Homemade wood trim. How to make wood trimming machines with your own hands. Loss of sawing accuracy

Trimming wood or Miter saw performs cutting of the ends of various processed 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. A homemade installation has undeniable advantages, which we will discuss 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 do everything right, then your broach machine, made from a 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 usual. hand tool. A huge plus is that homemade trimming of this type 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.
WITH outer side 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 module for soft start. 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 disadvantages:

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 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 the miter machine with your own hands.

A home-made bed can be made by hand through the use of adjustable supports, metal corners and racks from the bed.
Cast working surface a sheet of strong metal protrudes. 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 sheet metal 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.
Make sure you have 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.

TO strengths homemade trimming machines include:

The manufacture of a miter machine will require a lot of investment less money than in the purchase of factory equipment for trimming wood, pipes, polymers, etc. On average, craftsmen spend 500-1000 rubles on re-equipping 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.

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.

Trimmers are a universal tool in terms of the material being processed. They can, in addition to wood, process metal, plastic and foam. This is determined by one or another type of installed cutting disc. 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. Adjustable cutting angle by turning turntable relative to the frame on which it is fixed Circular Saw.

The saw is attached through a swing arm, spring-loaded hinge. The rotary lever (pendulum) provides movement in the 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 hinge axis, 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.

The miter saw is created by hand on the basis of the existing equipment - manual circular saw, angle grinder (grinder). And when mounting disks of a particular type homemade device can be used for cutting a profile on a metal-plastic basis, pipes, which will increase the area of \u200b\u200bits use.

Varieties

Tortsovki are divided into the following types:

pendulum;
combined;
with a broach.

The basis of the pendulum device is the bed. A table is also attached to it, which is based on a turning mechanism with a ruler. This mechanism solves the problem of setting the cutting angle with its setting. The sawing angle can be adjusted by moving the worktable in relation to the substrate surface. The saw component is fixed with a handle and spring-loaded with a hinge. The pendulum moves the saw vertically.

In the combined modification, it is possible to change the angle of cut in two directions. The structure is the same as that of the pendulum trimming, only one more hinge is added. Regarding the change of the cutting angle in horizontal surface– it can be changed in the horizontal direction, which is also opposite to the installed actuator.

Trimming with a broach allows you to translate the cutting component both along the circumference of the hinge axis, and directly along the length of the cut. This is achieved through the existing guides.

Creating a tool

It is possible to make a miter saw with your own hands, taking as a basis the equipment available.

From a hand circular saw

The structure is normal and acceptable to create at home. The body of the trimming unit is made of wood or iron. From plywood sheets (chipboard) they build a base on which they mount vertical rack, having previously cut holes in it for fixing the trimming. The pendulum-type device is made from a board and is attached to the base with a long bolt.

Having prepared a steel rod or a corner, it is attached on top of the pendulum so that the end sticks out. Then a spring is taken, with one end it is fixed behind rear shelf corner, and the second - for a vertical rack. The tension is selected experimentally, but it should be enough to easily hold the hand-held circular saw in the hanging position.

Having removed the handle from the equipment, it is fixed on the pendulum in a pre-prepared hole. The wires are placed in the slots prepared for this, and the power supply is connected. A small slot is made in the table cover, and side stops are fixed to it at an angle of 90 °. If they are made turning, then it will be possible to cut the workpieces at a specific degree. The unit is assembled, it remains to test in operation. Using the drawings, you can make anything, even a very difficult device.

From Bulgarian

Miter saws are able to work on wood, iron, plastic and other materials.

The most famous trimming is based on the use of an angle grinder.

If you manage to do everything correctly, your broach device will have the following options:

disk rotation speed - 4500 rpm;
cutting distance - approximately 350 millimeters.

If necessary, the trimming is dismantled from the unit and practiced as an ordinary hand tool. A big plus is that the homemade device is universal and freely disassembled.

Consider how the manufacturing procedure takes place.

Put rotary mechanism angle grinder on the axis of rotation of the wheel of the unit. Its fastening is made by means of a ball bearing. The recommended size is 150 millimeters, but larger will also fit.
WITH outside bearing ears are welded by electric welding. They are designed to secure the base of the unit. Install with M6 bolts.
The clip should be covered with a protective cover so that chips do not fly at you during operation.
The problem with broach finds a solution easily. To create it, take shock absorbers from truck. Even if they are not in working order, this is not a problem. Remove from shock absorbers lubricant, drill holes for ventilation and cover with a mesh so that chips and dust do not enter the cavity.
Install the soft start module. Thanks to him, you will not experience sharp jerks in the process of starting the trimming.
The final stage is the installation of the saw blade protection.

