DIY stationary circular saw. Detailed instructions. Algorithm for assembling a homemade circular saw

For anyone home handyman, having your own stationary sawing machine– this saves time and ensures work safety.

You can buy ready-made stationary circular. The cost of small machines starts from 9,000 rubles; more or less decent stationary saws are sold in the price range from 30 to 100 thousand.

Despite the apparent complexity of the design, any craftsman with basic plumbing skills can make a homemade circular saw. Moreover, during the design process it is possible to add functions not provided by the manufacturer.

What is a circular saw for?

Before starting work, it is necessary to determine the main tasks of the sawing machine. If you just need to cut firewood for the winter, or produce basic carpentry work like making a fence - just a sturdy table with a slot for a saw blade. These options are popular in rural areas.

Circular for working with logs

Of course, there can be no question of any safety or functionality when using such a device.

Some of these “models” have a shaft for securing the knives of a plane or jointer. As a rule, a frame is welded from a corner or channel, an electric motor from discarded factory ventilation is mounted on it, and with the help of a pulley the torque is transmitted to the disk. It makes no sense to describe in detail the manufacturing technology of such a machine.

It's another matter if you want to do carpentry work. In this case it is necessary coordinate table with guides that are fixed at different angles.

Because on such stationary saw You can work with small workpieces - you need to take care of the safety of the operator. It is advisable to provide adjustment of the rotation speed and the ability to easily change disks with different diameters.

Be sure to install above the disk protective cover, and close the rotating parts of the drive with covers. The starting device is equipped emergency switch, and the “stop” button is placed in an accessible place and is large in size.

You won't miss in an accident

How to make a circular, maintaining a balance between economy, functionality and safety

Let's look at the main components that make up a home circular saw. You can make them yourself, but only if you have certain skills and tools.

The frame can be made from a metal angle (channel) purchased from scrap metal collectors. If you have the means, contact a metal warehouse. Legs can be made from old ones water pipes, connecting them with corners.

Good option homemade bed from rolled metal

IMPORTANT! The use of bolted connections is prohibited, since vibration will cause the fastening to come loose.

Electric welding must be used. Be sure to strengthen corner connections mowing. Upper part the bed (on which the table will rest) and the podium for the electric motor are made from a corner with a side of at least 50 mm.

If the machine is equipped with wheels for movement, they must have steel rims and have locks. The higher the weight of the frame, the more stable the machine will be, and the safer the work will be.

IN household A circular saw always comes in handy. Major repairs are a costly and troublesome task. Not everyone can afford to buy expensive tool for processing wooden materials. A DIY circular saw allows you to produce safe work and speed up the construction process. A saw made by yourself has a number of advantages, such as reliability, efficiency and sharpening for immediate needs.

Circular saw

Purpose of a circular saw

Before you begin assembling the machine, you need to clearly define its purpose. For preparing firewood and simple cutting large pieces A firmly fixed table with a slot for a saw will suffice. This species is common in villages and rural areas, the machines do not differ in safety and increased functionality.

To perform a more diverse range of carpentry work you will need best option. The circular machine must be equipped with a coordinate table with special guides, this allows you to change the degree. The manufacture of small-sized products requires increased safety. Speed control is installed and discs can be changed.

Design features of a circular machine

Circulars of any fixed type consist of main parts.

Table for connecting mechanisms. Assembly matched to engines more power preferably with a table made entirely of metal. The surface of the table must be made level with your own hands, for a higher quality product at the end.
The engine in most cases is used from what is in stock. Electric motors designed to operate on mains power for a long time will be preferable to commutator drives.
The shaft is the most critical component of the circular. Finished goods are used most often; in other cases, the unit is made on lathe. It is important to calculate the mounting holes and eliminate runout.

Desktop table circular saw made with your own hands can be used as cutting machine. The cut cannot reach more than 8 cm, so to perform more major works a larger machine will be required.

