Owners of planing machines and electric planers periodically face the problem of sharpening cutting edges. A high-quality sharpened tool will provide clean processing wood even at non-ideal angles and speeds. The easiest way is to sharpen knives and knife heads with your own hands using specialized equipment.

Knife sharpening is necessary

sharpening planer knife

Planing knives require timely care because:

blunt surfaces process wood poorly;
when processing soft rocks with dull knives, the surface becomes covered with lint and unevenness;
worn edges crumble;
During planing with blunt edges, the engine and power units are overloaded.

Attempts to sharpen blades with your own hands using diamond stones, as a rule, give short-term results. Due to poor quality of editing, the blades have to be sharpened soon. Therefore, professional carpenters use only mechanical sharpening.

Types and designs of machines

The machines on the market are distinguished by the knife feeding mechanism:

The machine for sharpening planing knives with manual feed consists of:

grounds;
abrasive stone;
carriages for fixing the knife.

During processing, the cutter moves forward with the help of a handle. Transverse movement of the cutter is ensured by a flywheel.

Automatic machines differ in size and range of options. Mechanisms for industrial use are installed on a powerful cast-iron frame. The carriage is equipped with a support. You can set the speed of movement of the blade and the thickness of the metal layer being removed. Industrial machines allow you to simultaneously sharpen several planer blades without changing settings.

Dedicated to the owners of planing, jointing machines and electric planers.

Every owner of planing machines, jointers and electric planers was faced with the need to sharpen knives for their equipment. Having a specialized small machine for sharpening planing knives will not be difficult for you to do this. It would also be a good idea to go to a sharpening workshop where your planing knives can be sharpened quickly and inexpensively.

Is it possible sharpen planer and planer knives at home.

Maybe. And you can sharpen planing knives on a sharpener. Yes, on the grindstone. But for this you will need a modern low-speed sharpener (or rather, even a sharpening machine) with water cooling. The best option is to use Tormek T7. Naturally, such knives are not sharpened by hand. To sharpen them we use a special tool Tormek SVH 320.

For high-quality sharpening of planer knives, a smooth and non-greasy sharpening stone is required. Let's level the Tormek SG 250 sharpening stone using the tool for leveling and dressing the Tormek TT-50 sharpening stone included with the Tormek T7.

After editing, we smooth the sharpening stone using a whetstone for cleaning and leveling the sharpening stone Tormek SP-650.

Having prepared the sharpening stone, we will begin sharpening the planing knives. We remove the universal stop and install the special stop that comes with the Tormek SVH 320 kit.

We screw a screw into it that regulates the angle of inclination of the knife being sharpened relative to the sharpening stone. With this screw we can later set the required sharpening angle.

We take the blade holder included in the SVH 320 kit and install our planing knife into it.

The manufacturer Tormek recommends sharpening blades and knives with a width of at least 13 mm. The length of the knife is not so important, because... It is possible to rearrange the long knife in the holder. However, one can argue with this, because... I have doubts about the convenience and quality of sharpening long knives with rearrangement. It is very important to install the knife correctly in the holder, because... otherwise it will be sharpened skewed. When installing the knife into the holder, rest the back of the knife against the stop and clamp it with the screws of the holder.

To accurately set and control the set sharpening angle, use a marker to paint over the sharpened chamfer of the knife.

Now, based on the nature of the marks of the sharpening stone on the painted blade, we can estimate the angle of inclination and adjust it in the necessary proportions.

We install the holder with the knife on the stop mounted on the Tormek. Using the adjusting screws of the stop, lower the holder with the knife until it touches the sharpening stone.

Use the angle adjustment screw to set the angle of the knife relative to the stone. By manually rotating the sharpening stone, we determine by the nature of the marks on the painted blade whether it is necessary to adjust the angle of inclination of the knife holder. If necessary, we make adjustments.

So, having set required angle Let's proceed directly to sharpening. For fixed removal of metal from the knife being sharpened, there are two sliders on the stop with a scale division of 0.1 mm. It is assumed that the sharpener can adjust the amount of removal in precise proportions. After each feed, be sure to securely fix the stop with two clamping screws so that there is no fluctuation of the stop during sharpening.

Sharpening the knife is carried out by moving the holder with the knife to the right and left relative to the sharpening stone.

It is not permissible for the knife being sharpened to extend beyond the edge of the sharpening stone. It is recommended to stop the holder 12 mm before the edge of the circle. To eliminate errors, stops are provided that can be moved and the required stroke of the holder can be set. We did not use these stops, relying on our experience.

It should be noted that during sharpening of a planing knife, water accumulates and distributes on the knife blade from the sharpening stone, which leads to water draining onto the body sharpening machine and on the floor. And a lot of this water flows down. Therefore, it is necessary to regularly add water to the Tormek water tank. To reduce water spillage on the body, it is recommended to place a 6 mm high pad under the right leg of the machine (under the leather honing wheel).

However, this measure does not completely prevent water from entering the Tormek T7 case. However, Tormek T7 has good protection and he is not afraid of such water baths.

Another problem when sharpening a planer knife was that the SG 250 stone constantly became greasy, which reduced the efficiency of sharpening and increased the sharpening time. I had to clean it regularly with a whetstone to clean and level the SP-650 sharpening stone. Of course, it is of great importance what material the knife is made of. In our case, the knife was sharpened from HSS steel and this stone had to be constantly sharpened. When sharpening knives made of tool steel (softer steel), more intensive removal of chalk occurs and sharpening occurs faster. To sharpen HSS knives, it is recommended to use another stone: Tormek SB 250.

So, after 20 minutes of sharpening, we have an even, smooth, beautiful bevel of the knife with a stable, even burr on the cutting edge.
The knife requires fine-tuning. We polish the planing knife on a Tormek T7 leather wheel using Tormek PA-70 finishing and polishing paste.

First we bring the working plane of the knife, then its chamfer. We ensure that there is no burr left on the cutting edge of the knife. Once the burr is removed, the knife is sharpened and ready to use.
After sharpening, we checked the geometry of the knife. The knife had a strict parallelism between the cutting edge and the back. Even despite the fairly large sharpening angle, the knife we sharpened cut a sheet of paper perfectly.

Let's summarize:
1. To sharpen planer knives there is no need to have complex and expensive machines. It is enough to have a Tormek T7 and a special tool Tormek SVH 320
2. After sharpening on Tormek T7, you get a high-quality sharpened planing knife with unchanged geometry.

Identified deficiencies:
1. During sharpening, water pours abundantly from the knife being sharpened onto the work table and the body of the machine, which causes some discomfort. Even resorting to certain tricks cannot completely get rid of this inconvenience.
2. The Tormek SG 250 sharpening stone gets dirty regularly and requires cleaning and leveling using a Tormek SP-650 whetstone. There is an assumption that if you use Tormek SB 250 stone, this problem will be eliminated.

Homemade machine for sharpening knives with your own hands: diagram, instructions, manufacturing features

Every man in the house will benefit from a convenient machine for sharpening knives with his own hands. After all, the owner is often judged by how sharp this kitchen tool is.

There are many techniques for sharpening knife blades. For example, for a process carried out at home, only a turning block or ready-made devices with an angular gap shape will be sufficient.

To adjust expensive hunters' knives, European manufacturers produce devices in the form of solid bars, the basis of which is a high-strength alloy.

This article will describe how to make a machine for sharpening knives with your own hands.

Why do knives get dull?

