Trimming from a circular do-it-yourself. How to make do-it-yourself wood trimming machines

The design of the trimmer is similar to a circular saw mounted above the work table. 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.

A miter saw is designed for the sole purpose of cutting the ends of lumber at various 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:

1. The rotary 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).
2. On the outer side of the bearing by welding we fasten the ears for fixing on the base. It is fixed with M6 screws.
3. To protect against chips, the clip is covered with a box.
4. 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.
5. So that at the beginning of work there is no jerk, the saw is supplemented with a module soft start, which slightly reduces the turnover.
6. 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 rather 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, a metal corner and racks from an 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. The cost of a homemade table and 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;
• homemade trimmers are rarely strong 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 interesting homemade, including an excellent stationary, mobile and made in a couple of minutes from several plywood and screws:

1. Assembly process
2. Important Points

The cutting tool is lightweight and compact. Effective as a stationary machine. Fixed fixation of the workpiece allows you to perform high-quality cuts. Some trimmers include tools to optimize the angle cut, a speed control that allows you to select the mode depending on the type of material, required quality 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 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. Lubrication is required for added protection.

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 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.

At the final stage, a shield is made to protect the miter saw from getting 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 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.

To cut a small piece of wood with high quality, a regular circular saw will do. But with repeated repetition of this operation, very accurate processing of the ends of blanks of identical dimensions is required. For this purpose, it is best to use a wood trimming machine.

This is a more complex device than a simple circular saw. It allows you to twist wooden surfaces saws, in which two main characteristics can be changed: the number of teeth and the diameter of the processing disk.

The main components of the trimming machine

With the help of a miter saw, you can cut workpieces from various materials- plastic, metal, wood. The maximum weight of the unit is about 30 kg or less, depending on the functions it performs. The most widely cross-cutting machines are used in woodworking.

Facing machines wooden blanks consist of several main nodes.

First, it's a table. For the correct operation of the machine, the table must be installed on a stable support frame. To perform complex operations that differ from each other in the nature of the impact on the tree, they are attached to the table rotary mechanisms and various positioners.

A saw blade is a must. It consists of a shaft and a cutting disc attached to it by means of a drive. On the bed, you can install several saw units for simultaneous processing of different places on the workpiece. The unit consists of an electric motor and a torque transmission unit to the shaft.

The mechanism for moving the saw unit along the design can be simple (assembled from shock-absorbing springs and brackets) and complex (hydraulic or pneumatic machine). Its functionality is significantly expanded if you add a mechanism that allows you to extend the cutting disc at an angle to the workpiece.

In addition to the main units, the trimming machine is equipped with auxiliary devices, devices, programming units, simple or complex systems for chip removal.

Characteristics and types of equipment

Trimming woodworking machines have a number of general characteristics. With their help, it is easy to choose the unit that best suits the particular process. These common characteristics include:

• motor power parameters;
• the number of revolutions of the shaft and the possibility of adjustment;
• maximum and minimum diameter of the cutting disc;
• dimensions and indicators of the angles of rotation of the saw units;
• the distance between the table and the lower edge of the edge of the cutting teeth.

To connect the chip removal system, it is necessary that the inlet pipe and the vacuum cleaner pipe have the same diameter. This eliminates the need for mounting adapters.

To prevent the workpiece from moving during processing, it can be additionally fixed on the table with special clamps. The configuration and dimensions of the clamps are determined depending on the parameters of the desktop of the trimming machine and maximum height workpiece being processed.

According to the nature of the movement of the saw units, the machine for trimming boards may belong to one of the types listed below.

In a rectilinear unit, a rigid cantilever beam is adapted for block movement. The height of the console may vary depending on the size of the wood being processed.

In the pendulum unit (CME), the disk unit is located on special hangers in such a way that the finished processed beam has a segmented arcuate protrusion. This is achieved by raising and lowering the cutter during the processing of the workpiece.

In a balancing cutter, the saw unit is attached under the table. The knife is raised 10-12 times per minute using a pedal mechanism.