Stationary machine with your own hands

To perform everyday or one-time tasks, a hand-made circular saw is quite suitable. Small-volume sawing work does not imply heavy loads on the disk drive. Compact tool has small dimensions, which makes it possible to remove it after finishing work specific place. For experienced carpenter you will need to make a circular stationary type large sizes.

Making a stationary circular saw with your own hands will require precision and literacy from the master. Drawings presented in many types of literature will help in manufacturing. It is worthwhile to treat every component of the unit competently and carefully, because the circular machine is used at high speeds with a cutting tool.

Circulation table

Saw blade

The design of a DIY circular saw must contain a saw blade. The working surface of the disk is set to one third of the total diameter. For example, with a diameter of 210 mm, the disk should protrude from the table by 70 mm. Parts with greater thickness will require powerful engine, from 1 kW. A miniature circular saw will not cope with such tasks.

The splitting knife installed on some models serves to prevent short circuits and jamming during operation. It is located at the back a few millimeters from the teeth of the saw blade. The device may also be needed when making a circular saw with your own hands.

Adjustable side support

Any type of work will require a stop. The side support is made of a block of dense wood. In other cases, it is possible to make it from a metal corner. The arrangement should be slightly longer than the table structure. The stop is installed using bolts. The template is installed between the table and the cutter for precise installation and better settings.

Shaft

Homemade shaft

The most important part of the design is the shaft mounted on the circular saw. A self-made shaft for a circular saw can damage the structure and cause injury. The reason for this is runout, which cannot be avoided when making a shaft using artisanal methods. The manufacture of the shaft should be entrusted to a specialist with good turning equipment. You should remember that there is a cutter that needs a seat. The holes must be symmetrically machined and machined.

Finished shafts are sold in specialized markets. Preference should be given to parts with a self-aligning bearing. Otherwise, the conventional mechanism may soon render the circular machine unusable.

Broadcast

There are several types of gears that can be used in the design of a DIY circular saw:

V-belt transmission;
mechanism consisting of gears.

The preferred option is to use a belt drive. Using a mechanism with gears can lead to jamming if hit foreign body and injury to the employee. When choosing the pulley diameter, take into account maximum quantity revolutions of the saw blade.

Motor

Homemade machines are equipped in most cases with an engine from an old washing machine. The main features are increased service life and efficiency. The speed of such engines is not high, which makes working on a circular saw assembled with your own hands safer, longer, and has a positive influence on the result. The use of a special three-phase motor implies the presence of a 380 Volt network. If one is not available, you will have to use a starting and running capacitor, which leads to additional costs.

Circular saw from a grinder or circular saw

When working with small workpieces, it is enough to get by with a small circular saw. A circular saw is made with your own hands from available power tools; you will need a grinder or a circular saw.

There are many options for stationary use of improvised tools. It is enough to secure the device from the bottom of the table to access the material to the disk. The height is adjustable depending on the workpiece, but for safety reasons should not exceed one third of the size of the saw blade. This installation option is not available for the switch; it is necessary to modify the device for convenient operation.

A fairly common option is to use a frame on guides. The simple design allows you to use the tool to work at any angle. Consists of two parallel installed metal pipes or corners on which the saw is mounted.

A DIY circular saw makes the work you do faster and more economical. Such a device will be needed when major renovation and other activities related to cutting wood. The simplicity of the design, the possibility of using scrap materials, make the cost almost zero, and making it yourself allows you to add the necessary functionality for the job.

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How to do cross-cutting machines DIY woodworking Disc sawmill with your own hands

A DIY circular saw is an excellent tool for solving large number household and other tasks. In fact, it is not difficult to make this device yourself, even in that situation, if you do not have any special skills, the most important thing is to at least slightly understand the principle of processing metal alloys.

The materials needed for the job can be found in your home workshop or garage. So, circular from circular saw with your own hands made from the following elements:

corner made of strong steel;
rectangular profile pipe;
engine.