What is the reason why a knife becomes dull when cutting? This can be explained by the fact that the cutting edge is negatively affected by abrasive particles that are present in the material being cut. For example, they are present on vegetables and paper. In simple terms, the blade is subject to gradual wear.

The next reason is the inability to hold the blade in the desired position all the time. Any trembling of the hand causes the knife to tilt, which entails a lateral load.

Sharpening technique

The sharpening technique consists of unified, but at the same time quite labor-intensive methods. The main task is to eliminate damage to the blade. It should be noted that for many, such a procedure as sharpening knives provides good location spirit and peace.

The main rule in this process is to maintain a precisely specified constant angle. No force required here. The main thing is that the block and blade meet at a certain angle. This is the basic rule of the sharpening technique.

What needs to be done to maintain a constant angle?

In order for the angle to have a constant indicator, there are two ways. The first is to acquire the sharpening skill. The angle indicator can be controlled using a regular marker. They should paint over the connections and, after several sharpening cycles, see how well the paint is preserved. If it is worn unevenly, then the blade is not processed well.

If the knife being sharpened is decorative, then you should seal the blade with tape so that only the cutting edge remains open. Even if you misdirect your hand, there will be no scratches on the blade.

An important point is that the direction of the blade along the block is perpendicular to the edge at the points of contact. This is actually quite difficult to do. It is acceptable for the angle between the edge and the blade to be less than 90 degrees. But when directed along the cutting edge, this indicator is not suitable.

The abrasive particles of the stone can leave grooves on the blade that will never be sharpened, but will play a positive role when cutting. If the grooves are oriented along the cutting edge, then they will be of no use during cutting. The worst thing is that the cutting edge may break off altogether.

It is important that the bar is long. It should be one and a half or two lengths of the blade. It is allowed for the diamond block to be somewhat shorter, as it grinds faster and better. Its width does not play a significant role. If it is wider, then it is more convenient to work on it and there is less chance of the blade moving beyond the limits of the device. This may damage its side surface or the blade.

Making a machine for sharpening knives with your own hands

There are homemade devices for sharpening knives different designs. All that is required from the manufacturer is availability the required material and tool skills.

The operating principle of such a device as manual machine To sharpen knives with your own hands, you need to hold the knife blade in a vertical position and drive it along a block fixed at the desired angle. This is much easier than placing the sharpening stone horizontally and holding the knife at the desired angle.

In order to make a machine for sharpening knives with your own hands, you need a piece of laminate, a wooden strip, sandpaper and a couple of bots with lambs. Chipboard or plywood can serve as a replacement for laminate.

To make a knife holder, you need to cut off some of the material. To prevent the block from touching the holder when sharpening, you should sand its edge at an angle using sandpaper.

It is necessary to mark and cut off the top of the vertical post, which will serve as a support for the block. The angle chosen is half that at which the knife will be sharpened. For kitchen knives It is recommended to take an angle of 10-15 degrees.

A machine for sharpening knives with your own hands, the drawings of which are prepared in advance, requires the correct calculation of the length of the base of the racks. Please note that the height indicator will be affected by the subsequent installation of the transverse support. After this, all parts are trimmed and the edges are cleaned.

Holes are marked and drilled in the base and plate for pressing the bolts that secure the blade. When marking, the distance of the holes from the edge of the base is maintained. This is necessary for the versatility of the device, since all knives have their own width. The pressure plate is secured with bolts.

Vertical posts are secured with screws. It is also taken into account that the load on the bottom is small. In this case, it is better to resort to using thermal glue. The horizontal crossbar is attached in exactly this way. The sharpening device is almost ready. All that remains is to make the block.

To make it, a strip of the required length is cut. Sandpaper is glued to one edge with the right size abrasive To optimize the result, you can resort to making several bars with different grain sizes. The range P600 - P2000 is considered the best. To protect your hands from cuts, you need to screw the handle on the top side of the rail.

In the end it turns out homemade machine for sharpening knives with your own hands, characterized by high functionality and practicality. When working, the device rests against the edge of the table, which is quite comfortable when using it.

There are also other types of machine for sharpening knives with your own hands. In this case, it is based on an M8 threaded rod. Two large washers and nuts are used, which serve to hold a bar 200 mm long.

Heat shrink tubing covers the threads. A pair of paper clips serve to secure the guide stand at the desired height. This ensures smooth adjustment of the sharpening angle. The base is made of timber, the thickness of which is 40 mm. It is supported by hand.

How to sharpen jointing knives with your own hands

Every owner who has a plane or jointer has probably encountered the problem of sharpening their knives. It is expensive to purchase new ones periodically. Knives can be easily sharpened with your own hands. In this case, specialized machines or sharpening stones are used. If the jointer is used constantly, then it would be better to make a machine for sharpening knives with your own hands.

Do-it-yourself machine for sharpening a jointer knife

To sharpen a jointer knife, special sharpening equipment is used. The machine for sharpening knives with your own hands has a compact size. It can be installed in a garage or on a personal plot.

Many people are interested in how to make a knife sharpening machine with their own hands. To make a device you need to find certain parts. Perhaps similar spare parts are lying around in your barn or garage. They can also be purchased via the Internet.

Sharpening machine jointing knives with your own hands consists of:

The first thing you should do is find the faceplate. This is the most important component of future equipment. She is the one responsible for the sharpening process. The jointer knives are narrow, and the faceplate guarantees complete and safe sharpening. You will have to buy this part new, but the rest can be used even as old ones.

It is better to purchase faceplates of German or American production. The average cost of a part is 25,000 rubles.

The next step is to find a motor whose power should be 1-1.5 kW. There is no need to buy it. Any one will do, even an old washing machine. But everyone probably has a table, a casing and a vacuum cleaner.

Main stages of device manufacturing

When the table is selected, the engine is fixed directly under it. A faceplate is attached to the moving part. The engine must initially be equipped with a button that turns the unit on and off. It should be conveniently located.

For reliable protection, the faceplate is covered with a casing square shape with one corner cut out. It is this area that needs to be sharpened.

A hole of the same diameter as the vacuum cleaner hose is made on the lower surface of the table in the sharpening area. The presence of a vacuum cleaner is not essential, but it is advisable to install it. It removes unnecessary dirt from blade processing.

What do you need to know?

The engine mount under the base of the faceplate is not prerequisite. You can make sure that the parts are connected using a belt. In this case, the design will be more complex.

A do-it-yourself jointer knife sharpening machine is also suitable for saws and axes.

Ice screw sharpening

The sharp knives of the ice drill enable the fisherman to quickly make holes in the ice of reservoirs. However, over time, any cutting tools become dull and require sharpening.

For fishermen, a high-quality ice auger is a great source of pride. Often, true competitions on the speed of drilling ice holes are held on reservoirs. And victory does not always smile on young and strong fishermen who are armed with imported equipment. There are times when experienced fishermen, equipped with simple Soviet-made tools, emerge as winners in the competition. The reason for the high hole drilling speed lies in the good sharpening of the knives and the correct settings of the device. Beginner fishermen, having bought new Swedish devices, do not even have time to blink an eye before their knives become dull. Tiny grains of sand and pebbles in the ice contribute to the formation of chips and gouges on the blade.

Sharpening of devices is carried out in a variety of ways. Many of our ancestors did not even know what a professional was. grinding machine. In most cases, sharpening was carried out using hand-made devices.

Homemade ice drill machine: what will you need to make it?

To make a device such as a machine for sharpening ice drill knives with your own hands, you will need two strips of steel, the thickness of which is 4 mm, the width is 60 mm, and the length is 200 mm. A spring from a car is often used as a strip. But it is very difficult to bend.

