End saw for wood: choose, set up, make from a grinder and a circular saw. Professional and homemade wood trimmers How to make your own miter saw

The presence of a miter saw in the arsenal of a summer resident greatly simplifies life. This type saws can be found in any hardware supermarket, but the price of a branded trimmer will cause huge damage to the family budget.

In order not to overpay, you can assemble a miter saw with a broach from improvised material and old tools that almost every self-respecting man has. In this article, we will look at the process of assembling a homemade miter saw and find out exactly what tools you may need for this.

Characteristics of a homemade miter saw:
✓ 350 mm cutting length;
✓ 4.5 thousand rpm;
✓ relatively light weight.

Advantages of a homemade miter saw

Because the design is based on ordinary grinder, it can be removed and used in work with other material. A home-made machine, unlike its factory counterpart, is completely universal, largely due to its low weight and the possibility of complete disassembly. Another advantage of such a saw is the relatively inexpensive assembly cost: no more than 500 rubles are spent on everything about everything (not counting the cost of a used angle grinder).

Disadvantages of a homemade miter saw

Difficulties in choosing the accuracy of cuts
For the highest quality result, you will have to make several rough passes, then fix the traction and make a finishing saw.

Noise
Due to the fact that the saw is based on a noisy grinder, the unit will produce a lot of noise. This shortcoming can be corrected with the help of a more modern apparatus.

The nuances of assembling the design of a homemade miter saw

The upper swivel part of the unit is mounted on a king pin with the largest bearing on the market. To 150 mm bearing with outside ears are attached through which the unit is attached to the work surface using standard M6 screws. The clip is protected from debris by a specially made partition.

As a broach, it is recommended to use shock absorbers from the front struts passenger car which are used in many cars, for example, in the VAZ 2108-15, and the shock absorbers from the truck will make the structure too massive and unbearable. You can buy them at almost every scrap metal collection point. Before installation, disassemble the shock absorbers, drain the oil, make "air" holes and cover them with residual cloth.

For more comfortable work with the saw, you should adapt the soft start system to the grinder, because without it the starting jerk will be too strong. Moreover, the installation of the block contributes to the reduction and regulation of the number of revolutions. To increase safety, additional protection is attached to the grinder and the frame.

A wood trimmer or miter saw cuts off the ends of various workpiece materials. The tool can cut extra 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 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 usual. hand tool. A huge plus is that this type of homemade trimming is universal and easy to disassemble.

The process looks like this.

1. 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.
2. FROM outer side ears are welded by welding. They will serve to fix on the base of the machine. Fix with M6 type screws.
3. 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.
4. 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 the shock absorbers, make ventilation holes and tighten with a mesh so that dust and chips do not get inside.
5. Install the soft start module. Due to it, you will not feel sharp jerks while turning on the circular.
6. The assembly of protection that can protect 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 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 the miter machine with your own hands.

1. A homemade bed can be made by hand through the use of adjustable supports, metal corners and racks from the bed.
2. A sheet of durable metal acts as a working surface. In this table-sheet, you need to make holes and process them with a file.
3. 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.
4. Stand for electric motor are made from sheet metal in the form of a fixed plate. Be sure to install the stand on the hinges.
5. 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.
6. Using the swing bolt, you can tension and adjust the belts. The pendulum can be made of metal to make the structure reliable, durable.
7. 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.
8. 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.

TO strengths 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.

1. For homemade machines, old, unnecessary materials and tools are usually used. This negatively affects the quality, service life.
2. They rarely have high power.
3. 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.
4. 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 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 double primer are suitable for fast sawing 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 in our time are actively used by 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 clips. 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 enjoy 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. Due to this, a high degree of stabilization at high speeds is achieved. 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 mechanical 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 limiters, rods of open and closed type. Torque achieved with a spring.

