Band saw for wood: the pros and cons of the device. Do-it-yourself design. Do-it-yourself band saw - the drawing is not as terrible as its embodiment Assembling a band saw for wood

21.11.2019

For a good owner, having all the necessary equipment is happiness. It is especially important to have various adaptations for those people who live in own house. For example, a homemade band saw will greatly facilitate the work with wooden products. At the same time, as it is already clear, the device can be built by yourself from improvised materials.

Applications and unit design

In principle, the device is used in sawmills in industrial or domestic settings. It has certain advantages and disadvantages, but it is used very widely.

The device of this unit is quite simple. An electric motor and pulleys are mounted on a stable frame. A cutting blade is attached to them. Thanks to the engine, the operation of the device is ensured. Depending on the type of blade, you have the opportunity to cut not only wood, but also metals, alloys, polypropylene.

Advantages and disadvantages of the device

Do-it-yourself band saw is done quickly enough. Naturally, in this case, you must comply with all the requirements of the drawing and be accurate. However, first you need to decide whether it is worth doing it. To do this, it is necessary to consider all the pros and cons of the unit. So, among the advantages are the following:

High level of performance.

Low heat dissipation.

Excellent work accuracy and high speed.

Possibility to manufacture blanks according to individual parameters. At the same time, you can cut not only in a straight line, but also in curved bends.

For the manufacture and use of the tool you will not need a large number of Money.

3. Carbide. They can be used to cut alloys that are difficult to work with.

4. From tool steel. Such canvases are most often used at home or small workshops. They are best suited for working with simple materials.

Types of machines

Before you start making band saws, you should understand their types. There is such a classification of devices:

Toothless. They have high performance and can work with metal. A feature of such devices is that they still have small teeth. They work due to friction and additional heating.

Serrated. They can be used to cut wood or plastic. A feature of the canvases in such devices is that they are closed.

Electrosearch. Most often they are installed in large industries where you need to process a large amount of material.

What materials are needed for manufacturing?

It should be noted that not the entire structure can be built from improvised means. Therefore, before making a band saw, you should collect the necessary parts:

Screwdriver.

Bulgarian.

Screwdrivers.

A hammer.

Naturally, other tools may be needed. For example, a milling machine.

Instructions for the manufacture and assembly of the device

Now you should start producing the presented unit. To do this, you will have to carry out several steps:

1. If you decide to make an assembly such as a band saw with your own hands, you should already have drawings. They are the key to success. It’s worth starting with the construction of a table and a cabinet on which the mechanism will be fixed. For this you will need furniture board or a tree.

3. Now you can make a frame for assembling the entire device. It may have a C-shape, which provides good tape retention. Base frame It is made from a channel on which a steel axle is put on.

4. Now let's deal with the pulleys. They must be put on the axle with bushings, and at its different ends. Naturally, both pulleys must be balanced.

5. In order for the tape not to vibrate, it is necessary to use a damper.

6. All moving parts must be connected to the motor.

7. You can also build a guide mechanism with which the material to be processed will be fed. For this, metal corners are used.

Features of setting up the device

Homemade must be carefully prepared for work. To do this, it should be tested and adjusted. The cutting tape must be strictly at a right angle. Any slight distortion can stop the operation of the machine and become life-threatening.

Please note that the cutting belt must be as tight as possible. Use the driven pulley to adjust. It is with his help that you can normally adjust your machine. It should also be noted that the welding of band saws used in the manufacture (it is quite simple to do it with your own hands) will ensure good strength and stability of the machine.

Saw sharpening

Naturally, any equipment needs periodic repair and inspection. For example, sharpening band saws with your own hands is quite simple. The main thing is to know its technology. For work, a special machine is used. All work consists of several stages:

1. Initial sharpening (eliminates cracks that have appeared, restores the symmetry and profile of the teeth).

2. Cleaning the canvas from sawdust and dust.

3. Wiring (for restoring the rear and front corners).

4. Final sharpening. It eliminates all distortion and sharpens the teeth.

If you do not have experience sharpening saws, then all actions should be done as carefully as possible. The quality of the device depends on this procedure. If you are not confident in your abilities, then invite an experienced specialist.

What problems can arise during the manufacture of the device?