Progress

First you need to make the device case. The steel strips are bent in such a way that the chamfers of the knives pressed to the ends of the arc are not only parallel, but also in the same plane.

After making an arc from the same steel strip, a pressure plate is bent, which serves as a clamp for the knives being sharpened

Holes for M12 or M14 bolts are drilled in the body and pressure plate. Having tightened the body and the pressure plate using a bolt and nut, we clamp the knives between them and check the strength of their adherence to the surface of the end of the emery circle.

If the knives are not located at the required angle (the chamfers do not fit exactly to the circle), then the device is modified by bending the body arc to the appropriate level. If the knives are positioned correctly, then the structure is disassembled, and stiffeners are welded to the body arc on both sides.

Sharpening knives is best done on an emery stone that rotates horizontally. In this case, when wetting the knives with water, the latter remains on the blade and stone longer, ensuring their safety. Dip knives in water frequently. This will help prevent the steel from overheating.

Disadvantage of the device

The disadvantages of the device include the impossibility of sharpening knives with different angles cutting chamfer. But each ice drill manufacturer offers its own models. In this case, a universal device is suitable.

Making a universal device for sharpening an ice drill

Design universal purpose allows you to sharpen knives at any angle of the cutting edge. By smoothly changing the angle between the arms of the unit, on which the knives are fastened with screws, you can fix the desired position of the knives in relation to the plane of the grindstone.

To make this device, you need to find a door hinge with minimal play, as well as an M8 or M10 screw with its own nut. Holes are drilled in the canopy arms. Their diameter is 6-7 mm (for attaching knives to them with screws).

A fixing plate with a slot for a fastening screw is made from a steel strip, the thickness of which is 3 mm. The plate and screw are welded to the canopy arms.

It happens that knives are sharpened, the location of the holes does not correspond to the holes in the canopy. In this case, the shoulders are drilled additional holes for knives of non-standard type. In this case, the device has greater versatility.

How are planer knives sharpened?

Devices such as planers and surface planers can often be seen in country houses. Through them, raw lumber is brought to the desired state. The knives of these devices, like any other, become dull. If you use them often, then the best solution would be to sharpen the knives for planer with your own hands. To make sharpening equipment at home you will need various materials: metal, aluminum or wood.

A knife holder can be made from wooden block. By making cuts at 45 degrees using a circular saw, you can sharpen the knives with a band saw. grinder or a large block. If the latter is not available, then sandpaper is attached to a smooth surface made of metal, wood, chipboard or glass.

Knife holders can be made from scrap materials. The optimal solution will be the use of metal corners that have an indicator of 90 degrees. When placing two knives on the sides, the sharpening angle of each will be 45 degrees. Using screws, you can secure the knives with a second corner.

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Every carpenter knows that a well-sharpened tool is a guarantee high-quality processing material. I offer a device for sharpening planing straight knives.

I install the device together with the abrasive wheel on a vertical milling machine. The device consists of lower and upper plates. On the top there is a holder for sharpening knives. The bottom plate is attached to the machine table with clamps through screwed corners. Both plates are connected on one side by hinges.

The holder for planing knives consists of clamps and a 50x50 mm corner, which I cut so as to withstand a sharpening angle of 40 degrees. This makes the cutting edge strong.

To avoid damage to the abrasive tool when touching the part, I lower it to a depth of no more than 10 microns. To lift the top plate, I use a lifting wedge device, consisting of a wedge, thrust plates and a lead screw. When the lead screw handle is rotated left and right, the wedge moves and the top plate rises or falls.

You can sharpen one or more knives by moving the holder left and right along the top plate.

Knife sharpening device

Nikolay Panasik, Volkovysk.

Sharpening jointer knives

The hand jointer has been actively used in carpentry since ancient times and is now widely used. And ever since then Special attention devoted to such an event as sharpening jointer knives. After all, only a well-adjusted tool allows you to obtain a high-quality product.

So, sharpening jointer knives with your own hands begins with removing the knife along with the chipbreaker, which is subsequently unscrewed. After this, the resin and dirt that formed during work are washed off the knife. Gasoline copes well with this task. After cleaning the knife, you can proceed directly to sharpening.

Sharpening jointer knives can be done in many ways. Anyone who does this often and has enough experience sharpens a knife by simply holding it with his hands at the desired angle. For those who have less experience, there are a lot of devices, electrified and manual. Since blade sharpening and straightening machines are expensive, the most commonly used hand tools. Such products are both factory-made and home-made. An extremely simple device for maintaining the sharpening angle unchanged is shown in the photo below.
It is a furniture bolt, about fifteen centimeters long with a semicircular head. This shape of the bolt head reduces friction during sharpening. There are two nuts attached to the bolt threads, one of which is fixed relative to the other. By moving these nuts up or down you can change the sharpening angle within a wide range. In addition to the nuts, the bolt has two wide washers, between which the jointer blade is clamped. The knife is secured using a wing nut. IN assembled form the entire structure is shown below.
The sharpening angle of the jointer knives can be calculated geometrically or measured using a protractor. For planing soft wood, the jointer knives are sharpened at an angle of 25 degrees; for planing hard wood and for soft steel, the jointer knife should be sharpened at an angle of 30 degrees. There are also factory-made devices for sharpening carpentry tools on sale. In addition to jointing knives, such devices can be used to sharpen chisels, turning cutters and other cutting tools. The photo below shows the most common and inexpensive device for sharpening jointer knives with your own hands. With its help, it is easy to adjust the sharpening angle by moving the knife up to increase the angle and down to decrease it.
The set sharpening angle of the tool can be determined using the existing ruler, which is folded down in this photo below.
The knife is secured with two screws. The scale is graduated for the most common sharpening angles - 25,30,35 degrees. Among the disadvantages of such a device, it can be noted that sharpening often occurs unevenly, due to an unevenly clamped blade. The shaft, thanks to which the device moves, is made of plastic and is not very durable.
Sharpening of jointer knives, regardless of the chosen device, is done on sandpaper, which is attached to a piece of tempered glass. By changing the grain of the paper, acceptable sharpness is achieved. Finish sharpening by grinding and polishing the blade chamfer. For sanding, use the finest-grained paper available. Polish the blade on a leather belt, onto which GOI paste is applied. After finishing polishing on the paste, the blade reflects objects like a mirror and has a razor sharpness.

Attention, TODAY only!

Owners of planing machines and electric planers periodically face the problem of sharpening cutting edges. A well-sharpened tool will ensure clean wood processing even at non-ideal angles and speeds. The easiest way is to sharpen knives and knife heads with your own hands using specialized equipment.

Knife sharpening is necessary

sharpening planer knife

Planing knives require timely care because:

blunt surfaces process wood poorly;
when processing soft rocks with dull knives, the surface becomes covered with lint and unevenness;
worn edges crumble;
During planing with blunt edges, the engine and power units are overloaded.

Types and designs of machines

The machines on the market are distinguished by the knife feeding mechanism:

The machine for sharpening planing knives with manual feed consists of:

grounds;
abrasive stone;
carriages for fixing the knife.

During processing, the cutter moves forward with the help of a handle. Transverse movement of the cutter is ensured by a flywheel.

Every carpenter knows that a well-sharpened tool is the key to high-quality processing of the material. I offer a device for sharpening planing straight knives.

I install the device along with the abrasive wheel on a vertical milling machine. The device consists of lower and upper plates. On the top there is a holder for sharpening knives. The bottom plate is attached to the machine table with clamps through screwed corners. Both plates are connected on one side by hinges.

