How to Make Teeth on a Saw

The indicator head should go smoothly, without jamming and not getting stuck. In order for the tip of the tooth to abut against the plane of the end face of the indicator, it must have a diameter of 7. 10 mm. Every day or at least once a week, it is necessary to check the indicator zero. To do this, take a glass (it is easier to make) or a metal plate with a thickness of at least 2 mm, a length of 100. 150 mm (so that it fits on the anchor points) and a width of 40. 50 mm. The plate is put in place of the saw, fixed with spring-loaded stops or thrust plate, which should press the body of the saw to the fixed plate, and zero is set.

Since the glass is almost perfectly even, zero is set very accurately, the main thing here is not to transfer, otherwise the glass will simply crack.

Fixed and movable plates

The plane of the plates should be rectangular, without bending, excavation and dirt.

How to make a divorce on a band saw

The task of the wiring is to bend the teeth to the sides to prevent compression of the tool blade and reduce friction.

There are several types of wiring:

  • with the help of the classic wiring, we get the teeth that bend right and left alternately;
  • with the help of a cleaning wiring, every third tooth retains its initial position;
  • With the help of a wavy layout, each tooth is assigned its own limb value (thereby forming a wave).

It is important to know that during a divorce, a part of the tooth is bent (one-third, or two-thirds of the top), but not the whole tooth.

Next, finally, let’s talk about sharpening a band saw.

Band Saw Sharpening

To prevent tearing of the tool during operation, the grinding rules must be followed.

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The hardness of the teeth determines the circle that will be used for sharpening.

How to make a divorce on a band saw

If it is necessary to carry out cutting of thin-walled metals and at the same time have thin chips, the rake angle of the cut during which will be equal to zero, then standard cutting is used. The angle of sharpening can be varied. It directly depends on the structure of the device.

Tooth, which has a positive rake angle, have those saws that are widely used for sawing metal with thick walls.

How to make a divorce on a band saw

The file edge should be approximately twice as high as the tooth.

Saw sharpening guide

This device guarantees uniformity of angle and depth of sharpening of tenon and other hand saws.

Tooth chuck mandrel

A mandrel for divorce will reject the tip of the tooth at a strictly defined angle. The approach of the handles pushes the plunger, which presses the tooth against the stop with an inclination.

Saw sharpening clamp

When sharpening, the saw must be firmly fixed, otherwise it will vibrate noisily and knock the file out of the recess between the teeth.

How to make a divorce on a band saw

Shapes and blade sharpening angle

The geometry of the cutting elements of band saws can be varied, which directly depends on the material intended for sawing. Woodworking machines are most often equipped with special saws, with which you can carry out:

How to Make Teeth on a Saw
  • carpentry work;
  • saw logs and beams;
  • use on dividing saws.

The grinding angle is determined strictly by the tool manufacturer.

Manufacturing companies advise to carry out the operation so that the bending range fits within 0.3-0.7 millimeters.

Work is carried out using a specialized breeding tool.

Sharpening a saw

Elbor circles with different shapes.

Before sharpening a saw blade on a tree or a tape tool, keep in mind that more than 80% of incidents with damage to devices (including their rupture) occur due to non-compliance with work standards.

Video: How to Make Teeth on a Saw


  1. The need for surgery is determined visually. In this case, attention should be paid to the condition of the teeth and the quality of the walls of the incision (for example, their increased roughness).
  2. Circles for the point of the tape tool are selected based on the degree of hardness of the teeth.
    Corundum discs are required to work with tool steel fixtures.
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This will lead to a significant decrease in sharpening efficiency.

Common mistakes

  1. Burnt sinuses of saw teeth. This occurs due to the application of excessive efforts when working with a grinding wheel. This defect leads to the fact that the teeth are very dull very quickly.
  2. Suboptimal tooth angle and irregular, angular sinus shape.

This sharpening result is possible due to several errors:

  • demolition of an eccentric grinding machine;
  • incorrectly set tilt angle of the machine head.
  • illiterate selected grinding wheel profile.

Conclusion

Before sharpening a saw on a tree correctly, you should learn how to do it. There are several service methods. They depend on the type of saw, its profile, the shape of the cloves.

How to make a divorce on a band saw video

For hard rocks, the pitch should be less.

Despite the obvious advantages of this machine over other devices of a similar purpose, it has an affordable price, which also contributes to its greater recognition in the vastness of Russia.

The machine for distributing band saws "KEDR" has the following technical characteristics:

  • overall dimensions. 28.5×12.1×36 cm;
  • saw blades for divorce. up to 5 cm;
  • step of the divorced saws. 2.2 cm;
  • weighing 5.2 kg.

Recall about simpler devices for divorcing saw-hacksaws. Their use for band saws is associated with low accuracy and high complexity.

How to make a do-it-yourself scam on a band saw

Dirt, stones, sand and foreign materials in the log blunt the saw: the feed rate is reduced, the life of the saw is reduced, and there is a need to sharpen it often.

Saws are sharpened no less than 1.5 m3 of sawn wood. Frequent sharpening allows you to remove microcracks, increasing the life of the band saw.

Regularly check the surface condition of the grinding wheel.
Do not overheat the machined surface during sharpening.

Overheating of the saw during sharpening mainly occurs when the grinding wheel is pressed too hard, or when the wheel is worn, and also when the saw feed speed is too high during sharpening.

As a result of overheating, an extremely hard and brittle layer appears in the body of the saw.

How to make a divorce on a band saw at home

This can be done only with a rigid clamping of the body by a plate under a divorced tooth.

This can be done most simply by dividing the functions of clamping the body of the saw and pressing the pusher onto the tooth. Such machines are sold. However, breeding in turn with two movements is very inconvenient, although in principle it is possible.

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But the main thing is that, although manufacturers have solved the "swing" problem, the machine itself is made very poorly, and besides, without some basic components, which still does not make it possible to raise such a band saw well with such adjustable ones.

The machine, which with a single click sequentially first firmly clamps the saw body with the plate and then presses the tooth with a pusher, was made very well and with all the necessary components, only IRN could make. We were one of the first, about ten years ago, to have got such a pipe wrench from them.

And although representatives of the Wood-Mizer company claim that they sell these adjustable machines, I personally have never met them in my work and only saw them at exhibitions.

Recommendations for preparing the adjustable machine for work

Before a divorce, it is necessary to remove the burrs formed after sharpening with a wooden bar, otherwise the indicator will give incorrect readings. If your indicator measures in inches, it is best to immediately replace it with an indicator measuring in millimeters, since one division of the indicator in inches corresponds to approximately two and a half divisions of the indicator in millimeters. Thus, when the sharpener makes a tolerance of two divisions in inches, this corresponds to five divisions in millimeters, which is very much, and vice versa, a tolerance of two divisions in millimeters corresponds to only half of the division in inches.

Changing the distance between the teeth directly depends on a particular group.

Divorce cutting elements of a band saw

Divorce is the bending of the band saw blades in different directions. This can significantly reduce the friction of the web and prevent it from being clamped.

To ensure free movement of the blade on the wall of the material being sawed, its width should be greater than the thickness of this material.

Divorce can have several varieties. Different manufacturers may have different names.

Most often may be:

  • Standard, which is characterized by the opposite bending of the cutting elements in various directions. Most often it is used for band saws, which are used to saw hard material.
  • Wavy, which belongs to the category of complex structures.

Divorce in this case has a variable meaning.