The finished circular saw can be placed on a workbench. If you don't have one, you'll have to make the table yourself. The engine can be taken from an old walk-behind tractor or washing machine.

Circular from an angle grinder

If you have your own grinder, This is very good. To create a “circular” you need to make an axial handle and a sliding stop for the unit. The design of the sliding stop includes a pair of pieces of steel angle placed on the sides of the saw blade. Using nuts and bolts, they are connected by a transverse ligament, and the gap between the working part and the sides of the structure will be ensured by washers.

On the “grinder” you need to pre-tighten the metal band clamp with the screw tie down. Then you need to attach a folded metal strip to the holes for the sliding stop. The stand and clamp can be combined, but in this situation the metal strip will be too thick.

Then you will need to make several holes for the bolts in the gearbox of the future tool. For this purpose, the body is disassembled, and the points where drilling will take place are indicated. Using the holes made, the axial handle is secured, because the “standard” handle will not allow you to make a good cut, even if the master has very strong hands.

The handle is made from a metal tube or rod. The design can be shaped like a horn or a bracket. The ends of the element, with which it will be attached to the gearbox, must be provided with holes for installing fasteners.

You also need to make a bar that will regulate the process. For this purpose, you need to take a piece of metal rod, make a loop from one end, rivet it slightly and make a hole for the front thrust bolt.

The other end of the rod needs to be threaded, which will allow you to connect it to the handle. In advance, one strong nut should be screwed onto this thread, and after the structure is assembled, a second one. By lowering and tightening them, you can adjust the cutting depth. By the way, if you use a drill instead of a grinder, you can make a similar tool.

In this way, you can independently make a good circular saw from an ordinary grinder, with which you can cut various materials.

Compact tabletop machine

Above we talked about how to assemble a manual circular saw. Now we’ll tell you how to turn this device into a stationary one. This process involves making a U-shaped frame from a pipe, as well as installing a wishbone. The lower ends of the structure should bend horizontally in the direction of the cut. They are attached to the table using bolts. Stability is ensured by additional supports.

Lever Mobility is ensured by cutting a horizontal segment into two identical parts, which are fixed together with clamps. The saw blade is attached to vertical element frame with clamps.

Stationary installation

A machine similar to factory models requires proper handling during the assembly process, so you need to take care of all the little things in advance. Desktop option“circular” differs from the stationary one only in the height of the bed, which is determined by the characteristics of the work and the size of future workpieces. One-time processing can also be done using ordinary table saw, which after work can be easily put away in a pantry or shed. But a craftsman who constantly deals with wood will need a stationary installation. Therefore, he needs to make his own circular saw table.

The circular saw has the following advantages:

Such equipment allows you to make better and deeper cuts.
The machine is much more convenient than manual equipment.

From the above, we can conclude that self-made circular saws have a completely understandable and simple design, and the drawings, which can be found on the World Wide Web, will greatly simplify the process of assembling equipment. Before self-production“circulars”, you should separately consider all the necessary elements in order to understand the nuances of the operation and installation of homemade equipment.

Many summer residents and owners of private houses were faced with the need to process and saw boards, plywood and other lumber. For such work you will need a circular saw, which will not be difficult to do using available tools. This homemade equipment will not be inferior to the purchased one in functionality and quality of execution, allowing you to save several tens of thousands of rubles on the purchase of ready-made units.

Description of equipment

DIY circular saws can be stationary or portable. Design the simplest circular will include a metal or wooden supporting frame, inside of which are mounted an electric motor, an electricity supply control unit, a table top and the working saw itself, which is mounted on the circular shaft or installed through gears and a trunnion mechanism. The saw is located in a slot in the table top, which makes it easy to cut lumber, performing high-quality processing wood.

The tabletop can be made from lumber or you can use ready-made metal blanks for this. Smooth easel tables are made from wood, The top of such a tabletop will need to be covered with a durable metal sheet. Otherwise without metal protection the wood will begin to wear out quickly, and the equipment will last several years during active use, after which complex and expensive repairs will be required.