The holder for planing knives consists of clamps and a 50x50 mm corner, which I cut so as to withstand a sharpening angle of 40 degrees. This makes the cutting edge strong.

You can sharpen one or more knives by moving the holder left and right along the top plate.

Knife sharpening device

Nikolay Panasik, Volkovysk.

Knife sharpening device – necessary tool on the farm

There are always cutting, sawing and planing tools in the household. During the work, the sharpness is lost, and the blades have to be restored. You can give knives and planes to a workshop, but this costs money and takes up extra time. Therefore, home craftsmen prefer to sharpen the tool with their own hands.

Important! Only blades with a certain degree of hardening can be sharpened. If the cutting part has a hardness above 55 HRC, it cannot be sharpened with improvised tools.

You can buy a device for sharpening knives or other household utensils at the store. Save time, but spend a considerable amount of money - good sharpening is expensive.

By the way, there are different opinions about what the knife sharpening device is called. Emery, whetstone, whetstone, sharpener, musat...

Can these definitions refer to the same item or different products? We will talk about this and how to make such a device yourself in the article.

Since the advent of cutting objects (weapons, knives, axes), man has been looking for a way to restore the sharpness of the edge. In the Bronze and Copper Ages it was easy.

Homemade knife sharpener made by yourself. The knife cuts paper like a razor! Simple design available for making at home.

Soft metals were adjusted to any stone. With the advent of steel blades, special rocks, usually of volcanic origin, were used for sharpening.

Some of them are still used today: the American "Arkansas" and the Japanese "water stone". This expensive devices, which is why most craftsmen use artificial sandpaper.

A simple whetstone can sharpen both the knife and the cutting edge of the plane. However, the quality will leave much to be desired.

The golden rule of sharpening: Each blade has its own edge angle, and it should not change along its entire length.

This principle lies in the design of all sharpening devices. By following this rule, you can make such a device yourself.

Do-it-yourself knife sharpening device - drawings, varieties

In order for the blade edge to be processed evenly, several conditions are necessary:

Fixation of the blade is both reliable and without excessive load. Metal should not be damaged in a vice
Setting a specific angle for the bar. When moving along the edge of the knife, the angle should not change
Possibility to set different sharpening angles. You can process various instrument, and some types of knives have a stepped structure.

Device for linear sharpening with a whetstone

For production you will need:

Plywood or laminated chipboard
Steel stud with thread along the entire length, diameter 6-8 mm
A block of textolite or ebonite. Can be replaced with hard wood - beech, oak
Aluminum plate 3-5 mm thick
Fasteners - bolts, nuts (preferably wing nuts)
Neodymium magnet from an old computer HDD.

We assemble a frame from plywood, resting on legs at an angle of 15°-20°. We screw a 30-40 cm long pin into the part below. For strength, you can secure the thread with glue or sealant.

We fix an aluminum plate in the middle of the working surface. First we make a groove in it, along the diameter of the fixing bolt. Why aluminum? To avoid damaging the steel blade of the knife.

We make a lever to secure the emery. It is assembled from the remaining part of the hairpin. We cut out the bar holders from two textolite bars. On one side the stop is secured with a nut.

It is more convenient to make a spring-loaded block on the side of the handle - for quickly changing the sandpaper.

We use homemade bars as the main element - we glue sandpaper with different grain sizes onto an aluminum plate. Such devices are easily fixed in the lever.

A special feature of the design is a hinge with two degrees of freedom. It is assembled from two identical PCB bars. One is screwed onto a vertical pin, and serves both as a horizontal rotary axis and as an adjuster for the height of the lever support (this is how the sharpening angle is set).

The second block, with a horizontal hole for the lever, is screwed to the first. This ensures free movement of the lever vertically.

The knife can be clamped using a plate, or mounted on a neodymium magnet. When removing the first layer with coarse sandpaper, the blade should be firmly fixed.

For finishing, you can install the blade on a magnet and sharpen it with little effort. The horseshoe of the magnet should be recessed flush with the tabletop and glued epoxy glue.

Homemade device ready for sharpening knives. We set the required angle of attack and sharpen the edge with smooth movements along the blade.

The same principle is used in a device for sharpening knives on an electric sharpener.

Electric emery not only speeds up work, but also allows you to obtain a high-quality concave blade edge profile. This is the so-called dolovaya sharpening. It will not be possible to obtain such a shape on a linear block, so these two devices do not replace, but complement each other.

Important! If, when working with a manual sharpening device, you completely control the intensity of the process, then the high speed of rotation of the emery wheel can damage the knife.

Due to friction, the metal on the tip heats up, and hardening occurs. The steel loses its hardness and wears off with ragged edges. Another problem is that a “released” knife quickly loses its sharpness. Therefore, you should work with an electric sharpener carefully. Bring the blade to a short time, and take breaks to cool down.

Do-it-yourself knife sharpener - video with explanations and manufacturing example

In this mode it is difficult to maintain a constant angle, so fixing the knife is mandatory.

The design is quite simple - along the axis of rotation of the emery there is a guide along which the carriage with the knife moves. The angle is maintained mechanically, and the force is determined by the operator.

The device is easy to make with your own hands - and you don’t have to do it precision work for processing metal parts. The guide is literally made from the base material.

On the workbench, next to the sharpener, guides are attached, with the help of which you can change the distance from the knife stop to the rotating circle. This distance determines the sharpening angle. The vertical rod must have free movement up and down with a strong position fixation.

The knife is held horizontally, pressing against the stop. The force of contact with the emery is adjusted directly during sharpening. Processing occurs symmetrically, you simply change the side of the knife and sharpen at the same angle.

This method is only suitable for processing classic knives. Kitchen, hunting, tourist. The cutting planes of other tools require a different approach.

Design for sharpening knives, say a jointer:

A specialized sandpaper with an end working surface is used. The guide for the carriage is located at the bottom, away from the axis of rotation.

It is in this part of the disk that the abrasive works most effectively. The guide with the cutting element is moved manually, the pressure is provided by the knife’s own weight.

Drawings of all structural elements are presented in the illustration.

This machine was used almost 100 years ago, and the technology has not changed since then. Simplicity of execution allows you to repeat the device in a home workshop. Any materials - metal, plastic, wood.

Instead of cutting elements of a jointer, you can sharpen ice ax knives for winter fishing. Only the angle is shallower. The scissor attachment works in the same way. Design (as well as emery wheel) is significantly smaller in size.

You can also use an electric sander and a locking carriage to sharpen chisels and plane knives. However, these tools are compact and can be handled by a mechanical tool.

There are two equivalent methods - along the edge and across. The quality of processing is approximately the same, so it is impossible to give preference to a specific device.
The factory product involves transverse editing of the blade.

By analogy, we make a carriage from thick plywood. We use any rollers as guides, preferably more than two. By moving the machine along the sandpaper, you can shape the edge of the chisel perfect shape.

If you don't need serious sharpening, a simpler device will do just fine for minor adjustments. Attach a block with the required angle of inclination to the chisels. Place sandpaper and a piece of glass nearby. Apply soap solution to the glass.

The effectiveness of the device will pleasantly surprise you.

And for transverse sharpening, you can make an equally simple device. The guide is also a support. The blade is mounted vertically on the moving part. The only drawback is that the angle is fixed and is determined during manufacture.

True, unlike a knife, deviation from the ideal is not so critical.

The same device is suitable for sharpening plane knives. Just because of the width of the blade, the process is quite labor-intensive. Therefore, you can use an electric sander with an end working surface.