Finally, there is a stationary machine for trimming. In it, the knife is deafly attached to the selected place on the table surface. The processing of the workpiece is carried out without changing its position on the table and the position cutting tool in relation to lumber.

Self-made from a circular saw

To make a wood trimming machine with your own hands, you need to carefully read the recommendations of those who have already had a chance to work on a self-assembled unit. Assembly diagram homemade machine pretty simple and understandable.

To assemble the frame, you will need a metal corner and a steel sheet with a thickness of at least 5 mm. The electric motor is mounted on the base with bolts and a stabilizing spring. This is done to give smooth movement of the saw units.

To give strength to the structure, regulating supports are included in its composition. The pendulum stand is mounted from a channel, which must be rested against the base of the wood trimming machine.

Note! By selecting each node not only according to the need for design, but also according to the price / quality ratio, you can significantly save on the total cost of a home-made trimming machine.

The main advantage of such a unit is the minimum time spent on troubleshooting. Finding and eliminating them in a do-it-yourself machine is much easier than in a factory-assembled machine.

The approximate non-repair period of operation of home-made equipment is up to three years.

In the future, it may be necessary to replace nodes that have ceased to correctly perform the functions assigned to them. The disadvantages of homemade trimming should include low productivity. It is quite difficult to establish in-line production on such a machine.

An example is a factory-made Stromab RS-40 trim. This machine can process workpieces up to 400 x 65 mm. The cut can be made at angles up to 45 o.

One of the main disadvantages of homemade crosscut saws is the inability to provide appropriate security measures. Almost always on homemade products there are no protective covers on the saw units and in the area of ​​​​movable joints. This may lead to accidents. The presence of small defects on metal parts also negatively affects the safety of work.

Professional trimmers

Completely different level functionality, productivity and safety in crosscut saws designed for professionals. Aggregates industrial production have a lightweight and very stable construction.

All cutting surfaces are securely covered with protective covers. All saw units of machines are equipped with dust extraction adapters.

The main qualities of professional miter saws are high reliability and accuracy when sawing logs and semi-finished wood products.

An important advantage of professional miter saws is the ability to process workpieces from various materials - plastic, wood, metal. In order to adapt the machine to a certain material, it is only necessary to change the cutting disc.

Prices on Russian market for professional trimming range from 15 to 30 thousand rubles. If it is necessary to establish small-scale production of wood parts in the manufacture of furniture, such machines are simply irreplaceable. The most popular and relatively inexpensive professional miter saws are those presented in the table.

A miter saw is most often a circular saw, the structural features of which allow you to best effect saw at one angle or another many materials, including metals.

Today we will tell you what a miter saw is, what its characteristics are, how you can assemble it yourself and what to consider when choosing finished models. It is worth considering how to assemble the trimming with your own hands, because this will save you a lot of money.

Key features of miter saws

Usually on sale There are two types of saws:

• narrow-profile, having a specific purpose;
• models equipped with a number of auxiliary functions.

Different types of saws differ from each other in terms of cost, which depends on the functions of the model and its manufacturer. Most famous brands drinking is:

• Bosch;
• Metabo;
• "Makita";
• "Interskol" and others.

This type of saw, like a miter saw, includes the following elements:

• saw blade for cutting;
• engine;
• footrest with engine start button;
• handle for holding and guiding the instrument.

Regardless of the variety, the trimmer is equipped with a disk based on durable material, which makes this tool universal for various household needs.

Miter saw motor may be:

• collector;
• asynchronous.

The engine of the first type does not need constant monitoring and lubrication of parts, and the second type, asynchronous, is distinguished by its durability and quiet operation. Most often it is located to the right of the cutting element of the structure. However, there are models of tools where the engine is placed at the back, this greatly improves visibility during manual work.

The engine starts to work through a gearbox, and its transmission can be gear or belt. If it is belt, then the tool makes less noise and there is no vibration of the cutting element. BUT gear does not allow the saw to slip when cutting during heavy loads.

Features of the use of miter saws

Trimming, even assembled with your own hands, is capable of sawing such types of materials as:

• plastic;
• wood;
• aluminum;
• alloys based on non-ferrous metals.