First of all, you need to decide on the main tasks of the sawing machine. If you need to saw boards or firewood for the winter, then it will be enough simplest installation from a strong table with a slot for a disk.

Some models imply the presence of an additional shaft to which knives, a jointer and a plane are attached. Such universal machines are equipped with powerful electric motors, which allows you to perform wide range wood processing works. When manufacturing a multifunctional machine, it is necessary to be guided by high-quality diagrams and drawings that will allow you to create universal and reliable equipment.

If you need to perform various types of carpentry work, then set up a coordinate table with guides. Existing stops and guides can be fixed under different angles, which allows not only to ensure safe operation of the machine, but also to perform high-quality wood processing, easily changing blades to saws of different diameters.

Advantages of homemade equipment

Very popular homemade circulars are used due to the simplicity of their manufacture, durability and reliability. Today many summer residents use homemade units, rather than buying expensive equipment in specialized stores.

The main advantages of this technique include the following:

The versatility of the tool.
Ease of manufacture.
Possibility of significant savings.
Reliability and durability of equipment.

The designs of stationary and mobile circular saws available on the Internet and in thematic printed publications make it possible to produce equipment for processing both thin workpieces and thick lumber. You can choose the simplest options that do an excellent job of processing lining, thin slats and plywood.

Characteristics and power

The functionality of using the equipment will depend on the correct choice of parameters, including speed indicators and drive power. The power rating is affected by the maximum permissible diameter of the toothed saw. It is believed that to process lumber with a thickness of about 10 millimeters, an electric motor with a power of 1 kW will be required. Based on the thickness of the processed and sawn timber, you should select the power of the electric motor.

Transmission from the drive in a self-made circular machine is best done using a V-belt. This allows you to ensure the necessary safety of using the equipment. When foreign objects get under the saw, the V-belt drive will slip on the pulleys, which eliminates injuries and jamming of the working disk.

Making a circular saw

Before proceeding directly to production circular saw it is necessary to think over its structure and design, and ideally to select a drawing diagram according to which all work will be carried out in the future. When planning the manufacture of the frame, it is necessary to remember that such a design must be stable and reliable. For industrial powerful saws, the base is made of reinforced welded metal structure. For household models can be used for bed wooden blocks with plywood or weld a base from a metal corner.

The choice of electric motor used will depend on what kind of work and what kind of wood is planned to be processed on the machine. The drive can operate from a single-phase electrical network, or powerful industrial motors are used that operate from a three-phase electrical network.

You can make a powerful and easy-to-use circular saw from a washing machine motor. This won't be too difficult. Such engines are compact in size and operate from single-phase network with a voltage of 220 volts, they are reliable and capable of operating at high speeds.

One of the most important components of a power saw is the shaft on which the working saw is mounted. You can use a ready-made shaft from similar equipment or make it using a milling cutter from round timber. Turn the shaft on a lathe, checking for perfectly accurate centering. Even minimal shaft runout is not allowed, since in the future it will be impossible and unsafe to work on such an incorrectly centered circular machine. Seats for pulleys and a circular saw should be made on the shaft.

The saw blade should rise above the surface of the worktop by a maximum of one third of its diameter. Otherwise, with a higher saw height, it will be difficult to process wood, and working on such a machine will simply become dangerous. If it is necessary to work with timber, the diameter of the saw blade will be approximately 350 millimeters. To process boards, you should choose small disks with a diameter of 250-300 millimeters. The quality of the saw blades used must be given due attention, since in the future the mini-circular saw will bear a significant load, low-quality blades will quickly become dull and require replacement.

Materials and tools

Making a circular saw with your own hands is not particularly difficult. For such work you will need following materials and tools:

In each case, the design of the circular machine will be different, so it is necessary to select certain components, which will allow us to produce functional and reliable equipment. When using lumber to make a base and desktop, the wood will need to be coated with impregnations that protect the material from rotting and moisture.