First of all, you will need sophisticated equipment to do some of the work. For example, not every master knows how to use welding machine. Not everyone has milling machines. Please note that the entire structure must be stable. In this case, one should not forget about the mass of the material that will be processed.

Not everyone manages to deal with the drawing. Please note that the disadvantage of such an apparatus is a fairly wide cut. In general, if you want to build such a unit yourself, stock up essential tool, material and patience.

Features of the saw

Even after you can make the presented design, you should learn how to use it correctly. For example, try to follow all necessary safety rules. Please note that in some cases the blade may burst, so if you are not sure about the strength of its fastening, then do not get too close to the machine.

Observe the following rules for using the device:

The larger the workpiece to be processed, the larger the teeth should be at the saw.

It is better to use universal cutting tapes. This way you don't have to change the blade every time you need to process some other material.

Before manufacturing the device, it is necessary to choose the place where it will stand. This takes into account the size of the room, the presence of electrical wiring. Naturally, this place should be well ventilated.

Before work, try to stretch the cutting tape as much as possible. Otherwise, the machine will not only not perform its functions, but will also become hazardous to health.

The unit must not operate for more than two consecutive hours. After that, the tape is removed and left alone for at least a day.

After a long period of work, the machine must be lubricated. Find the right product for your car.

Correct tooth alignment is required.

That's all the features of manufacture and use band saw. Please note that this device requires appropriate care. If you see that it does not work correctly, then it is better to wait a little with the start of its operation. Be attentive and careful.

The inhabitants of their own homes, who prefer to do everything on the farm with their own hands, often have a need to saw wooden blanks. Buying a ready-made device for these purposes is quite expensive. Making a band saw for wood with your own hands is not the best simple task, but for a hardworking person it is quite doable. The main motivation is to save money, since old disassembled furniture and other improvised material can be used to create structural elements.

The design and scope of the band saw

A band saw assembled according to the provided technology can be used both at home and for industrial purposes, for example, at a private sawmill or a small woodworking enterprise.

Depending on the specifics of the application, the design of the tape apparatus may vary somewhat, but the main elements are always the same:

stable frame- mainly wooden, since welding is not required for its manufacture, which greatly facilitates the assembly process.
electric motor- ensures the functioning of the device (a drill connected to the pulley shaft is suitable for a home band saw).
Pulleys- rotating mechanisms that are installed on the frame of the device provide fastening and movement of the saw blade.
cutting tape- a sharp saw blade that moves quickly and cuts a wooden workpiece (there are types for metal and polypropylene).
Other structural elements- belts, tabletop, guides, protective cover, sawdust container and others.

The main advantages of a band saw for wood

Compared with other types of sawing machines, a band saw for wood has a number of significant advantages:

High performance and low heat dissipation.
High speed, accuracy and quality of cutting.
Excellent maneuverability, allowing you to cut not only straight, but also figured workpieces.
Safety - using a band saw is much safer than its disc or chain variety.

A homemade band saw has the main advantage of being cheap to manufacture and use.

The process of making a band saw for wood with your own hands

Making band saws with your own hands is a responsible and time-consuming process, but money savings, availability and quality of the work performed compensate for this.

Frame requirements and preparation

For the manufacture of the supporting frame, you should choose a thick beam of hardwood (maple is perfect). This is necessary so that the design of the device can withstand future loads and does not vibrate during sawing work.

Initially, you need to develop a drawing of the future band saw. It can be schematic or detailed, indicating the dimensions of each element of the apparatus. The height of the frame directly depends on the size of the room and the features of the planned use. It is necessary to consider the height of the table, its dimensional characteristics, the diameter of the pulleys and the length of the supporting beam. After carrying out all the calculations, individual elements are made from improvised material.

Frame assembly

The band saw frame is a C-shaped base, consisting of a carrier beam and two pulley supports fixed to it, for the manufacture of which thick plywood can be used. The supports must be installed at a sufficient distance from each other, taking into account the specifics and dimensions of the materials planned for cutting on the machine.

Table assembly

The dimensions and height of the desktop are selected individually for each master. An important requirement is that two pulleys (driven and driving), an electric motor and a chip box should be placed under the table. Often workplace performed in the form of a closed pedestal that contains all the described details. The tabletop must have a slot for the cutting tape.