The emphasis is made of a wooden block. All you need to do is change the angle. The clamp is provided by the operator, and semicircular sharpening can be performed - carpenters will appreciate this option.

Of course, the same device is convenient for tidying up the edge of a chisel. Considering high performance– you will restore the instrument even after serious nicks.

Homemade device for sharpening knives and tools from a sharpening machine

When you again manually rub a knife on an old whetstone, remember this article and create a homemade sharpening installation for your home workshop.

Homemade machine for sharpening knives with your own hands: diagram, instructions, manufacturing features

Every man in the house will benefit from a convenient machine for sharpening knives with his own hands. After all, the owner is often judged by how sharp this kitchen tool is.

There are many techniques for sharpening knife blades. For example, for a process carried out at home, only a turning block or ready-made devices with an angular gap shape will be sufficient.

To adjust expensive hunters' knives, European manufacturers produce devices in the form of solid bars, the basis of which is a high-strength alloy.

This article will describe how to make a machine for sharpening knives with your own hands.

Why do knives get dull?

The next reason is the inability to hold the blade in the desired position all the time. Any trembling of the hand causes the knife to tilt, which entails a lateral load.

Sharpening technique

What needs to be done to maintain a constant angle?

Making a machine for sharpening knives with your own hands

Homemade knife sharpening devices come in different designs. All that is required from the manufacturer is the availability of the necessary material and skills in working with tools.

The principle of operation of such a device as a manual machine for sharpening knives with your own hands is to hold the knife blade in a vertical position and drive it along a block fixed at the desired angle. This is much easier than placing the sharpening stone horizontally and holding the knife at the desired angle.

In order to make a machine for sharpening knives with your own hands, you need a piece of laminate, a wooden strip, sandpaper and a pair of bots with wings. Chipboard or plywood can serve as a replacement for laminate.

To make a knife holder, you need to cut off some of the material. To prevent the block from touching the holder when sharpening, you should sand its edge at an angle using sandpaper.

It is necessary to mark and cut off the top of the vertical post, which will serve as a support for the block. The angle chosen is half that at which the knife will be sharpened. For kitchen knives, it is recommended to take an angle of 10-15 degrees.

To make it, a strip of the required length is cut. Sandpaper with the required abrasive size is glued to one edge. To optimize the result, you can resort to making several bars with different grain sizes. The range P600 - P2000 is considered the best. To protect your hands from cuts, you need to screw the handle on the top side of the rail.

The result is a homemade machine for sharpening knives with your own hands, characterized by high functionality and practicality. When working, the device rests against the edge of the table, which is quite comfortable when using it.

How to sharpen jointing knives with your own hands

Do-it-yourself machine for sharpening a jointer knife

To sharpen a jointer knife, special sharpening equipment is used. The machine for sharpening knives with your own hands has a compact size. It can be installed in a garage or on a personal plot.

A do-it-yourself machine for sharpening jointing knives consists of:

It is better to purchase faceplates of German or American production. The average cost of a part is 25,000 rubles.

Main stages of device manufacturing

For reliable protection, the faceplate is covered with a square-shaped casing with one corner cut out. It is this area that needs to be sharpened.

What do you need to know?

Mounting the engine under the base of the faceplate is not a requirement. You can make sure that the parts are connected using a belt. In this case, the design will be more complex.

A do-it-yourself jointer knife sharpening machine is also suitable for saws and axes.

Ice screw sharpening

The sharp knives of the ice drill enable the fisherman to quickly make holes in the ice of reservoirs. However, over time, any cutting tools become dull and require sharpening.

Sharpening of devices is carried out in a variety of ways. Many of our ancestors did not even know what a professional grinding machine was. In most cases, sharpening was carried out using hand-made devices.

Homemade ice drill machine: what will you need to make it?

Progress

First you need to make the device case. The steel strips are bent in such a way that the chamfers of the knives pressed to the ends of the arc are not only parallel, but also in the same plane.

After making an arc from the same steel strip, a pressure plate is bent, which serves as a clamp for the knives being sharpened

Disadvantage of the device

The disadvantages of the device include the impossibility of sharpening knives with different cutting chamfer angles. But each ice drill manufacturer offers its own models. In this case, a universal device is suitable.

Making a universal device for sharpening an ice drill

The universal design allows you to sharpen knives at any cutting edge angle. By smoothly changing the angle between the arms of the unit, on which the knives are fastened with screws, you can fix the desired position of the knives in relation to the plane of the grindstone.

A fixing plate with a slot for a fastening screw is made from a steel strip, the thickness of which is 3 mm. The plate and screw are welded to the canopy arms.

It happens that knives are sharpened, the location of the holes does not correspond to the holes in the canopy. In this case, additional holes are drilled in the arms for non-standard knives. In this case, the device has greater versatility.

How are planer knives sharpened?

Devices such as planers and surface planers can often be seen in country houses. Through them, raw lumber is brought to the desired state. The knives of these devices, like any other, become dull. If you use them often, then the best solution would be to sharpen your planer knives yourself. To make sharpening equipment at home, you will need various materials: metal, aluminum or wood.

A knife holder can be made from a wooden block. By making 45-degree cuts with a circular saw, you can sharpen the knives with a belt sander or a large whetstone. If the latter is not available, then sandpaper is attached to a smooth surface made of metal, wood, chipboard or glass.

Knife holders can be made from scrap materials. The optimal solution would be to use metal corners that have an angle of 90 degrees. When placing two knives on the sides, the sharpening angle of each will be 45 degrees. Using screws, you can secure the knives with a second corner.

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Tool for sharpening jointer knives

Good afternoon.
I decided to revive the dull knives for the R-102 planer, and at the same time think about the future sharpening of knives for the planer-thicknesser Caliber SSR-1280.
I don’t have a sharpener for this purpose, and I’m too lazy to resharpen it.
I scoured the Internet for foreign sites and found such a useful device.

The toad didn’t give 37, so I decided to build a similar device from scrap materials. I am attaching the drawing. Luckily for me, there were pieces of board left over from the old projects, sawn lengthwise at 45 degrees (I didn’t have to unpack the saw). I bought the following from the nearest hardware store:
bolt M6x50 - 3 pcs.
bolt M6x100 - 1 pc.
wing nut M6 - 5 pcs.
nut - barrel (coupling) M6 - 1 pc.
sandpaper 4 sheets (100, 180, 2x800 grits)

The total came out to 49 rubles.

Sharpening the plane knives was complicated by the fact that the original sharpening was made with a noticeable concavity. Therefore, I had to sharpen quite a long time and tediously on coarse sandpaper until it was level. To speed up the process, I decided to sacrifice the sharpening angle and make it blunter, about 45 degrees, which is just right for pine.
By the way, the concavity turned out to be different on different sides of the knife. The other side had to be sharpened less, I immediately went through 30-40 razors on the 800th piece of sandpaper - and it was done.
Yes! I didn’t have any suitable glass, but I had an old Soviet tabletop from kitchen table with a plastic coating - quite smooth for the intended villainy.

In general, such a device will be useful to you for sharpening slightly dull knives (3-4 times is probably possible), and then you will still need to send it to a professional sharpener (if in this regard your hands, like mine, do not quite grow from there).

Registration: 10.29.2005 Moscow Messages: 9197

09/08/2009 at 13:50

Goryn wrote.
I decided to revive the dull knives for the R-102 plane

This is included with the Makita plane.

Registration: 03/18/2009 St. Petersburg Messages: 34

05.10.2009 at 12:21

So there in Aglitsky, but in Russian you can, I would buy this.