Step by step assembly

You can make a stationary circular saw with your own hands from a grinder and a hand cutter without making any changes to the design of the working tool. The base is made of lumber, which significantly simplifies production, eliminating the need to use complex welding equipment. Step by step instructions:

This option for making a circular saw will be an excellent choice if you need a tool for cutting boards up to 3 centimeters thick. If you need to make a powerful and multifunctional device for your home, then use electric motors with a power of 5 kW or more, which allow you to process and saw boards 5-8 centimeters thick.

Making a homemade circular saw is not particularly difficult. You can use grinders or hand saws, which are mounted inside the wooden base of the machine.

Some craftsmen make more complex tools that involve the use of powerful electric motors, V-belt transmission and saw blades of larger diameter. If you have any difficulties, you can find thematic videos online that tell you how to make a circular saw with your own hands.

Contents:

Machine tools circular type belong to the class of specialized processing mechanisms, without which not a single well-equipped home workshop can do.

This example of woodworking equipment is especially relevant in conditions country house and dacha farming.

When assessing the possibilities of purchasing ready-made equipment, you will encounter a number of problems associated with the inconvenience of handling cheap stand-alone circular saws and the prohibitive cost of professional processing equipment.

The only correct approach to solving this problem is to make a circular saw with your own hands, using materials and equipment that are commercially available.

Pay attention! In order to save money in small-sized machine models as cutting tool Most often, a stand-alone circular saw is used, which is rigidly mounted on the bed.

By using homemade machine you will be able to saw boards, plan slabs, and also make bars of the desired section.

If desired, you can significantly expand the functionality of your product by providing it with the ability to process wood using an electric planer.

Design requirements

Before starting work, it will be necessary to prepare a small sketch, which should indicate not only the location of all structural elements future machine, but also their main dimensions. When drawing such a sketch, you should take into account that your circular saw may consist of the following functional units:

bed, which serves as the basis of the entire product;
tabletops with an industrial prototype of a hand-held circular saw installed on it;
remote control panel for turning on and off the actuator (circular saw).

Small-sized tabletop circular saw

The specified composition of the machine is typical for small-sized products on a wooden frame. For capital equipment manufactured on the basis metal profiles(corners) its diagram has a slightly different appearance. Such a product must include the following elements:

a base made of steel frames and brackets on which a shaft with a drive pulley is mounted in bearing pairs;
a table top with slots for the processing blade, installed on top of a metal frame and rigidly fixed to it;
a set of special drive electrical equipment located in the lower part of the frame and providing the required functionality of the device (it includes an electric motor, a starting device and a transformer-converter).

The main requirement for any type of frame is to ensure maximum reliability and stability of the structure. As options for the machine base, we will consider both frames made of metal profiles (corners) and load-bearing structures made of wood.

When familiarizing yourself with the requirements for the electrical equipment of a homemade machine, first of all, you should determine the drive power of the cutting tool (or autonomous saw), which for living conditions should not exceed 850 watts.

Stationary circular saw

In addition, before preparing a sketch of the future product, the following should be taken into account: technical specifications equipment used, such as:

The depth of cut, which specifies the permissible thickness of wood pieces to be processed on your machine. This figure for industrial samples of woodworking equipment ranges from 5 to 8 cm, which is quite enough for cutting standard boards and thick plywood.

Additional information: In the event that you need to process wood blanks of greater thickness, it is necessary to provide a special lifting mechanism, allowing you to change the position of the disk in height.

Before manufacturing a capital machine with a separate drive, the operating speed of the electric motor rotor should be taken into account. The choice of this parameter is determined by the lumber processing modes with which you will most often have to deal. For simple cutting of wood pieces, this figure can be relatively low, but to obtain a perfectly smooth (“clean”) cut you will need a higher rotation speed.