Pulley installation

The diameter of the pulleys can be any, but it must correspond to the dimensions of the entire apparatus. To work with wide blades, you should choose wheels with a large diameter and thickness. The ends of the driven wheels must be convex, which ensures self-centering of the cutting blade, and the drive wheels (belt drive pulley) - with a recess that guarantees reliable fastening of the belts.

On the ends of the wheels to protect the tree, it is necessary to pull bicycle tubes or you can wrap them in several layers with electrical tape, but this method is only suitable for small devices.

To adjust the belt tension, the upper pulley must be mounted on a movable block equipped with a handle, which, when rotated, pulls the wheel up, as well as a special screw that weakens or fixes the structure. The lifting mechanism can be any, which is left to the discretion of the master. Instead of a bar, a handle and a screw, a lever, a very tight spring and bolts provided at different levels may well be used.

The lower part of the apparatus consists of two wheels mounted on one shaft. On the first wheel, located parallel to the upper one, the cutting blade is pulled, and the second one acts as a drive and is connected by belts to the electric motor.

Canvas selection

The cutting tape can be made independently, but this is an extra and unjustified work. The quality of sharpening the tape affects the accuracy and aesthetics of the cut. Therefore, it is better to purchase a finished tape fabric. The choice of their varieties in stores is huge, they differ in the number of teeth, tooth separation and their sizes (small, medium or large).

Machine settings

The band saw before starting work is carefully prepared and tested at idle. You need to check that:

the wheels are located strictly parallel to each other, and their rotation is carried out easily, smoothly, without jerks and beating;
the cutting belt is well stretched and is strictly perpendicular to the working plane.

Failure to comply with the indicated requirements can lead, at best, to a distortion of the cut, and at worst, to the tape jumping off the wheels, which is dangerous for the health and life of the master. An excellent constructive solution is the installation of guides made in the form of a bar and three roller bearings holding the tape (instead of two side ones, wooden blocks can be used - limiters). The safety of the entire structure will be ensured by a special casing, consisting of two separate parts covering the pulleys.

Possible problems

In the manufacture of a tape sawing machine, some difficulties may arise:

You need to be able to prepare drawings and work with them.
You will need a variety of equipment, such as a jigsaw, a circular saw, drill, screwdriver and more.
It is necessary to ensure the stability of the entire structure in order to subsequently process heavy materials.

List of disadvantages of a band saw for wood

Do-it-yourself band saw for wood, in addition to advantages, has several disadvantages:

This sawing machine can only be stationary and not suitable for transportation to different places.
He has big sizes and takes up a lot of space.
The device makes a lot of noise during operation.
The cutting area is limited.

Saw wheel manufacturing

The saw wheels have a diameter of 400 mm. They just need to be made from plywood or MDF. My wheels are 29mm thick. I glued them from three plywood circles. The most critical area here is the central part of the wheels. The blanks were cut using a milling machine. In the center of the circle, I drilled a hole 0 6 mm and installed the center of the milling compass in it. Then this hole was used for combining blanks and gluing. Cut circles with an allowance of 10 mm for finishing. Shafts 0 25 mm (for purchased bearings) were made for me by a turner. They have a limiter on one side, and on the other - internal thread M12. For the manufacture of flanges used plywood. Before drilling holes in them for the bearing, I drilled a hole of 0 6 mm in the center and, aligning it with the center of the wheel, drilled four holes for the dowels. The position of the flange on the wheel marked. The flange consists of two parts. The 15 mm thick outer part holds the bearing, while the 10 mm thick inner part forms a gap between the wheel and the bearing. The diameter of the hole in the wheel should be slightly larger than the diameter of the shaft. The most important operation is drilling a hole with a diameter of 52 mm for the bearing in the outer part of the flange. Especially for this, I bought a hole saw 0 52 mm and after checking it, I ground it on the outer diameter by 0.3 mm. The bearings were then pressed in with a mallet. Before gluing the flanges to the wheel, I cut out the lower wheel shaft holder - wooden block with a hole for the shaft, which is attached to the bottom of the frame. Drilling a hole directly in the frame is undesirable: it is likely that the drill will lead away. The holder is easier to turn to the desired angle for correction. I drilled four technological holes in the wheels so that clamps could be threaded through them when gluing. Immediately after gluing the wheel put it on the shaft. Thanks to the pre-centering of the flanges and drilled holes under the dowels, one of my assembled wheels had practically no runout, but the second had an uncritical “eight” up to 3 mm. To fit the wheel to the size of the diameter and to form the profile, it was necessary to connect the wheel to the engine. At the first stage, I used a temporary plywood pulley - I screwed it with screws to the wheel. I machined the pulley for the engine using the engine itself, and then connected the engine and the temporary wheel pulley with a belt. Having fixed the wheel, I screwed a wooden block as a stop and turned the wheel to 0 400 mm with the help of turning tools. It is difficult to control the diameter of the wheel on the shaft, so I measured the circumference. It is equal to 1256 mm. The machined edge of the wheel was barrel-shaped. Thanks to this, the tape does not slip off the wheel, but, on the contrary, self-centers on it. The bevel angle should be 5 degrees on each side.

