How to make a holder for an angle grinder • CIMFLOK.COM

Materials and tools

The first question that a home craftsman faces when designing a stand for an angle grinder is what to make it from. The answer to this question is elementary: we will do what we have. If you have water pipes at hand, they will come in handy for making hinges and guides. If there is a metal corner, we will assemble a frame from it.

The main and most complex part of the pendulum saw is the hinge assembly. It carries the greatest loads, while the pendulum arm should not be able to freely deflect to the left or right. Consider the design of this node with the greatest care. Roller bearings are ideal. Pick a pair of suitable sizes. and already “around them” build the rest of the structure.

It is best to mount the pendulum arm on ball or roller bearings. This will provide the best precision and rigidity. But if there are no suitable finished products, it is quite possible to spy on the options for homemade designs of this unit.

If there are no ready-made bearings, match pairs of metal tubes and steel pins of suitable diameters. This will make it possible to make not too high-quality, but home-made bearings. For a “plywood” machine as a suspension of the pendulum arm, good canopy hinges used for fastening doors and gates will do.

In any case, the pendulum arm itself is best made from a metal corner or metal profile. But the holder, in which the angle grinder will be fixed, will probably be made of a wooden bar.

For a secure and tight fixation of the angle grinder in the holder, it is better to glue the stock with a soft and durable material. For example, leatherette. And it is most convenient to press the angle grinder to the holder with flexible metal ties with a screw assembly. These are widely used in plumbing and car service.

The bed is best made from a thick sheet of metal. Compromises are possible, down to thick plywood fixed to a timber frame. It is good to provide on the desktop the possibility of fixing the abutment corners at some standard angles to the cutting axis. Thus, we get a “miter saw”.

Do not forget that you will not be able to control the inclusion of the angle grinder on the machine in the usual way. We can replace the operator’s hand on the control keys with the same screw ties for pipelines. But the keypad control post (which we will fix on the bed), the socket for connecting the fixed angle grinder to the circuit and a wire with a plug of sufficient length to connect the entire machine to the network should be saved.

If we have metal blanks at our disposal, it is best to connect them by welding. If you do not have such an opportunity, it is better to contact the familiar masters of this business. Bolted connections loosen over time and negate all the advantages of a metal frame.

Of course, the angle grinder itself will come in handy in the manufacture of the machine. Cutting with its help blanks for the rack, you can feel like Munchausen pulling himself out of the swamp by the pigtail.

Rectangular bed

Very stiff in itself, this profile allows for a rigid and sturdy frame. importantly, the pendulum arm made from this material will barely bend during operation.

But the bed frame is only half the battle. On top of the frame, you need to put a “table top”. a plate on which the processed material will be placed under the angle grinder.

If the frame is made of metal, sheet metal is the best material for the workbench. However, a thick sheet of plywood or chipboard is also quite suitable. Just do not forget that a fairly wide slot must be provided in the tabletop directly under the disc of the angle grinder in the table top, which ensures the through passage of the disc through the material to be cut.

The upright is a very busy pendulum saw assembly. The use of a metal profile will create a strong and rigid structure.

When using metal as the basic element of the machine, preference should be given to welded joints. Of course, metal profile products can also be bolted together.

But such connections do not provide the required rigidity.

Manufacturing options

Honestly, the do-it-yourself racks available in many designs should rather serve as food for thought. It is worth taking a closer look at the design, typical dimensions of standard elements and general design principles. Then apply them in our particular case.

The fact is that the dimensions of the structure and individual nodes will entirely depend on what you have at your fingertips. For a large angle grinder (eg 230 angle grinder), you may need to make a holder larger than shown in the drawing. This will entail the need to replace bearings, and so on.

The general principles are clear enough. The simplest and most commonly used machine is the transformation of a hand-held angle grinder into a stationary pendulum saw. This design consists of a frame, a stand and a pendulum arm, which is hinged on the stand.

Consider manufacturing options depending on the materials available.

Wooden elements

If it is not possible to make the basic elements of a pendulum saw from metal, do not despair. Many structural elements can be made from wood. First of all, this is the bed, pendulum arm and angle grinder holder.

