workpiece to give it a stationary position.

Pendulum unit axis

This axis is used to move the disk.

Electrical engine

The heart of the unit. It is he who puts the whole mechanism into action. An asynchronous motor is used for this equipment.

Actuator

A box containing electronics that is connected to the electrical network. On this box there are buttons to turn it on and off.

Wheel protective cover

Steel protection that prevents fragments from the disk from falling directly into the person working on the unit.

Belt guard

Located where the belt makes its movement. This casing is designed to protect a working person from being hit by a belt if it breaks.

Pendulum assembly handle

That part with the help of which pressure is exerted by the cutting disk on the workpiece.

Ground bolt

As with all machines, there is a bolt on the body of the unit that is used for grounding.

Abrasive wheel

Direct cutting disc consisting of various materials.

Sling brackets

(4 units)

bed

This is the area where the main unit of the unit is located.

Adjustable stop

Due to it, it is fixed right size future product.

Tip: If your budget is quite modest, then you can use scrap materials to create parts of the unit. If your budget allows, then it is advisable to purchase all the components in the store. This will improve performance and service life.

Manufacturing of a disc cutting machine

Any invention will require certain parts, whether purchased elements or homemade parts. To create a cut-off brainchild you will need the following:

Metal corner with dimensions No. 24.
Metal channel No. 10.
Movable shaft.
Tubes for making a handle.
Welding machine.
Bearings for the pendulum mechanism.
Electric drive.
Box for storing electronics.
On/off toggle switch.
Starting circuit.
Winding.
Electric drill.
Fastening elements (bolts, screws).

Let's look at the progress of assembling all the equipment:

First of all, with a grinder, blanks are cut into a frame with dimensions of 400x600x1200 mm.
Using welding, the frame is assembled from prepared parts.
A channel is welded over the entire frame. It will give additional strength to the machine and serve as a guide.
Several vertical supports are screwed onto the channel.
Next, the next frame is installed, on which the engine and shaft will be located. The frame dimensions should be 400x600 mm.
A plate intended for the engine is attached to the frame. The best electric motor for these purposes is an asynchronous motor. Its power should be from 1.5 to 3 kW. After installing the engine, it is necessary to connect it to a three-phase network.
The shaft, flanges, supports with a pulley are made on a lathe.
Next, the bearings and pulley are installed.
The box in which the circuit is located is installed in the lower part of the frame.
A shaft with a sleeve is inserted between the vertical supports. Shaft diameter 12 mm. The gap between the bushing and the shaft should be kept to a minimum.
On both sides of the bushing, limiters made from pieces of channel are welded.
An electric motor and a cutting mechanism are installed on a long support beam and on pieces of channel.
The final step is to install the belt that connects the shaft and the motor.

Based on the above assembly steps, we can conclude that it will be much cheaper to assemble such a unit with your own hands. Moreover, during the assembly process, you yourself adjust the entire mechanism, as they say, for yourself.

The button, which is intended for emergency situations, is connected directly, and the engine is connected through a box with a circuit and an automatic machine.

Tip: If you have assembled such a structure with your own hands at least once, you can easily repair such units. This is because you will know the entire mechanism of such a machine by heart.

Manufacturing a cutting machine based on a grinder

In addition to the classic variation of the cutting machine

There is also simplified version machine using a grinder (angle grinder). In this case, a frame is made into which the second frame is attached to the sleeve. It is on the second frame that the angle grinder is secured using metal fasteners.

In order for the grinder to return to its original position, it is necessary to secure the frame and grinder with a tight rubber band or spring. The frame itself is mounted on a prepared bed or on a large and heavy table. The heaviness of the table will ensure a minimum of vibration. If a frame is being prepared, then it must be mounted on a foundation prepared in advance. Such an invention could serve good tool in a home workshop or an excellent device for cutting metal.

General reviews about the machine

If you look for reviews on the Internet about this unit, you will only find positive reviews. Indeed, such an invention is very convenient in its own way. With its help, you don’t need to suffer with the grinder in your hands, in a bent state. If you choose a cutting tool for certain jobs, then only a disc cutting machine.

Video reviews

Video review of the disc cutting machine:

Video review of a cutting machine using a grinder instead of a disk:

Video review of the assembly of a homemade machine:

Video review of the cutting machine: