Trimming machine from a manual circular saw. Selection, adjustment and repair of miter saws. Turn fixation unit

How to make a circle yourself: useful tips

Every owner of a private house or suburban area wants a hand-held circular saw to appear in their power tool kit. It is much easier for its owners to do without the services of carpentry workshops. Nevertheless, every owner of manual circulars already dreams that a stationary circular saw will appear on the farm, since hand tool with all its benefits low price, lightness and mobility) has a number of disadvantages. The main one is the lack of a stable surface with large area, on which it would be possible to cut boards very different thickness, width and length. Of course, some models of manual circular saws are equipped with extended soles and special fasteners, which allows them to be attached to workbenches or tables and turn reverse circular saws into some kind of stationary devices.

A circular saw is always useful in a private home, with its help the tree is easily and quickly processed.

However, the small footprint of the DP soleplate and the small "notch" of the guide bar prevent home craftsmen from being able to handle bulky parts.

How can I do do-it-yourself circular type?

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The motor for the circular must be powerful enough, do not remove it from the drill.

From almost every DP manual, you can do circular ring, which in its own way performance characteristics will not be significantly inferior to a stationary car. The most simple bed for this might be old dining table, on the cover of which holes are drilled for fastening the sole of a round section, and for the saw blade - a slot. The working surface of a stationary installation can be the tabletop itself, a sheet of textolite or metal. The main thing is that the table can withstand the load of processed wooden blanks, so the thickness of even the steel sole should not be less than 4 mm. Fasteners should not protrude above the working surface of the machine, and for fastening manual machines it is best to use countersunk screws to the countertop.

The table itself can become even more functional if, in addition to circular saw, it also attaches to the electric hook. Then, on such an improvised machine, it will be possible not only to see the boards, but also to plan their connection, and if necessary, both the DP and the planes can be easily dismantled and again become a convenient portable tool.

Mitra drank with her own hands.

In this video I will show you how I miter saw made, within 40 minutes, from what lay on the balcony. I'm begging.

FLEECE SAW, DIY. \ FIRMWORK SAW, with your own hands.

On the base management a circular was made saw Miter saw, which showed itself perfectly in the carving of the series.

Circular saw device.

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The design of such a machine transformer is very simple. The lid is connected to one of its ropes. It lifts freely for easy access to the tool during maintenance or disassembly. Sockets for connecting the saw and the plane are installed on the inner surface of the substructure. Of course, the system for turning power tools on and off needs some improvement, but there are no particular difficulties here, since the saw and plane start buttons can be fixed in the on state (by most simple solution is a wrap and a handle with electric tape), as well as switch the new switches of each tool to the outer surface of the table. The photo shows how practical this design is.

Width, depth and angle adjustment

Circular scheme:
1 - engine; 2 - board.

Complete stationary circular saws cannot be imagined without slats that control the accuracy with which the board will spread across the width. Guide (regulating, restrictive) panel can be made of wooden beam, steel or aluminum corner. It can be made removable, but each time you need to attach clamps to the table surface at the right distance from the saw. You can build a steel sled along which the bar will move parallel to the saw blade.

Many DP models are equipped with depth controllers, so adjusting the depth of cut is not difficult for the homeowner, but the carpenter must take into account the thickness of the sole when deriving the desired value. homemade car. Also, more powerful saws have board angle adjustment mechanisms, so you'll need a slightly wider slot on your work surface for your saw blade.

As you can see, it is quite easy to make a circle and even adjustable, simple enough, but we must not forget how safe it is in the process. The base, although it has been changed from kitchen table or made from profile pipes and steel sheets, must be strong, stable and have a smooth and level working plane. All fasteners must be securely fastened and protected from self-destruction. grinding machines and lock nuts, and the electrical fittings and cables through which the equipment will be connected to the network must be suitable for its capacity.

Basically, a miter saw is just a simple circular saw mounted above a table. Due to some features of the tool, it becomes possible to carry out sawing with great effect different materials at a specific angle.

Such a homemade miter saw can cut:

wood;
plastic;
aluminum;
various non-ferrous alloys.

The most important characteristic features miter saws are:

compactness;
light weight.

The weight of the machine can fluctuate up to a maximum of 30 kg. It all depends on the specific model, its functional abilities. Wide application miter saws found in the woodworking industry. With their help, you can solve a variety of tasks.

The use of a miter saw allows you to make a connection in the "mustache". Such machines are called "trimming-cutting". This tool is widely used by craftsmen of framing workshops, it is also used in the manufacture of furniture.