Depending on the delivered disk, the unit can be used for metal or wood, to trim pipes. But be aware that the power of the unit may not be enough to cut the ends of the pipes. Decide on the specifications of your angle grinder to find out if the machine is capable of cutting pipes, or if it is only suitable for working with wood.

This design has two important shortcomings.

To adjust the accuracy of the cut, the remnants of wood are first used. Then the traction is fixed, and you can get to work.
The unit makes a lot of noise when cutting pipes and working on iron.

Manufacturing of a complex unit

There is a variant with a more complex and heavy weight design. She will definitely handle the trimming metal pipes. At the same time, a home-made device does not require the use of a circular as an element of the unit. But for specific moments of work, it is better to keep a circular at hand.

Based on the selected components, you have the opportunity to make a unit high power. To create it you will need:

an electric motor with a resource of approximately 900 W, and if constant pipe cutting is required, a more powerful electric motor can be taken;
sheet iron;
metal corners;
channel;
hinge groups;
angle grinder;
welding machine;
file;
powerful spring.

When everything you need is prepared, you can start assembling the end machine.

The bed can be made through the use of adjustable supports, metal corners and racks from the bed.
A sheet of strong iron is used as a working surface. It is necessary to make holes in it and grind them with a file.
For the manufacture of a pendulum rack, we use a channel and a welding machine. The design is placed on an iron sheet. Approximate stand height 80 cm.
The frame for the electric motor is made of iron sheet as a stationary plate. The bed is certainly mounted on hinges.
A powerful spring will serve as a stabilizer for the electric motor of the trimming machine. If you find one, then you can refuse the pendulum and belts.
Through swing bolt belts can be tensioned and adjusted. The pendulum can be made of steel so that the design is strong, reliable.
The cutting tool will be a disk of the required diameter. For household tasks, as a rule, a saw blade with a diameter of 400-420 millimeters is enough.

Assembly process
Important Points

The cutting tool is lightweight and compact. Effective as stationary machine. Fixed fixation of the workpiece allows you to perform high-quality cuts. Some crosscutting samples include devices for optimizing the angle cut, a speed controller that allows you to select the mode depending on the type of material, the required quality of processing. The trimming unit can be made independently.

Most often, the saw is assembled from a grinder.

For a good job:

original disc tool must perform at least 4500 rpm.
Cutting length - not less than 350 mm.

If necessary, the grinder installed on the table for the miter saw can be dismantled and used for its intended purpose.

Assembly process

First, a table is made on which the cutting unit will be installed. The frame is constructed from a metal corner using the welding method. From above, the stand is covered with a thick sheet of metal with a longitudinal hole. The edges of the bed are processed with a file.

A grinder saw is mounted on an axle. This allows you to trim workpieces at an angle.. The rotary mechanism is fixed by installing it on a bearing with a diameter of 150 mm. The structure is fixed with a mechanism connected to the axle. The axis is lubricated from time to time to eliminate the occurrence of creaking, excessive friction.

For trimming workpieces at a certain angle at the time of assembly, the saw is equipped with ears welded on the outside of the machine at a short distance from each other. If this is not done, there will be play, the accuracy of the cut will suffer.

When working, it is necessary to ensure that sawdust does not get inside the bearing: this can lead to rapid wear of the mechanism, the rotation of the disk will be difficult. For additional protection lubricant must be used.

The most effective for wood processing is trimming with a broach, a shock absorber. It is better to choose samples installed on trucks: they are more resistant to aggressive mechanical impact, hardy. The part is freed from oil, provided with technological holes that will serve ventilation ducts. As a protection against sawdust, wood dust holes are tightened with a mesh with a small section of cells.

Another useful option for a circular saw is the soft start module. Thanks to him, when starting the machine does not make sharp jerks. The principle of operation of the part is to reduce the speed at the start. As a result, the trimming cutting disc picks up speed gradually. It is difficult to assemble the stabilization module on your own. It is recommended to remove the part from another device or buy it.

On final stage make a shield to protect the miter saw from falling into working area foreign object cutter .

If you have a conventional circular saw, you can make a movable carriage. It is easy to install, assembled from a plywood sheet, guide bars and fasteners: bolts, screws.

Important Points

The machine makes a lot of noise during operation.

In order for the tool to accurately perform the intended cut when processing the ends of the workpiece, you should try to position the grinder as accurately as possible relative to wooden parts. You can adjust the placement of the cutting element with the help of bars, while the thrust must be fixed with a bolt.