12. When all the details were ready, I glued the flanges to the wheel. 13. I used the lower shaft mounting block as a holder. 14. I turned the wheel to the desired diameter, giving the edge a barrel shape. The bevel in each direction is approximately 5 degrees. 15. After pre-assembly of the wheel. 16. Guide complete with thrust bearing blocks. 17. A guide with an upper support bearing has been installed, but so far without “crackers”. Rubber chambers are stretched over the wheels (after final assembly they need to be glued). 18. The desktop support is equipped with one-plane adjustment. tilt mechanism

Having made both wheels, I installed a standard drive pulley on one of them (read about a similar solution). Its thickness and shape was adjusted to the belt used, and the diameter was calculated so that the speed of the saw blade was approximately 800 m / min. Now all that was left was to balance the wheels. To do this, I took bearings with an external 0 22 mm. They were then used as support for the saw blade. Having fixed the temporary axis horizontally and putting bearings on it, he set the wheel so that it rotated easily, and its heaviest part fell down. With a Forstner drill, I made small indentations in the lower zone of the wheel from the back. As a result of such manipulations, I made sure that the wheel stops rotating in any position. This completes the balancing act. Wheels varnished in two layers.

Then I pulled the cut chambers from 16″ wheels onto the wheels children's bike. The rubber protects the wheel surfaces from being damaged by the belt, reduces noise and prevents slippage. Balancing, however, had to be repeated.

Mounting wheels on the band saw frame

Installed the top wheel first. I put PTFE washers on the shaft. The wheel was fastened with a bolt with a thick washer, screwing it into the end of the shaft. Adjusting bolt set the upper wheel parallel to the frame. I fixed the lower wheel block on the frame with clamps and hung the lower wheel. With the help of a ruler and fluoroplastic washers, I set the wheels in one plane. By shifting the lower block, I ensured that the line connecting the centers of the shafts was parallel to the vertical rack of the frame. This operation was performed with a regular saw blade installed. After setting, the lower shaft mounting block is fixed. After checking the rotation of the saw manually, I decided on a test run. Being careful, I turned on the machine. The tests were successful. The tape moved in the middle of the wheels, no vibration and suspicious noises. Replacing the canvas with the narrowest one, I conducted a second test. It was possible to glue the base under the engine and attach it to the frame.
21. A work table with a zero clearance plate and a saw tension knob were installed. The machine is ready for testing. 22.The desktop can be tilted to the desired angle. The support screw for adjusting the position of the desktop is visible. 23.Strong frame of mobile cabinet-stand.24.Protective engine screen.

Adjusting the saw blade guides

The smooth end of the saw blade rests against the outer ring of the bearing, and “crackers” hold it from the sides. At first I made "crackers" from PTFE, but they quickly wore out. Therefore (on the advice of the author) I replaced them with wooden ones. As a protective casing, I used a rectangular duralumin pipe, cutting it with a circular saw. The casing was screwed to the tire with self-tapping screws. The tire must be set with high precision, since with a length of 300 mm, even a slight misalignment in relation to the saw blade will be noticeable. To mount the tire in the frame, I chose a groove. The markup was carried out on a stretched wide canvas. Then he specified the marking of the groove according to the size of the guide rail. But no matter how hard I tried, when choosing a groove, I made a mistake of 0.3 mm, which led to an error at the bottom point of almost 4 mm. Therefore, I cut out a corner from the rest of the duralumin pipe, expanded the groove in the frame to its thickness, and to correct the position I glued several pieces of self-adhesive paper 0.1 mm thick. Having achieved the desired result, fixed the corner with self-tapping screws. The latch has two holes. One main one is for the maximum tire pressure area, the second is used only with very thick workpieces in order to maximize the tire.