Miter saws allow you to cut parts made from a wide variety of materials. Cut-off models use replaceable discs that allow you to cut the appropriate type of material. Almost all types of miter saws are made in such a way that it is possible to set the tool at a certain angle and a specific size by rotating the table.

On some models of saws, it is possible to turn the tool only in a certain direction. Typically, the cost of such a saw is quite low. When the saw can turn in different directions, the machine receives many additional advantages. However, the cost of such a device is very high.

The 360° rotation of the saw allows you to process workpieces of any complex shape. The saw head is tilted relative to the work table. Adjusting the rotation of the saw is quite simple.

Every craftsman who plans to do homemade trimming must take this into account. crucial point. To determine the required angle of rotation, he must determine which materials and workpieces will be processed by the miter saw.

Normalized is the rotation of the saw at an angle in the range of 45-55 °.

Making and assembling a miter machine with your own hands

To make a bed, you need a thick a metal sheet and steel corners. An old bed is perfect for this purpose.

With a welding machine steel sheet a hole is made, the edges are filed.

For work, a small electric motor is suitable. 900 watts is enough. It is mounted on the base using an additional spring. It plays the role of a stabilizer.

Such a design requires some effort to tilt the system. It takes a lot of force to move the handle. The result is a smooth movement of the saw mechanism.

Device parameters:

cutting disc radius - 100 mm;
spindle speed - 1500 rpm.

Such characteristics make it easy to process wood with a maximum thickness of 70 mm.

If there is no bed at hand, the frame can be welded from metal corners.

Adjustable supports and stands should be provided. The basis of the pendulum rack is a channel resting on a metal base.

As a result, the installation receives additional strength, its mass is added. On such a machine it is very easy to perform homemade trimming.

For work, you can use three-phase electric motor, with a power of 2 200 watts. An oscillating plate is mounted as a support, which is held by swivel joints. The belt pulley of the electric motor is tensioned by a folding device. The pendulum is made from the material that was used for the frame.

For work, saws with a diameter of 420 mm are suitable. The spindle speed must be at least 2800 rpm. With these settings, you can process wooden bars 70 mm wide.

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Benefits of a miter saw

First of all, it concerns small financial investments. The cost of all components is quite affordable for every craftsman. Thanks to high savings, an original and multifunctional crosscut saw is obtained. However, such high savings can only be realized if each component can be purchased very quickly.

For example, no motor certain power can affect the economy of the whole structure.

The advantages of such a homemade miter saw include the fact that it fully meets the needs of the manufacturer. He can select the desired parameter of the machine, make a table of a suitable size, set the rotation speed of the saw.

Of course, the advantage of such a machine is the master's knowledge of all the details and assemblies of the trimming device. He will be able to fix the damage very quickly, carry out the necessary repairs. Such a home-made trimming can be considered a real competitor to factory counterparts.

A wood trimmer or miter saw cuts off the ends of various workpiece materials. The tool is able to cut off excess elements at a certain angle. The advantage of trimming is that when working with it, the workpiece remains motionless, and this allows you to make a neat and even cut.

Many people prefer to do their own trimming. Homemade installation has undeniable advantages, which we'll talk about later.

Trimmers can work on wood, metal, polymers and other materials. But the harder the material being processed, the higher the power requirements of the device will be.

The most popular trimming is based on the use of a grinder. Almost every craftsman has circulars in the garage or at home, so there will be no problems finding the original tool for wood or metal.

If you manage to get it right, then your broach machine, made from manual grinder, will have the following features:

The rotational speed of the circular disc is 4500 rpm;
The cutting length is about 350 mm.

If necessary, circulars are removed from the machine and used with their own hands as a regular hand tool. A huge plus is that this type of homemade trimming is universal and easy to disassemble.

The process looks like this.

Install the rotary device of the grinder on the axis of rotation of the wheel of the machine. Its fixation is carried out by a ball bearing. Preferably 150mm in size, but larger ones will also work.
From the outside of the bearing, ears are welded by welding. They will serve to fix on the base of the machine. Fix with M6 type screws.
It is recommended to close the clip with a protective box, so that when working with a grinder on wood or metal, chips do not interfere with you.
The pull issue is easy to fix. For its manufacture, use another element from a truck - shock absorbers. Even if they are broken, it's not scary. Remove all oil from shock absorbers ventilation holes and tighten with a mesh so that dust and chips do not get inside.
Install the soft start module. Due to it, you will not feel sharp jerks while turning on the circular.
Completes the assembly of the machine with a broach based on the angle grinder, the assembly of protection that can protect the saw blade.