Registration: 11/19/2007 Kogalym Posts: 17

10/07/2009 at 20:49

How to sharpen the teeth of a carbide-tipped circular saw?

Registration: 01/20/2010 Roslavl Posts: 27

01/20/2010 at 22:20

In fact, an industrial (electric) machine for sharpening knives is quite easy to repeat and seems to me more justified and accurate in operation. Represents a adjustable table with the knife mounted on the edge of the table, an electric motor with a sharpening stone moves parallel to the table along guides (the position of the working surface of the stone is adjusted in height), the accuracy of work and speed are amazing.

Dedicated to the owners of planing, jointing machines and electric planers.....

Every owner of planing machines, jointers and electric planers was faced with the need to sharpen knives for their equipment. Having a specialized small machine for sharpening planing knives will not be difficult for you to do this. It would also be a good idea to contact a place where your planing knives can be sharpened quickly and inexpensively.

Is it possible sharpen planer and planer knives at home???

Maybe. And you can sharpen planing knives on a sharpener. Yes, on the grindstone. But for this you will need a modern low-speed sharpener (or rather, even a sharpening machine) with water cooling. The best option is to use . Naturally, such knives are not sharpened by hand. To sharpen them we use a special device.

For high-quality sharpening of planer knives, a smooth and non-greasy sharpening stone is required. Let's align the sharpening stone using the tool for leveling and straightening the sharpening stone included with the Tormek T7.

After dressing, smooth the sharpening stone using a whetstone to clean and level the sharpening stone.

We install the holder with the knife on the stop mounted on the Tormek. Using the adjusting screws of the stop, lower the holder with the knife until it touches the sharpening stone.

Use the angle adjustment screw to set the angle of the knife relative to the stone. By manually rotating the sharpening stone, we determine by the nature of the marks on the painted blade whether it is necessary to adjust the angle of inclination of the knife holder. If necessary, we make adjustments.

So, having set the required angle, we proceed directly to sharpening. For fixed removal of metal from the knife being sharpened, there are two sliders on the stop with a scale division of 0.1 mm. It is assumed that the sharpener can adjust the amount of removal in precise proportions. After each feed, be sure to securely fix the stop with two clamping screws so that there is no fluctuation of the stop during sharpening.

It should be noted that during sharpening of a planer knife, water accumulates and distributes on the knife blade from the sharpening stone, which leads to water draining onto the body of the sharpening machine and onto the floor. And a lot of this water flows down. Therefore, it is necessary to regularly add water to the Tormek water tank. To reduce water spillage on the body, it is recommended to place a 6 mm high pad under the right leg of the machine (under the leather honing wheel).

However, this measure does not completely prevent water from entering the Tormek T7 case. However, Tormek T7 has good protection and is not afraid of such water baths.

Another problem when sharpening a planer knife was that the SG 250 stone constantly became greasy, which reduced the efficiency of sharpening and increased the sharpening time. I had to clean it regularly with a whetstone to clean and level the SP-650 sharpening stone. Of course, it is of great importance what material the knife is made of. In our case, the knife was sharpened from HSS steel and this stone had to be constantly sharpened. When sharpening knives made of tool steel (softer steel), more intensive removal of chalk occurs and sharpening occurs faster. It is recommended to use a different stone to sharpen HSS knives.

So, after 20 minutes of sharpening, we have an even, smooth, beautiful bevel of the knife with a stable, even burr on the cutting edge.
The knife requires fine-tuning. We polish the planing knife on a Tormek T7 leather wheel using finishing and polishing paste.

First we bring the working plane of the knife, then its chamfer. We ensure that there is no burr left on the cutting edge of the knife. Once the burr is removed, the knife is sharpened and ready to use.
After sharpening, we checked the geometry of the knife. The knife had a strict parallelism between the cutting edge and the back. Even despite the fairly large sharpening angle, the knife we sharpened cut a sheet of paper perfectly.

The jointer and jointer have long been one of the most popular carpentry tools, and they have not lost their relevance today. Many specialized specialists are interested in the question of how to sharpen jointer knives, since a fully prepared tool for work allows you to achieve best quality work. The first thing to do is to remove the knife and chipbreaker, which must be unscrewed before work. Used tools need to be cleaned of contaminants, such as tar, which is best removed with gasoline.

To sharpen planing and jointing type knives, it is better to use specialized devices. The procedure is also carried out manually; in addition, the device for sharpening jointer knives can be assembled independently. When working, you need to follow a number of rules, you can use several technologies. Regardless of which sharpening option you use, you need to follow the instructions as closely as possible. Otherwise, you can achieve poor-quality performance of the tool, the functions of which you will not be able to use 100%. If you are thinking about how to sharpen jointer knives at home, then use regular sharpening stones, although ideal option There will be a choice of a professional sharpening machine with a cooling function.

Preparing to sharpen knives

Sharpening jointer knives can be done more efficiently if you choose a device with low speed and High Quality. If you want to use grindstone, then it must be initially leveled. After straightening the device, the stone must be smoothed with a block.

Now set suitable angle tilt, this is done by rotating the screw securing the blade. Next you need to use the holder included in standard equipment machine, the jointing knife is fixed there. Work should begin with knives no wider than 13 mm. The length is not important, since the holder holds the tool in a comfortable position.

To secure the knife well, hold it in the selected position and tighten the screws tightly.

To control the sharpening angle of the jointer knives, a marker is used to mark the chamfer of the knife. To understand the accuracy of the adjustment, you can turn the stone manually.

Tool sharpening

Sharpening jointer blades is a simple process, you just need to move the holder from side to side relative to the whetstone. Try not to let the blade go beyond the edges of the stone. Fix the holder 12 mm from the end of the circle. When carrying out work, it is necessary to establish a supply of water cooling. Be prepared to regularly replenish the fluid in the tank and not allow the tank to dry out. To ensure safe work, you need to ensure that moisture does not flow onto the floor under your feet.

Sharpening jointing knives is a rather lengthy procedure. Periodically check the cleanliness of the whetstone, as it can quickly become dirty. To clean it, you need to use a special bar as soon as contamination is detected. By the way, the choice of stone largely depends on the type of instrument. The jointer may include knives made of various types hardness, so choose your sharpening stone carefully.

Knife sharpening is necessary

sharpening planer knife

Planing knives require timely care because:

blunt surfaces process wood poorly;
when processing soft rocks with dull knives, the surface becomes covered with lint and unevenness;
worn edges crumble;
During planing with blunt edges, the engine and power units are overloaded.

Types and designs of machines

The machines on the market are distinguished by the knife feeding mechanism:

The machine for sharpening planing knives with manual feed consists of:

grounds;
abrasive stone;
carriages for fixing the knife.

During processing, the cutter moves forward with the help of a handle. Transverse movement of the cutter is ensured by a flywheel.

	Corvette K-470	WTG-163	GA-630	GA-850	ZX-1000
Maximum length of knives, mm	630	630	640	850	1000
Abrasive disc diameter, mm	100	150	125	125
Sharpening angle, degrees	35…55	up to 30	35…45	35…45	Up to 30
Engine power, W	550	550	850	850	1500
Dimensions, cm	90 x 48 x 42	100 x 60 x 65	100 x 54 x 120	120 x 54 x 120	190 x 56 x 150
Weight, kg	75	60	112	125	250
Add. intelligence	Equipped with an asynchronous motor, sharpening possible wet method	Processes cutters, circular saws	Wet sharpening possible	Can sharpen up to 4 blades, wet method	A wet method is provided, a cup-type grinding disc is controlled via a remote control

Table 1. Characteristics of some models of machines for sharpening planing knives

Compact automatic machines for home and small workshops are designed to process one cutter in one go. They also provide adjustable speed and automatic feeding tool.