Important! The optimal speed for homemade cutting machines is considered to be a rotation speed not exceeding 4500 rpm. At low engine speeds, the frame can be made on the basis of a reinforced wooden frame, massive enough to prevent vibrations of the mechanism.

When drawing up a sketch, ergonomic requirements should also be taken into account, implying ease of control of the operation of the equipment, as well as safe handling. They relate to the order of the buttons on the operating panel, restricting access to the cutting blade, as well as the electrical security of the drive or individual controls.

After all possible requirements for the future machine have been taken into account, you can begin to assemble it directly.

Bed based on metal profiles (corners)

Upper part metal frame It is most convenient to make it in the form of a rectangular frame 600 by 400 mm, welded from 25 mm corners. Pipe blanks 220 mm long are welded to the four corners of this structure (recommended pipe diameter is 17-20 mm).

The bed must ensure rigidity of the machine structure

Two longitudinal angles are fixed to the frame using bolts, used to secure the shaft in the bearing race.

The distance between the angles is determined based on the length of the shaft, and the bearings used for installation are secured to them with special clamps.

In order to give it greater stability, the lower part of the frame frame is made (welded) from metal corners by 40 mm.

A closed type bearing is used to secure the working shaft.

Two jumpers made of the same material are welded across the frame, used to secure the electric motor. There is also a metal platform intended for mounting launch equipment.

Bearings are attached to the frame using special clamps

At the corners of the resulting structure, pipe blanks are welded with a length corresponding to the size of the pipes on the upper frame, but with a slightly larger diameter (23-25mm).

Closer to their edge, special clamps (wings) are made, used to clamp the lifting pipes of the upper frame, which are moved when the drive belt is tensioned.

The procedure for assembling the mechanical part of such a machine includes the following operations:

first, bearings No. 202 are taken and driven forcefully onto the working shaft;
after that, a pulley, previously turned on a lathe and having an internal groove diameter of 50 mm, is fixed on the same shaft with tension;
then at the end of the shaft a thread is cut for the bolt used to clamp the cutting tool (for a more reliable fixation, paronite and metal washers can be placed under the bolt);
upon completion of this part of the work, we proceed to installing a drive manufactured on the basis of a three-phase asynchronous motor power 1.5 kW, (1500 rpm). A pulley having inner size stream approximately 80mm;
at the next stage of assembling the frame, the two finished halves of the frame are connected together (in this case, pipes of a smaller diameter are inserted into larger ones);
At the end of the work, the belt is tightened on the shaft, and then the structure is fixed in this position using special “wing” clamps.

Machine on a wooden frame

The simplest and affordable way making a machine bed involves using ordinary boards or thick plywood for these purposes. IN this option design, the executive unit is placed directly under the table (tabletop), in which a slot of appropriate dimensions is made for the cutting blade.

The wooden frame is reliable and easy to manufacture

As an example, we will consider the option of manufacturing a frame with a height of approximately 110 - 120 cm, intended for mounting a hand-held circular saw on it. The length of a tabletop of this design can be changed within small limits at your discretion.

Pay attention! The height of the structure can be adjusted if desired, taking into account the height of the person working on the machine. And if necessary, processing on it is very long boards The dimensions of the tabletop can be increased to the required size. In this case, you will have to worry about installing additional support legs.

The most convenient material for making countertops is multilayer plywood with a thickness of at least 50 mm. However, other materials can be selected for these purposes (plexiglass or fiberglass slabs, for example). As for such a common material as chipboard, its use in this case is undesirable, as it does not provide sufficient surface strength.

For the manufacture of a machine wooden base you will need the following materials:

sheet metal preparation;
standard sheet of thick plywood;
a pair of beams with a cross section of 50×50 mm;
thick boards with a standard size of 50 x 100 mm;
steel corner necessary to increase the rigidity of the guides;
circular saw;
two clamps.

In addition, you will have to stock up on the following set of tools, without which assembly of the machine is simply impossible:

classic screwdriver and electric drill;
a simple wood hacksaw or jigsaw;
measuring instruments (square, tape measure, ruler);
portable milling cutter for wood processing.