For cross cutting at various angles wooden blanks when exact joining of several elements is necessary, it is applied special tool. Do-it-yourself miter saw is made on the basis of existing equipment - from manual circular, Bulgarians. And when installing disks certain type, homemade design can be used for cutting lung metal-plastic profile, pipes, which will expand the scope of its application.

Making a tool from a hand circular saw

The design is simple and affordable for making at home. Frame sawing machine assembled from wood or metal. From sheets of plywood (chipboard) they build a base on which they install vertical rack, having previously cut holes in it for fastening the circular. Mechanism pendulum type made from a board and fixed to a support with a long bolt.

Having prepared a corner or a metal rod, it is screwed on top of the pendulum, trying to make the end protrude. Take a spring. One side of it is fixed to the back of the corner, and the other to the vertical stand. The tension is selected experimentally, but it should be enough to freely hold the weight of a hand-held circular saw.

Having disconnected the handle from the tool, it is fixed on the pendulum in the prepared hole. The cables are laid in the grooves provided for this and the voltage is connected. A small slot is made in the tabletop and side stops are fixed to it at a right angle. If they are made rotary, then it will be possible to cut the workpieces under given angle . The circular saw is assembled, it remains to test it in action. Using the available drawings, it is easy to make any, even more complex tool. .

Homemade workbench - the basis for convenient work

For the convenience of work, a trimming machine should be made. Preferably a mobile design, if you have to move to another place or directly to construction site. Therefore, the frame is made collapsible, for which the tabletop is fastened to the legs with self-tapping screws.

To make a workbench, you need to do the following operations:

• Prepare the top frame. It is collected from wooden beam dimensions 40x40. Legs made from similar material, screwed with self-tapping screws and spacers are installed for their greater stability. Or the joints are reinforced with metal corners.
• A tabletop is made from boards. Its width should be 10 cm more than the length of the end saw, and the length should be equal to the width times 3.
• Taking sheets of plywood (chipboard, MDF), improvised tables are prepared and fixed, trying to position their surface on the same level with the swivel mechanism.
• Install trimming equipment.

Since it is difficult to make a rotary device at home with high quality, it is taken ready-made.

Such wood trimming will be in demand in your workshop or during various construction works, in which you can not do without woodworking.

If it is necessary to make a machine with a broach, then for this they take the shock absorbers of the front struts of the car. It is preferable to a passenger car, because they are too massive from a truck. You can buy them at any car dismantling point. Before installing the shock absorbers, in order to facilitate the stroke of the rod, the oil is drained and “air” holes are made in the body.

Homemade saw from an angle grinder

The miter saw from the grinder is one of the most common models. The advantage of this design is that the angle grinder can be removed and, after changing the disk, used according to intended purpose- for metal cutting. The most simple circuit allows you to cut boards at an angle of 90 degrees.

The production order is as follows:

• First, a support frame is made of a metal sheet framed with a corner. A vertical rack made of a metal profile is welded (bolted) to it.
• Brackets are fixed to the pipe section for attaching the grinder, which is wrapped around a casing made of any material at hand. The main condition is reliable fixation of the grinder.
• The pipe is attached to the rack with a conventional bolted connection. To hold in a vertical position, limiters or a self-clamping device are installed.
• Having fixed the grinder, a cut is made in the frame for the entire diameter of the disk so that the workpiece is cut completely.
• The side stop for changing the position of the workpieces is made rotatable. To facilitate the choice of the desired angle will allow marking in degrees.

To assemble a miter saw from a circular saw, a grinder on your own is within the power of every home craftsman. At the same time, in the process of implementing the proposed ideas, great prospects open up for creativity in improving the existing design.

1. Assembly process
2. 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:

• The original disc tool must run 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 built from metal corner by 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 stress, hardy. The part is freed from oil, provided with technological holes that will serve as ventilation ducts. As a protection against sawdust, wood dust, the holes are tightened with a mesh with a fine mesh section.

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

If there is a common Circular Saw, you can make a movable carriage. It is easy to install, assembled from 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 is that the working structure is firmly connected to the base.

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