Before starting work on any sharpening equipment, you should make sure that the frame is securely fastened. Machine vibration impairs the quality of sharpening and can lead to injury to the operator.

Basic rules for using manual feed equipment

machine for sharpening planing knives Corvette-470

Such machines are used for one-time work and for sharpening small batches of blades with your own hands, since the processing process is quite lengthy.

Before starting work, you need to make sure that the grinding surface is clean, without stains or streaks.
The movement of the carriage should be smooth, without jerks or jolts. It is forbidden to stop it when the cutter approaches the sharpener.
The faster the carriage moves, the lower the quality of sharpening. The optimal speed of movement is 5 - 6 m/minute.
For correct sharpening The amplitude of movement of the carriage is important. During a pass in each direction, it should move 10 - 13 cm further than the end of the knife. This ensures optimal contact between the cutter and the sharpener, which must be broken before moving in the opposite direction.

Basic rules for working on automatic machines

Planing knives can be sharpened dry or wet. In the second case, the blade is constantly washed with a stream of water. Wet method more gentle on the blade and more effective;
Before processing begins, it is necessary to set the following parameters: sharpening angle, amplitude of carriage movement. The amplitude should be 15 cm greater than the length of the knife;
The blades are carefully fixed in the mobile carriage with your own hands.

Homemade machine for sharpening planing knives

machine for sharpening planing knives Kraton-630

The design, made at home with your own hands, allows you to quickly and efficiently sharpen knives to one set angle. This will change the factory angle, so all blades will need to be re-sharpened. The quality of planing will not deteriorate, but may even improve.

To make a device for sharpening straight blades of planing, jointing and thicknessing machines with your own hands, you need:

metal corner №50;
pipe round section with a diameter of no more than 50 mm;
electric motor from washing machine;
powerful spring;
bolt with nut;
plastic handle (knob);
Bulgarian;
welding machine.

Making a machine with your own hands.

Cut a corner about 50 cm long.
We bend two pieces of pipe so that we get a stable stand for the corner, and weld the legs. The corner should be positioned vertically towards the master.
At the left end, behind the corner, we attach an electric motor. It is placed on two points: a rigid axis and a powerful spring; The spring is tightened and released using the adjusting screw, moving the motor closer or further from the angle guide.
We put an abrasive wheel on the electric motor shaft.
The engine is started by a switch located on the frame in convenient location.
We feed the tool using homemade vise from a piece of pipe 25 cm long, a pressure plate, a bolt with a nut and a knob. We clamp the knife in a vice and move it along the guide, holding it by the knob.

Video review of this machine model:

stanokgid.ru

Articles

Dedicated to the owners of planing, jointing machines and electric planers.....

Is it possible to sharpen planer and jointer knives at home???

Maybe. And you can sharpen planing knives on a sharpener. Yes, on the grindstone. But for this you will need a modern low-speed sharpener (or rather, even a sharpening machine) with water cooling. The best option is to use Tormek T7. Naturally, such knives are not sharpened by hand. To sharpen them we use a special tool Tormek SVH 320.

For high-quality sharpening of planer knives, a smooth and non-greasy sharpening stone is required. Let's level the Tormek SG 250 sharpening stone using the tool for leveling and dressing the Tormek TT-50 sharpening stone included with the Tormek T7.

After dressing, we smooth the sharpening stone using a whetstone for cleaning and leveling the sharpening stone Tormek SP-650. Having prepared the sharpening stone, we will begin sharpening the planing knives. We remove the universal stop and install the special stop that comes with the Tormek SVH 320 kit.

We screw a screw into it that regulates the angle of inclination of the knife being sharpened relative to the sharpening stone. With this screw we can later set the required sharpening angle.

We take the blade holder included in the SVH 320 kit and install our planing knife into it.

The manufacturer Tormek recommends sharpening blades and knives with a width of at least 13 mm. The length of the knife is not so important, because... It is possible to rearrange the long knife in the holder. However, one can argue with this, because... I have doubts about the convenience and quality of sharpening long knives with rearrangement. It is very important to install the knife correctly in the holder, because... otherwise it will be sharpened skewed. When installing the knife into the holder, rest the back of the knife against the stop and clamp it with the screws of the holder. To accurately set and control the set sharpening angle, use a marker to paint over the sharpened chamfer of the knife.

Now, based on the nature of the marks of the sharpening stone on the painted blade, we can estimate the angle of inclination and adjust it in the necessary proportions. We install the holder with the knife on the stop mounted on the Tormek. Using the adjusting screws of the stop, lower the holder with the knife until it touches the sharpening stone.

Use the angle adjustment screw to set the angle of the knife relative to the stone. By manually rotating the sharpening stone, we determine by the nature of the marks on the painted blade whether it is necessary to adjust the angle of inclination of the knife holder. If necessary, we make adjustments.

So, having set the required angle, we proceed directly to sharpening. For fixed removal of metal from the knife being sharpened, there are two sliders on the stop with a scale division of 0.1 mm. It is assumed that the sharpener can adjust the amount of removal in precise proportions. After each feed, be sure to securely fix the stop with two clamping screws so that there is no fluctuation of the stop during sharpening. Sharpening the knife is carried out by moving the holder with the knife to the right and left relative to the sharpening stone.

It is not permissible for the knife being sharpened to extend beyond the edge of the sharpening stone. It is recommended to stop the holder 12 mm before the edge of the circle. To eliminate errors, stops are provided that can be moved and the required stroke of the holder can be set. We did not use these stops, relying on our experience. It should be noted that during sharpening of a planer knife, water accumulates and distributes on the knife blade from the sharpening stone, which leads to water draining onto the body of the sharpening machine and onto the floor. And a lot of this water flows down. Therefore, it is necessary to regularly add water to the Tormek water tank. To reduce water spillage on the body, it is recommended to place a 6 mm high pad under the right leg of the machine (under the leather honing wheel).

However, this measure does not completely prevent water from entering the Tormek T7 case. However, Tormek T7 has good protection and is not afraid of such water baths.

So, after 20 minutes of sharpening, we have an even, smooth, beautiful bevel of the knife with a stable, even burr on the cutting edge.

The knife requires fine-tuning. We polish the planing knife on a Tormek T7 leather wheel using Tormek PA-70 finishing and polishing paste.

First we bring the working plane of the knife, then its chamfer. We ensure that there is no burr left on the cutting edge of the knife. Once the burr is removed, the knife is sharpened and ready to use. After sharpening, we checked the geometry of the knife. The knife had a strict parallelism between the cutting edge and the back. Even despite the fairly large sharpening angle, the knife we sharpened cut a sheet of paper perfectly.

Let's summarize:

1. To sharpen planing knives you do not need to have complex and expensive machines. It is enough to have a Tormek T7 and a special device Tormek SVH 320 2. After sharpening on a Tormek T7, you get a high-quality sharpened planing knife with unchanged geometry.

Identified deficiencies:

1. During sharpening, water pours abundantly from the knife being sharpened onto the work table and the body of the machine, which causes some discomfort. Even resorting to certain tricks cannot completely get rid of this inconvenience.