The cross cutting machine can be installed in the garage, workshop, basement, and other places. The main thing that working structure was firmly attached to the base.

The saw blade must be carefully selected. It must correspond to the specifics of the work, the characteristics of the material.

The scheme for homemade wood trimming includes a gearbox, rotor, motor, carriage and the saw blade itself. Many devices are made with a primer. Blockers for them are suitable planetary type. It is also worth noting that the gearbox includes an adapter and another regulator. A starter is used to start the modification. Modern devices are sold with different types of barriers.

DIY device

The usual do-it-yourself wood trimming is quite simple. First of all, it is worth choosing a motor for modification. It is more expedient to take a single-phase model of low power. Additionally, a contact-type starter is required for it. It will have to be installed through the terminal box. The frame for the equipment is prepared from steel plates, which are rigidly fixed on the sides.

In order to install the depth gauge, a small plate is soldered. The saw blade must be fixed on the stand. The motor is connected through the rotor. The output contacts of the model should be carefully isolated. The primer for many models is located at the top of the structure.

Features of models with a double primer

Saws with a double primer are suitable for fast sawing of wide boards. Many models are produced on single-phase motors, and their frequency is 1500 rpm. It is also worth noting that the devices are distinguished by high performance. They don't need maintenance. Standard trimming on wood is made with a planetary blocker. Her rotor is attached to the adapter. The casings of the models are used in low density. In some cases, they are fixed on racks. It is more expedient to use starters of the contactor type. To increase the security of the modification, dampers are installed.

Reviews about Makita devices

Makita saws are different high quality and efficient motors. Many devices are actively used in our time professional builders. Their maximum cutting angle is 40 degrees, and the maximum power indicator can reach 3 kW. Devices differ in frequency, as well as dimensions. When choosing a modification, you should pay attention to the casing of the device. Conventional wood trimming is done with one throttle. Their adapters are used with metal clamps. Saw blades are changed using a key, which should be included in the product package.

Opinions on saws based on two-phase motors

Trimming with a broach on a tree on a two-phase motor can work for a very long time. The level of overheating depends on the type of ventilation ducts. Modern modifications stand out for their portability. It is also worth noting that there are many devices with multiple ventilation ducts. Models with two handles are in great demand. The rotors of the models are used both with regulators and without it.

A good homemade wood trimming has a frequency of 1700 rpm. Not all modifications are suitable for sawing boards. You also need to remember that throttle models are very expensive in stores. Most devices are made on manual starters. However, there are models with electronic counterparts that are made specifically for professional builders.

Features of models with worm rotors

Saws with worm rotors are capable of working with oak and even pine. They have good performance with low energy consumption. Many builders prefer them because of their compact size and durable racks. Carriages are quite often used with pads and are fixed under the motor. A standard wood trimmer has a power of 2 kW, but is not capable of boasting a high frequency. Flanged versions are suitable for short-term operation. They have a very low efficiency.

Reviews about the devices of the firm "Fort"

Saws of the brand "Fort" reviews, as a rule, receive positive. Models of this company are chosen for high performance and high-quality adapters with locks. Guides are often made on stops. This achieves high degree stabilization at high speeds. It is also worth noting that there are modifications with distributors that are able to operate at a reduced frequency.

Many devices are manufactured with spindle assemblies. However, modern models they are missing. Regulators are used to switch modes. Rotors are quite often installed with an open stem. Support carriages are available with and without clamps. Quite often, wood trimming (pendulum) is used for cutting at a large angle.

Opinion on saws based on a 4 kW motor

Saws based on 4 kW motors are suitable not only for sawing boards, but also for processing fairly wide bars. Many modifications are made with a primer. It is also worth noting that on the shelves, manufacturers provide modifications with two handles. They differ greatly in size.

If we consider standard model, then its frequency is 120 revolutions per minute. It is also worth noting that there are modifications with a channel cooling system. Throttle valves are used without an adapter. Rotors can be found mainly of the planetary type, which work through the control unit. Brake systems only chain type are used, and visors are used with protection.

Features of models with a kerf limiter

Saws with kerf limiter are classified as universal tools. Starters for modifications can be used mechanically and electronic type. In this case, primers are applied with dampers. Some experts note the convenience of these devices. Limiters are installed, as a rule, under the rotor boxes and do not take up much space.

Available with and without fasteners. It is also worth noting that the market is full of modifications on contact distributors. They are distinguished by increased frequency, and motors are mainly used of a single-phase type of low power. Shrouds are installed only on the rotors. Therefore they have high level noise. However, there is also professional tools. For normal operation of the limiters, open and closed type. Torque is generated by a spring.

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