Making a desktop for a band saw with your own hands

First, I made a support with a table tilt mechanism. Made it from oak wood. It is attached to the lower block of thrust bearings. I attached a chipboard lining to the rotary mechanism of the table to increase the rigidity of the table. On the table itself, I put a piece of chipboard worktop. It is quite thick and durable, and its surface is smooth and slippery. Edges sheathed with beech slats. In the working area in the table, I sawed out a rectangular hole, and then milled a notch for an MDF insert. I installed the insert with the saw turned on: I put the insert into the grooves and pushed it all the way, while sawing it to the desired length. When the table is rotated at an angle, I either remove the insert altogether, or make a new one at a specific angle. I made a knob on the nut of the web tension mechanism. I set the tension force by eye - it is almost impossible to tear the canvas. To make it more convenient to set the table perpendicular to the canvas, I made an additional stop for the table. A self-tapping screw screwed into the stop allows you to adjust the position of the table. And so that the sawdust does not stick to the wheels, I installed a cropped toothbrush to the bottom wheel.

Making a cabinet for a saw

I chose the dimensions of the cabinet based on the dimensions of the base of the saw, and adjusted the height so that the table was at a level of 1,050 mm from the floor - this is just right for me. The curbstone was made from scraps of a tongue-and-groove floorboard 35 mm thick. The frame of the pedestal was assembled on dowels. Reinforced the corners from the inside with metal corners. Side inserts - from laminated chipboard. Back wall- from MDF. In general, everything from scraps. The top drawer of the cabinet serves to collect sawdust. The curbstone is established on wheels with a possibility of their fixing.

25. The right wall of the lower wheel housing is beveled at the top to make it easier to change saw blades. 26. The rear wall of the lower wheel guard is tilted and guides the sawdust into the box. 27.The parallel stop is fixed on the desktop. Installing the protection. 28. This is how the protection of moving parts looks like.. The start button of the saw and the backlight switch are installed.

Protective covers and elements of the saw body are at the same time guides for removing sawdust. All working elements of the saw are protected by screens. As a material for casings and screens, I used MDF 8 mm thick and pine boards.

A saw is an assembly tool that is used to cut wood, various metals and other exposed materials.

Tape used in repair work for cutting, pattern and cutting of various materials.

How to make a band saw at home?

First you need to analyze what material will be exposed to the saw, as well as the quality of the tool that will be used in construction. At the very beginning, it is worth checking the sharpness of the saw, its position in the hand and sliding on the material.

In order to make a band saw at home, you need to select all types of band saws:

metal saw
wooden saw
mini wood saw

The metal saw is made on the basis of alloys of various metals, the most common of which are steel, cast iron, copper and aluminum with tin. In order to select a material, use the rules:

Materials must be durable for construction works, and they must be processed different methods necessary to create different shapes. (To do this, use gas or electric welding for cutting, bending and other actions).
The material and the seams connecting it must be strong and resistant to action.
It is mandatory to use inexpensive and non-deficient materials.

Now we need to consider metals for creating band saws and its types. Steel tools are usually divided into two categories:

structural steels used in general construction
special steels with special properties such as: acid-resistant properties, heat-resistant properties

Universal steels do not exist. Steel may be resistant to corrosion, but not resistant to other factors.

Besides:

Cast iron is used for casting large or small parts. From cast iron, you can cast the metal base of the band saw, followed by sharpening the teeth, as well as cutting the teeth.
Copper and its alloys are used in construction and repair, because it has a high corrosion resistance.
Aluminum is produced in the form of sheets that are easy to change into a band saw and sharpen teeth at the bottom. But the main disadvantage of aluminum sheets is their low strength when cutting hard wood or light metal.
Tin is used because it is resistant to organic acids. It is more used as a coating of steel or cast iron, against acids.

As the metal diversity of band saws is described above, we can draw a small conclusion about its production at home. It is advisable to use stronger metal saws so as not to break when cutting hard materials. Aluminum band saws can be used for cutting, but be careful!