The frame can be made from any suitable lumber. Very good frames, assembled from bars of hard and heavy wood of significant cross-section. They are both durable and quite heavy. This ensures the stability of the entire machine.

The frame, assembled from an oak bar with a section of 100×100 mm, is certainly impressive. But it is too expensive. Thick bars of larch or even birch are quite suitable for the base of the desktop.

But for the manufacture of the pendulum arm, you can just use the noble types of wood traditionally used in furniture production. Oak would be quite appropriate here.

When constructing a machine from wood, do not forget about the overall rigidity of the structure. Significant dimensions of the bed make it possible to ensure the strength and rigidity of this part when manufactured from not the highest quality materials.

The pendulum arm has a long, elongated design. If made of wood, its geometry can be unstable with changes in temperature and humidity.

For this structural element, it is better to use the so-called furniture board, consisting of several wooden elements glued together.

Plywood parts

An interesting solution to the problem of stiffness can be the use of plywood in a wooden structure. The multidirectionality of veneer layers in this material imparts a certain dimensional stability to plywood products. The fact that the product consists of many thin layers connected with a strong adhesive provides strength.

Plywood is great for making beds and work tables. When designing, it should be borne in mind that plywood is very strong and stable in the plane of the product. But the plane itself can undergo deformation. Therefore, plywood products should be mounted on rigid frames.

A good example of a design is a multi-layer plywood assembly with intermediate bonding and bolting.

The result is very strong, rigid and stable structures.

Making a stand for an angle grinder with your own hands

Angle grinders (angle grinder) are an indispensable hand tool. With their help, you can saw, grind, cut almost any material from wood to stone. But often there are tasks that require the use of a machine park.

For example, when cutting pipes, a profile or a metal profile, it is quite common to cut a long string into segments of a certain length. In this case, it is important that the ends of the segments are strictly perpendicular to the axial mowing line.

When cutting tiles or bricks, it is even more difficult to maintain a square cut by holding the angle grinder by hand. When cutting thin and viscous material, the slightest deviation of the tool from the mowing line of the cut can lead to jamming and tool breakage.

In such situations, it is quite natural to desire not to buy a separate machine. this, as a rule, is economically impractical.

You can expand the scope of your favorite hand tool by rigidly securing it in some way.

Carriage made of pipes and shock absorbers

If there are water pipes, a pair of car shock absorbers and a metal corner or profile in stocks, you can make a wonderful cross-cut (aka “cut-off”) machine with a transverse horizontal carriage feed.

The pendulum unit is still required to bring the tool into the cutting plane. But the carriage, movable along the pendulum arm, allows you to significantly expand the range of material sizes. Now you can cut quickly and accurately not only pipes, profiles and beams.

The horizontal carriage travel allows you to neatly cut sheet materials as wide as we can design the carriage overhang.

Complex rail assemblies with spring-loaded bearings are usually designed to ensure smooth yet accurate carriage travel. But you can use car shock absorbers. They have a very robust and precise construction. If you remove gas and liquid, you get excellent guides.

The rear shock absorbers of VAZ cars have a stroke of almost 200 millimeters. This will allow, for example, when attaching an angle grinder-230 to the carriage, to organize a cutting line up to 400 mm long. But even if you have a compact angle grinder with a disc only 150 mm in diameter, you can still cut sheets up to 200 mm wide. This more than covers most of the daily tasks.

When designing the “guide-carriage” assembly based on automobile shock absorbers, it should be taken into account that the shock absorber bodies themselves are rather thin and easily wrinkle. Such “guides” should be fastened to the upper arm of the pendulum with semicircular clamping brackets. This is where water pipes come in handy.

Manufacturing options

The general principles are clear enough. The simplest and most commonly used machine is the transformation of a hand-held angle grinder into a stationary pendulum saw. This design consists of a frame, a stand and a pendulum arm, which is hinged on the stand.

Consider manufacturing options depending on the materials available.