These types of tools are good because they are compact and do not weigh too much. Maximum weight of the crosscut saw is 30 kg, this indicator depends on the model and its functional features.

Trimmers are widely used in the field of woodworking, where they can be used to perform a large number of tasks.

Saws of this type allow you to make connections in the "mustache", and such machines are very popular in framing workshops and in the manufacture of furniture.

Some cutting tool models are equipped with replaceable discs that are designed to cut a particular material. Basically, all types of end saws are designed so that they can be placed at a certain angle and size when turning the desktop. And some models allow you to turn only in one direction, this the cheapest options. Naturally, the cost of trimming modifications that can be rotated in different sides, will be much higher.

If the tool can be rotated 360 degrees, even very complex workpieces can be machined with it. Its saw head is tilted in relation to the table, and its rotation can be adjusted without difficulty. But remember that in order to determine the angle of rotation, you need to decide on the materials and workpieces for work.

The most optimal rotation of the tool at an angle is about 50 degrees.

How to make a miter saw with your own hands

If in financial plan it’s hard for you to purchase a tool, then you can assemble it yourself. How to do it, we will tell below.

For the manufacture of the bed you will need:

• thick sheet of metal;
• steel corners (you can take an old bed).

welding machine in steel sheet a hole is cut, and its edges are processed with a file.

An electric motor for assembling a tool with your own hands is not needed too powerful, 900 watts of power will be enough. It is installed on the base by means of an additional spring, which acts as a stabilizer.

To tilt the tool, you need to make an effort, in particular, to move the handle. But as a result, you will achieve a smooth movement for the saw mechanism.

Instrument parameters will be like this:

• 100 mm - the radius of the cutting disc;
• 1500 rpm is the spindle speed.

All these parameters will allow you to easily process wood up to 70 mm thick with a do-it-yourself tool.

Be sure to provide for the presence of adjustable racks and supports. As the basis of the pendulum riser, take a channel that will rest on a metal base.

As a result, our tool will be more durable and weighty, but trimming work with it will be easy to do.

You can take a three-phase electric motor with a power of 2200 W, and for support a swinging plate on swivel joints. Due to the folding device, the pulley belt of the electric motor is tensioned. The pendulum can be made based on the material that was prepared for the frame.

For comfortable work with wood, the diameter of the saw should be 420 mm, and the number spindle revolutions per minute - from 2800. As you can see, high-quality trimming can not only be bought, but also assembled with your own hands.

Advantages of homemade miter saws

Homemade trimming tools have a number of such advantages:

Disadvantages of homemade tools

Of course, along with the advantages of home-made models, there are a number of shortcomings for saws assembled by hand, compared with factory counterparts:

• not all design details have good quality, so there is no guarantee that the tool will last for any length of time. Manufacturers always provide the buyer with information about the warranty period of the product, which, most often, is about three years;
• poor performance compared to factory counterparts. Of course, it is extremely difficult to assemble a tool of high quality and high power on the basis of improvised materials with your own hands. Components must be selected as accurately as possible;
• not every master is well versed in information on electric motors and other mechanical devices. If the choice is made incorrectly, then the tool will often have to be repaired, and this may result in a financial investment that exceeds the cost of a factory saw;
• even if the factory model will have the same specifications, it will be more functional. For example, if using a homemade product you can only make rectangular cuts, then using a factory saw you can process boards at an angle of 45 degrees;
• application safety. Rarely homemade model trimming is equipped with protective covers, sometimes the parts have a number of minor defects that can cause injury when working with the tool. Factory tools are safer to use.

End plate selection rules

Of course, if you have experience and you are not ready to invest a lot of money in buying a tool, you can do it yourself. And if you decide to purchase a model from the manufacturer, then When buying, be sure to consider the following so as not to be disappointed later.

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 moment. 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 will need a thick metal sheet and steel corners. An old bed is perfect for this purpose.

With help welding machine a hole is made in the steel sheet, 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 a three-phase electric motor with a power of 2200 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, the lack of an electric motor of a certain power can affect the efficiency of the entire 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 necessary repairs. Such a home-made trimming can be considered a real competitor to factory counterparts.