To make a band saw with your own hands, you need to purchase a sheet of aluminum (for example), cut it to the desired length and weld at the bottom to make teeth, with a certain step, for example 5 centimeters, and cut at the same distance. This is one way to make a regular band saw at home.

Mini sawmills made of aluminum are used for cutting transverse, longitudinal and circular sections.

Saw frame manufacturing

To make a base, that is, a frame for a future saw, it is necessary to make a drawing on a sheet of metal, which will show the indentation of the next tooth from the previous one. To make the teeth even, you need to bend each part of the distance of the tooth in the direction of the next tooth.

Thus, it remains only to cut these holes with stronger metal knives, and even teeth will be obtained. In this way, you can make a band and mini band saw with your own hands at home.

Upper pulley and blocks

First you need to figure out what is a pulley? A pulley is a wheel that is pulled around by a belt. It is this action that provides movement only to the belt, and not to the pulley.

The main task is to assemble a "machine" for making a band saw with your own hands, build upper and lower pulleys with blocks and belts. The block is the frame that will hold the wheels, or pulleys. It should be taken into account that the block can rotate freely and without interference and help the pulleys move.

To do this, you should:

drawing first and understand the essence of machine operation
then you need to attach the wheels, which can be made of wood or metal
then holes are made in the pulleys, on which the block will be mounted along with the frame

Manufacture of wheels or pulleys

Pulleys are different type, for a single action, or for many actions at the same time. Most often they are recommended to be made of cast iron or steel, but in modern times you can find wooden, and even plastic ones.

If the option is only at home, then various electric machines are used for chopping and cutting medium-sized metal parts.

Sawing table

The sawing area should be several times larger than the band saw itself, because the parts for sawing can be larger than the tool. To do this, you must first find the room in which the work will be carried out, and install the device together with the saw on the same level. In this case, the pulleys themselves should slightly extend beyond the table. The table must be treated from pests, dirt and various substances.

The table should not interfere with the working person during the cut with its dimensions. Most often it is made from pine or oak, but beech and other types that are highly durable can often be used. Wood should be used that will withstand pests, acids and high sawing loads.

Band saw setting

To set up a homemade band saw, you should do a few idling strokes on unnecessary material to make sure that the machine is working properly at home.

It is necessary to pull the belts over the pulleys so that they are in a tight and taut state. Make sure the block and pulley fit correctly on the table surface. Check if the table wobbles and breaks under heavy loads on it.

Keeping everything technical requirements, you can be sure of the correct operation of the band saw with your own hands at home.

Blades for band saws and other saws

The saw blade is the basis for a homemade saw. Such canvases are most often ordered in special factories for the production of metal sheets for various actions.

Aluminum sheets are the cheapest, but they have a lower density and stability. But, if you add some auxiliary substance to aluminum, you can get a more stable alloy. This needs to be contacted by the manufacturer.

It is best to use alloys of aluminum with zinc or iron, as their corrosion is not poisonous.

Do-it-yourself band saw - on video:

A band saw for wood has greater operational capabilities than a conventional hand saw. This unit can be useful for carpentry, woodworking and sawmills. The choice of saw should be made based on your requirements and capabilities.

Manufacturers such as Bukhta, Corvette, Metabo offer a wide range of band saw blades, the blades of which are able to work effectively on wood and allow the master to achieve excellent woodworking performance with his own hands.

The selection is based on several criteria:

Scope of work performed and frequency of implementation;
Functions, tasks that the band saw will perform on wood;
Characteristics of the teeth;
canvas dimensions;
Level of sharpening and wiring;
Manufacturer.

Vertical installation Corvette, devices from Metabo have a number of advantages over homemade devices. Corvette with Metabo are among the leaders of the domestic market.

The choice largely depends on what material you have to work with. Metal work requires the use of an appropriate blade.

Working with metal involves the use of bimetallic blades. Bi-metal cutting tools excel in medium and low carbon steels. You can use bimetallic blades for woodworking, but it is better to equip the Corvette saw with a specialized cutting component.

Choice by scope of work

For industrial purposes, where the work of the saw practically does not stop, the choice should be made in favor of powerful, productive models such as Metabo, Corvette, Bay. Such saws have highly efficient blades, devices have excellent strength parameters.
For do-it-yourself work in domestic conditions, a small workshop, the choice tends to simple Corvette, Metabo models, which are characterized by medium strength, but are able to provide the desired quality of processing with their own hands.

canvases

The choice of blade should be made based on its length, width, performance characteristics of the Corvette, Metabo saw itself, etc. It is important to compare the parameters of the equipment and the cutting tool installed on it.