Materials and tools

The first question that a home craftsman faces when designing a stand for an angle grinder is what to make it from. The answer to this question is elementary: we will do what we have. If you have water pipes at hand, they will come in handy for making hinges and guides. If there is a metal corner, we will assemble a frame from it.

In any case, the pendulum arm itself is best made from a metal corner or metal profile. But the holder, in which the angle grinder will be fixed, will probably be made of a wooden bar.

For a secure and tight fixation of the angle grinder in the holder, it is better to glue the stock with a soft and durable material. For example, leatherette. And it is most convenient to press the angle grinder to the holder with flexible metal ties with a screw assembly. These are widely used in plumbing and car service.

Rectangular bed

Very stiff in itself, this profile allows for a rigid and sturdy frame. importantly, the pendulum arm made from this material will barely bend during operation.

But the bed frame is only half the battle. On top of the frame, you need to put a “table top”. a plate on which the processed material will be placed under the angle grinder.

If the frame is made of metal, sheet metal is the best material for the workbench. However, a thick sheet of plywood or chipboard is also quite suitable. Just do not forget that a fairly wide slot must be provided in the tabletop directly under the disc of the angle grinder in the table top, which ensures the through passage of the disc through the material to be cut.

The upright is a very busy pendulum saw assembly. The use of a metal profile will create a strong and rigid structure.

When using metal as the basic element of the machine, preference should be given to welded joints. Of course, metal profile products can also be bolted together.

But such connections do not provide the required rigidity.

Safety engineering

As with any electrical tool, electrical safety guidelines must be followed. Do not work in rooms with high humidity. When installing the machine on the street, it is advisable to build at least a temporary shed above the workplace to protect it from precipitation.

Like any cutting tool, an angle grinder, even when attached to a machine, requires strict adherence to safety precautions. It is absolutely unacceptable to work without a protective cover around the disc. And also the use of protective glasses or a transparent shield is mandatory.

Gloves are neglected by many. and in vain. Sparks flying out from under the saw stone only seem small and harmless. Crumbs of abrasive and processed material fly like bullets and can penetrate deep under the skin.

You can learn more about how to make a metal stand for an angle grinder with your own hands.

The capabilities of the angle grinder can be expanded not only by using various attachments, but also by installing it on special home-made devices. As a result, you can get a cutting machine, with which it becomes possible to accurately cut metal blanks at any angle. In addition, the angle grinder can be mounted on a carriage, and the resulting machine can be used to cut sheet steel.

Option 2

Another version of the device for an angle grinder, with which it will be possible to cut metal workpieces, is done as follows.

Take 2 sections of profile pipe of the same height and weld them to a rectangle pre-cut from sheet metal.
Drill holes in 2 racks and in the lever (the length is selected experimentally), then fix the latter with a bolt, as shown in the photo below.
Attach a spring to the back of the lever.
At the intended attachment point of the angle grinder on the rod, drill a through hole.
You can now attach the angle grinder to the table.

Make your own large angle grinder stand and metal chop saw

Thus, we have a simple cut-off machine. To give additional rigidity to the attachment of the device to the lever, you can use clamps, having previously laid between the body of the angle grinder and the pipe, for example, a wooden block.

For accurate cutting, so that the workpiece does not move, you will need to screw the corner to the table.

For a small angle grinder, a similar version of the device is also suitable, only the angle grinder will be attached to a metal strip: on the one hand, with a bolt to the angle grinder itself, and on the other, with a clamp.

For a powerful angle grinder, the adaptation is made according to the same principle, but from larger profiles than in the figures above.

It is not necessary to use dumbbells as a counterweight. It is enough to find a suitable spring.

We make a machine for cutting metal using high-quality equipment: TOP 3 manufacturers of angle grinder

This list contains brands whose technology has received high marks from ordinary users and professionals:

Bosch. It is famous for its reliability, well thought out small structural elements. A significant limitation is the high cost even in the basic configuration.
Hitachi were initially expensive. But nowadays, part of the production has been moved to China, which has reduced costs. Some models do not have automatic speed stabilization under load.
Makita. Reasonable combination of price and quality. All new high power models are equipped with effective overload protection, which extends the real life.