If you don’t have such a milling machine, you can use the help of friends or neighbors who have a milling machine on their farm.

Additional information: Some home craftsmen prefer to make countertops from used kitchen tables. However, such a design will not be durable, since source material was used for a long time in a damp room. That is why it would be wiser to manufacture all structural elements from new blanks, which at the same time will allow you to take into account your personal tastes and preferences.

Making a countertop

Work on the manufacture of this part of the equipment is carried out in the following sequence:
We start by marking a piece of plywood so that its edges are flush with the edges of the prepared sheet of iron. After marking, using a hacksaw or electric jigsaw, you can cut the plywood blank to the required size. If desired, you can process its edges using a cutter, although this is not at all necessary (the main requirement for this element is its reliability, not attractiveness).

Upon completion of these operations, the surface of the tabletop is carefully processed (rubbed) with medium-grain sandpaper.

Then, on its lower part, the location of the slot for the saw blade is preliminarily marked. To do this, it is necessary to determine the dimensions of the sole of the circular saw prepared for installation. To make measurements easier, the blade is simply removed from the saw, after which you can easily determine the dimensions of the seat.

For ease of marking the tabletop, the saw blade is removed

Upon completion of its preparation, you should take a circular saw and try it on at the installation site. If necessary, the position of its attachment points is adjusted (at the same time, the contours of the slot for the saw blade are specified).

Finished plywood tabletop closes up steel sheet, attached to it using self-tapping screws. On work surface Subsequently, it will be possible to apply special markings, allowing you to adjust the position of the wood blank during its processing.

Frame assembly

Both transverse and longitudinal frame beams, used as stiffening ribs, are also mounted on the lower plane of the tabletop. A total of four such strips will be required:

Two transverse lintels that do not reach the edge of the tabletop by 7-9 cm on each side.
Two longitudinal bars, the size of which corresponds to the same condition (they should not reach the edges of the tabletop by about 7-9 cm).

Taking into account these limitations, it is necessary to mark the fixation points of the longitudinal bars and crossbars, at which the latter will be attached to the tabletop using self-tapping screws of a suitable size.

When marking points, the outermost one is selected at a distance of approximately 40-50 mm from the edge of the block (in this case, the step between them should be about 23-25 cm).

Before the final assembly of the frame, through holes for self-tapping screws are drilled in all component parts (bars and table top). On the front side, the fastening elements are installed in such a way that their caps are completely hidden in the material.

To increase the strength of the future frame base, the bars adjacent to the tabletop are pre-coated with wood glue.

After assembly, the structure is temporarily fixed using clamps, which can be removed after the glue has dried.

Attaching the support legs

The table legs are made from bars of a suitable cross-section (most often the same 50x50 mm blanks are used for these purposes). The height of the supports is selected for a specific person, i.e. individually.

This should take into account the fact that it is more convenient to work on a circular saw when the tabletop is at hip level. Before their final installation, the shape of the legs is modified so that they taper towards the supporting part (the area of contact with the frame base must exceed the area of support on the floor).

To increase the rigidity and stability of the structure, steel corners can be used, which are pressed in such a way as to provide additional “strut” for the base. To secure them, special bolts with washers are used, installed with their heads facing outward.

Electrical diagram

In the capital version of the circular machine design, an autonomous drive is used, which includes an asynchronous electric motor, the windings of which are connected to the electrical network according to a triangle diagram.

Wiring diagram for an asynchronous motor of a circular machine

To control the operation and ensure automatic starting of the electric motor, the circuit provides a magnetic starter built on the basis of an electronic switch (triac) and a current transformer.

To build a machine control circuit using wooden frame(an option involving the use of a hand-held circular saw) it will be enough to duplicate the on and off buttons of the mechanism, bringing them out and securing them to one of the legs of the tabletop

You will learn more about connecting the machine's electric motor from the video.