If you can’t find the information you need in the instructions, take into account a few basic points.

Thin canvases are quickly deformed if work is done with rough products;
Wide blades provide an even cut. The wider the canvas, the better the work will turn out;
Thick blades are not suitable for working with thin workpieces. There is a great risk of damage;
To perform shape cutting or contouring, you need to match the width of the cutting tool and its ability to enter the material at a certain angle.

teeth

Regarding the teeth of the selected blade for a band saw, there are recommendations.

A large number of blade teeth ensures high-quality cutting of thick-walled workpieces.
canvases with a small amount teeth minimizes the load that affects the entire area of the sawn blade.
Tools with multiple edges help distribute stress evenly throughout the bandsaw.
Modern manufacturers produce blades, the number of teeth on which varies between 3-24 units.
The large blade teeth are designed for deep cutting.
If the edges of the blade have a small height, they effectively cut thin-walled products.
An equally significant parameter for choosing a tape is the pitch of the teeth.
A large step is relevant when processing thin sheet products of small formats.
Frequent steps allow the belt to cut large canvases.
The variable pitch is designed to work with soft materials.

sharpening

Bimetal, woodworking bandsaw bands need to check the quality of sharpening. Competent sharpening is checked based on three parameters.

The sharpness of the teeth. The better the sharpening, the sharper they will be. Just check the level of sharpening with your own hands is not worth it.
Homogeneity of woodworking material. If there are no blurs on the tape, the metal is homogeneous, then sharpening should be of high quality.
The uniformity of the lines, the correct angle. If the sharpening of the edges is done well, but the angle between the cutting edges is broken, this will significantly spoil the quality of the workpiece. The angle between the cutting edges must match technical specifications selected tape. Each of them is characterized by a certain angle and features of sharpening.

Before buying a do-it-yourself saw, be sure to ask if it is possible to sharpen the tool if it wears out with use. For most modern band saws, sharpening is a common activity. The instruction is not complicated, which allows you to do the sharpening with your own hands and get the right angle.

But some saws have a strict angle, a clear angle between the cutting edges, in case of violation of which the saw will not be able to return the operational primary capabilities.

Wiring

Wiring is the bending of the cutting blade at a certain angle in different directions. Due to this, the level of friction is reduced, and the web is prevented from pinching.

There are several types of wiring.

Standard. The standard divorce provides for the opposite bend at an angle of the cutting elements on different sides. This wiring is relevant for saws working with hard materials.
Wavy layout. This is a complex structure. Here divorce is characterized by a variable meaning. The peculiarity lies in the formation of a kind of wave. Not the entire saw blade is bent at a certain angle, but some part of the top of the blade.
Protective wiring consists in bending two cutting blades. The third remains in place. Used for belts that work with the hardest materials. Every third tooth has the shape of a trapezoid.

The wiring is carried out so that the teeth have a deviation not exceeding 0.1 mm. If the setting is not done, the saw will be uneven, which will adversely affect the operation of the band saw.

Homemade or factory

It is not uncommon for craftsmen to think about how to make a homemade tape machine. Drawings are widely available on the net, reviews speak of the possibility of assembling the device with your own hands.

But drawing alone will not allow you to correctly assemble a band saw. A home-made vertical installation has a number of features that only an experienced specialist can master.

It is recommended to start with mini band saws, the assembly of which provides for a fairly simple drawing. You will be able to repair, upgrade, sharpen them with your own hands. cutting tools. Take as a basis detailed drawing with all the required build options. Having made a mini machine, you can gradually move on to more serious units.

Factory models are preferable due to the presence of such manufacturers as Metabo, Corvette. Corvette and Metabo companies offer a wide range of band saws, from mini to industrial. It is easier, safer and more convenient to work with them with your own hands.

If repairs are needed, please contact service center, or carry out repairs with your own hands according to the factory instructions.

Factory tape machines preferable to homemade. They win in almost every way. The exception is the price. The estimated cost of a band saw manufactured by Metabo, Corvette is from 20 thousand rubles.