Depending on the installed disk, the machine from the grinder is able to work on soft wood or metal, cut off the ends of the pipes. But be prepared for the fact that your circular saw may not have enough power to cut pipes. Focus on technical specifications your manual grinder to understand whether the machine can cut pipe elements, or the unit is suitable exclusively for woodworking.

This design has two main drawbacks:

To adjust the accuracy of cutting wood with a broach machine, you need to use wood trimmings. After that, the traction can be firmly fixed and work normally;
Similar homemade installation with a broach when cutting pipes and working on metal, it makes a lot of noise, which can negatively affect at least the mood of your neighbors.

Assembly of a complex machine

There is an option with a more complex and heavy-weight design. She will definitely cope with cutting pipes. At the same time, a home-made installation will not require the use of a circular as a component of the machine. But for certain stages of work it is better to have a circular on hand.

Depending on the selected components, you can get a machine with increased power. To assemble the machine with your own hands, you will need:

Electric motor with a power of about 900 watts. If you have to regularly cut pipes, you can choose a more powerful electric motor;
Metal sheet;
Metal corners;
Channel;
hinge groups;
Bulgarian;
welding device;
File;
Spring of impressive power.

When everything you need is assembled at the workplace, you can start assembling trimming machine with your own hands.

A homemade bed can be made by hand through the use of adjustable feet, metal corners and racks from the bed.
Sheet acts as a working surface durable metal. In this table-sheet, you need to make holes and process them with a file.
To weld a pendulum stand for a future machine, use channels and welding machine. The design is installed on a metal sheet. The approximate height of the rack is 80 centimeters.
The stand for the electric motor is made of a metal sheet in the form of a fixed plate. Be sure to install the stand on the hinges.
The stabilizer of the electric motor of the trimming machine is a powerful spring. If you managed to find one, it is quite possible to refuse belts and a pendulum.
Using the swing bolt, you can tension and adjust the belts. The pendulum can be made of metal to make the structure reliable, durable.
Use the executive tool to select a disk of the required diameter. For domestic purposes, a saw blade with a diameter of 400-420 millimeters is usually sufficient.
Be sure to provide for the presence of protective covers, since the assembly of such a machine is accompanied by a certain degree of danger.

When choosing the option of assembling a machine with your own hands, and not buying a factory trimming machine, you need to understand that there will be a rather serious difference between them in terms of quality, accuracy and error in processing wood, pipes, metal and other products.

Advantages and disadvantages

Homemade crosscuts have both strengths and weak sides. Therefore, before proceeding with the manufacture of the machine, we advise you to compare the list of advantages and disadvantages. It may force you to abandon the idea. self assembly machine, or vice versa, be sure to try to trim the pipes without assistance.

The strengths of homemade trimming machines include:

Much less money will need to be invested in the manufacture of a trimming machine than in the purchase of factory equipment for trimming wood, pipes, polymers, etc. On average, craftsmen spend 500-1000 rubles to re-equip a grinder into a machine;
You can choose the operating parameters for the future trimming machine yourself. These characteristics include the depth of cut, the diameter of the disks, the power of the electric motor, the dimensions of the working surface, etc.;
Assembled devices have simple design. Since you assembled and disassembled the instrument yourself, there will be no problems with troubleshooting.

But there are also disadvantages, among which these stand out in particular.

For homemade machines, old, unnecessary materials and tools are usually used. This negatively affects the quality, service life.
They rarely have high power.
In some cases, savings on the purchase of a factory machine becomes imaginary, since a lot of money is spent on repair, modernization, and maintenance of a home-made machine.
You are taking a safety risk by working with homemade trimming.

Having at your disposal a grinder for wood and metal, you can easily make homemade machine. Follow the instructions and follow the safety rules.

The design of the trim is similar to circular saw installed above the desktop. Its main advantages are compactness and light weight. Thanks to this, saws are used not only in workshops, but also on construction sites. Unfortunately, handmade tools are quite bulky and heavy. It is convenient to operate them in stationary mode.

The miter saw is designed for the sole purpose of trimming the ends of lumber under different angles. Due to the fact that during cutting the workpiece is stationary on the table, the cut is neat and clean. Masters dealing with woodworking prefer this particular tool. Moreover, do-it-yourself saws have been successfully used for years.

Trimming from a grinder

Technical characteristics of trimming with a do-it-yourself broach:

disk speed - 4500;
cutting length - 350 mm (much higher than that of a middle-class factory tool).

The tool can be removed from the table and the grinder can be used for its usual purpose.