Option 1

To make this attachment for an angle grinder, you will need the skills of a welder. So, you need to do the following.

First, cut 2 small pieces from the corner (50×50 mm). Their size is selected based on the dimensions of the gear unit of your angle grinder.

Next, drill holes with a diameter of 14 mm in them and screw the corners to the angle grinder, as shown in the following photo. If you do not have suitable bolts, M14 threaded studs can be used. Just be careful that the bolts are not too long. Otherwise, in some models of angle grinder, they may cling to the impeller located in the gearbox housing.

Without removing the corners from the angle grinder, grab them with welding. After that, the corners can be removed and scalded well.

Sand the welds with an angle grinder.

Then you need to make a rotating support for the lever on which the apparatus will be fixed. To do this, select 2 pipes of such diameters so that one can enter the other without much effort.

For a more accurate cut, you can glue masking tape on the tubes and draw a fishing line on it.

Then, while turning the tube, carefully cut the angle grinder. A pipe section of a smaller diameter should be 20 mm shorter (thickness of 2 bearings). it will serve as a spacer.

For a thicker pipe, select 2 bearings that match its inner diameter. After that, insert a thin tube into a thick one and press the bearings on both sides.

Then insert a stud into the bearings. It is imperative to lay a washer in front of the nut.

When the swivel mechanism is ready, you need to weld a small piece of the corner to it.

At the next stage, a stand is made for the swivel mechanism from the same corner 50×50 mm. To make the segments the same length, the corners can be tightened with a clamp and cut off.

Also, without unscrewing the clamp, they can be drilled immediately.

Attach the drilled corners to the finished pivot block using nuts.

Weld a longer corner to this rack, as shown in the following photos.

Now you need to decide on the length of the lever on which the angle grinder will be fixed. This is done by the selection method, based on the dimensions of your angle grinder. You can lay out the parts on the table and calculate the approximate dimensions of the lever, which is better made from 2 pieces of a square profile pipe 20×20 mm.

The pipes must also be clamped with a clamp and cut to the same size.

After all the parts are ready, they can be welded together, as shown in the following photos.

In the next step, you can attach an angle grinder to the finished structure and check again what came of it.

The finished swingarm for the angle grinder can be easily installed on any flat surface such as a workbench. Also, this design can be installed on a table specially made for it. For a more rigid fastening of the mechanism, you can weld small pieces of corners on both sides of the long corner, and drill holes in them.

In the following photos you can see how a ready-made device for an angle grinder is fixed on the table (in this case, a metal bed is used).

It is very important to set a right angle between the plane of the cutting wheel and the plane of the table. Place the square on a table and slide it over to the abrasive wheel on the angle grinder. If initially you managed to weld the fixture so that the angle between the planes was 90 degrees, then this is good. If you notice a deviation from a right angle in one direction or another, then you can correct the situation with a scrap or a long profile pipe, for example, 60×20 mm.

So that the part does not budge during cutting, a corner can be screwed onto the table, which will serve as an emphasis. Also, for an accurate cut, the table can be easily improved with a simple vice made of a nut welded to it and a stud of the required length screwed into it.

Next, you need to make a protective casing. It is made taking into account the maximum diameter of the cutting disc, which is permissible to put on a specific model of an angle grinder. To make it easier to determine the dimensions of the casing and places for its attachment, you can first make a template, for example, from a piece of cardboard.

It is required to cut 2 blanks from tin for the future casing.
Screw an aluminum corner to one of the blanks. With its help, the casing will be attached to the rod of the device.
Twist 2 halves together.
Drill holes on the pendulum rod for the angle fixed to the cover, cut a thread into them and screw on the protective cover.

In this case, the casing will also serve as a limiter for the cutting tool, which does not allow it to go too deep into the table during the processing of the part.

It will not be superfluous if you make spring loading for the lever with the angle grinder attached to it. In this case, it is easy to do this: insert a smaller tube on the back of the rod and attach a spring to it, as shown in the following photo.

On this, the manufacture of a cutting machine with your own hands, in which an angle grinder is used as a drive, can be considered complete.