2. The Tormek SG 250 sharpening stone gets dirty regularly and requires cleaning and leveling using a Tormek SP-650 whetstone. There is an assumption that if you use Tormek SB 250 stone, this problem will be eliminated.

www.grinding.ru

Description of sharpening knives for woodworking machines

Sharpening knives for woodworking machines is a mandatory process that can be done with your own hands using special tools. Sharpening is the restoration of the previous cutting capabilities of hacksaws, scissor shafts, planers, jointers and other devices for wood processing.

1 General information
2 Preparatory activities

Photos of sharpened knives

To sharpen the planer's blade shaft, jointer, you will need the appropriate device;
The sharpening work is done by hand;
Craftsmen learned to assemble sharpening devices;
When restoring hacksaws, jointing devices, sharpening knife shafts, be sure to follow several recommendations and strictly follow the technology;
If the teeth of hacksaws and knife shafts are sharpened incorrectly, the quality of wood processing with tools will significantly deteriorate;
Sharpening stones are a good alternative for a sharpening machine. But if you have the opportunity to assemble it yourself or purchase a sharpening machine, be sure to take advantage of it.

Diagram of the device for sharpening knives of woodworking machines

If you need to sharpen knives for a woodworking machine, you should start with the required preparation steps. It is not so important what parameters the knife shaft or cutting sheets of hacksaws have 13 mm, 20 mm or all 200 mm, they will definitely need sharpening.

Some people prefer to send dull shafts to special workshops, where they can easily restore the previous sharpness of a 200 mm knife or small cutter lathe. But both ordering sharpening and buying new knife shafts is a financially expensive matter.

Preparation for sharpening begins with familiarization with available surface restoration products. cutting tools and some recommendations.

To keep jointers, planers, and hacksaws in working order, assemble or purchase an appropriate sharpening device.
Simplest, a budget option- This is a whetstone. But the quality of processing directly depends on your skills in working with stone. If there are none, it is extremely difficult to achieve the required level of sharpening. Plus, stones are not able to cope with all types of cutting tools that are equipped with modern woodworking machines.
Choose a machine that can sharpen at low speeds, as this has a positive effect on the quality of the finish.
The recommended equipment for the sharpening machine is a water cooling system.
Carefully study the equipment of household woodworking machines. Often there is already a sharpening stone, which is optimally suited for processing the knives used.
If the stone is not included in the package, it will have to be purchased separately, leveled with a special device, and smoothed. This is the only way you can sharpen the knife shafts of jointing machines efficiently.
The machines have a function for setting the angle of inclination, adjustable with a special screw. By turning the screw and changing the position of the sharpening device, you can correctly fix the tool relative to the stone.
Next preparatory stage- this is a holder in which the knife shaft is installed.
If you are a beginner, it is not recommended to start your first job with 200 mm knives. Start literally with 13-15 mm, and gradually you will learn to process 200 mm and even 2 mm. To do this you need to accumulate certain experience.
The length of the knife is not a fundamental parameter, since the knife in the holder can move to the distance you require.
Make sure to hold the shaft firmly in place. Otherwise, you will get a significant distortion, due to which the quality of woodworking will suffer.
Study the operating manual of the purchased sharpening machine in detail. If this is a DIY tool, you will have to rely on drawings and available information on the Internet about a specific sharpening device project.

Sharpening

In order for the sharpening of knives for a woodworking machine to give a positive result, you can resume working with the equipment at the same level of quality, you need to adhere to a few sufficient simple rules.

The sharpener holder can move left and right relative to the stone to sharpen knives.
Do not allow the blade to end up over the edge.
Immediately fix the holder at a distance of 12 mm from the edge of the grinding wheel.
When sharpening knives of 200 mm or smaller variations, make sure that the water cooling function is activated on the machine.
The cooling system requires constant monitoring. The tank usually has a small volume, so water needs to be added periodically. If it runs out and the sharpening process continues without cooling, you risk ruining a rather expensive knife.
As the knives are processed, water from the cooling system may accumulate on the floor. Since sharpening machines are electrical accessories, provide the possibility of draining water from your feet, work in rubber shoes. In any case, standing in a puddle of water while working with an electric machine is always dangerous. Follow safety regulations.
Keep the whetstone clean. It gets dirty quite quickly with active use.
Are being cleared grinding wheels machines using special device. The machines should be equipped with this cleaning bar, but if it is not included in the set, then you will have to purchase it separately.
Each subsequent sharpening, according to the operating rules, is performed only on the condition that the stone is cleaned. Therefore, after each sharpening, arm yourself with a cleaning bar and treat the machine with it.
On average, sharpening using a special machine takes about 10-20 minutes. It all depends on the type and size of the tool, which became dull as a result of woodworking operations.
After sharpening the tools of woodworking machines, do not rush to return them to their place and continue working. After processing on the machine, the tool needs to be fine-tuned.
Finishing consists of applying to the surface cutting element special paste. Proceed according to the instructions provided by the manufacturer of the finishing paste on the packaging. Different pastes may differ slightly in application methods.

If you did everything correctly, then the knife should be perfectly smooth, sharply sharpened, and free of any irregularities or burrs. Don't worry when the result doesn't meet your expectations the first time. This takes some time and a little experience. That’s why you should start with simple and inexpensive knives that you don’t mind ruining.

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What you need to know about sharpening jointer knives

The jointer and jointer have long been one of the most popular carpentry tools, and they have not lost their relevance today. Many specialized specialists are interested in the question of how to sharpen jointer knives, since a fully prepared tool for work allows you to achieve better quality of work. The first thing to do is to remove the knife and chipbreaker, which must be unscrewed before work. Used tools need to be cleaned of contaminants, such as tar, which is best removed with gasoline.

To sharpen planing and jointing type knives, it is better to use specialized devices. The procedure is also carried out manually; in addition, the device for sharpening jointer knives can be assembled independently. When working, you need to follow a number of rules, you can use several technologies. Regardless of which sharpening option you use, you need to follow the instructions as closely as possible. Otherwise, you can achieve poor-quality work of the tool, the functions of which the carpenter will not be able to use 100%. If you are thinking about how to sharpen jointer knives at home, then use regular sharpening stones, although choosing a professional sharpening machine with a cooling function is ideal.

Preparing to sharpen knives

Sharpening jointer knives can be done more efficiently if you choose a device with low speeds and high quality. If you want to use a whetstone, you must first level it. After straightening the device, the stone must be smoothed with a block.

Now set the appropriate angle of inclination, this is done by rotating the screw securing the blade. Next, you need to use the holder that is included in the standard equipment of the machine, where the jointing knife is fixed. Work should begin with knives no wider than 13 mm. The length is not important, since the holder holds the tool in a comfortable position.

To secure the knife well, hold it in the selected position and tighten the screws tightly.

To control the sharpening angle of the jointer knives, a marker is used to mark the chamfer of the knife. To understand the accuracy of the adjustment, you can turn the stone manually.

Tool sharpening

Sharpening jointing knives is a rather lengthy procedure. Periodically check the cleanliness of the whetstone, as it can quickly become dirty. To clean it, you need to use a special bar as soon as contamination is detected. By the way, the choice of stone largely depends on the type of instrument. A planer can include knives of varying hardness types, so choose your whetstone carefully.

Typically, jointer knives are sharpened for 20 minutes, after which finishing needs to be done. This procedure is carried out using a special paste. Polishing is carried out so that the blade does not have the slightest roughness or burrs, otherwise the work with such a knife will not be complete. Check the effectiveness of sharpening by cutting a piece of paper with it. If the cut is made carefully, then the knife is completely ready for use.

Other materials for sharpening tools: * Sharpening a hacksaw for wood. * Sharpening a chisel with your own hands.

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