Manufacturing details:

The turning device of the tool is installed on the axis of rotation of the automobile wheel (pin), it is held by a 150 mm ball bearing (if you can find more, it will do).
On the outside bearing by welding, we fasten the ears for fixation on the base. It is fixed with M6 screws.
To protect against chips, the clip is covered with a box.
We make a broach from shock absorbers from a truck (broken ones will do). Oil is poured out of them, ventilation holes are drilled, which should be tightened with a mesh from dust and chips.
So that at the beginning of work there is no jerk, the saw is supplemented with a soft start module, which slightly reduces the speed.
The last stage of work is the manufacture of protection for the disk.

Design cons:

very noisy;
to adjust the accuracy of wood cuts, trimming bars are used, after which the thrust is fixed rigidly and you can work clean.

Trimming from various scrap metal

This is a pretty heavy trimming on a stationary metal table. It takes some effort to manage it. But in the end, the saw mechanism moves smoothly, without jerks, do-it-yourself trimming is easy.

Specifications:

electric motor power - 2.2 kW;
disk speed - 2800;
cutting depth 80 mm.

Materials and tools required for assembly:

900 W electric motor;
a metal sheet;
metal corner;
channel;
hinge group;
powerful spring;
Bulgarian;
welding machine;
file.

The bed is made of adjustable supports, metal corner and racks from old bed. The working surface is a metal sheet like the surface of a table, in which we cut a hole, we process the edges with a file with our own hands.

The pendulum saw stand is welded from a channel mounted on a sheet of metal, its height is about 80 cm.
The stand for the electric motor is made in the form of a movable metal plate mounted on hinges. When mounting an electric motor, a spring is used as a stabilizer. Then you can do without a pendulum and belts.
Tension belts are regulated by a conventional folding bolt, the pendulum for the mechanism is also made of metal.
As an executive tool, a disk with a diameter of 420 mm is installed on the trimming.

A miter saw is quite dangerous equipment, assembling it with your own hands, you need to take care of the protective boxes and casings. After all, errors in work homemade equipment much more than factory.

Advantages and disadvantages of homemade crosscuts

Advantages:

Making your own tools saves money. For example, about 500 rubles were spent on finalizing the grinder. Price homemade table and the saw mechanism is available to most craftsmen;
basic parameters: cutting depth, rotational speed, disc diameter, engine power, table dimensions, are selected according to their own needs;
having assembled the tool with his own hands, the master will easily find the cause of the problem and eliminate it.

Flaws:

The service life of the tool depends on the quality of the raw materials, and homemade products are usually assembled from all sorts of rubbish;
trimming homemade are rarely powerful enough. After all, for quality work equipment requires careful selection of parts;
sometimes the money saved on the purchase of a factory tool is spent on repairing and refining a home-made one;
craftsmen often save on their safety by not equipping the table and saw with protective devices;
Factory saws are equipped with a graduated scale that accurately indicates the angle of the cut in the tree. It is difficult to build such a mechanism on a home device.

A few more convenient and interesting homemade products, including an excellent stationary, mobile and made in a couple of minutes from several plywood and screws:

All photos from the article

It’s probably not worth explaining what a circular saw is, but not everyone knows such a term as a miter saw (or miter saw). Carpenters, joiners and craftsmen who are engaged in finishing and repair are well acquainted with these tools, because without them it is almost impossible to quickly make accurate cuts in wood at given angles.

Tortsovki is universal tool in terms of material being processed. They can, in addition to wood, process metal, plastic and foam. This is determined by the type of cutting disc installed. Therefore, this tool is also called "metal and wood miter saw".

By the way: if you want to build a house out of wood, do not forget that you need end protection wooden house from moisture fluctuations in paint or impregnation.

Miter saws for wood and their design

It will be fair to divide the types of trimming into the following:

simple pendulum;
combined;
with a broach.

Pendulum crosscuts

The base is the bed. A rotary table is fixed on the frame, which makes it possible to adjust the cutting angle, accurately determining its value with the angle setting ruler.

Longitudinal stops, along which the processed material is fed, are fixed on the frame and do not rotate. The cutting angle is adjusted by rotating the turntable relative to the frame on which the circular saw is fixed.

The saw is attached through a swing arm, spring-loaded hinge. The rotary arm (pendulum) provides movement in vertical plane. Hence the name - pendulum saw.

Combination saws

Pull saws

Trimming with the possibility of horizontal movement of the saw not only around the axis of the hinge, but also along the cutting line in a straight line is called a miter saw with horizontal movement. Such products are also called "wood-broaching miter saws". In the photo behind the electric motor, two horizontal bars are visible. These are the guides for horizontal movement.