Manifold modern devices and machines for construction and repair allows you to have an entire workshop at home. But not everyone lives in their own home, and not everyone has the opportunity to place such a workshop in a city apartment. Then savvy men use one device as another. For example, you can make a grinder from a grinder with your own hands.
Grinder is a belt grinding machine that is designed for dry grinding of products. The product can be made of metal, artificial or natural stone or from other solid materials.
You can make a grinder yourself if you use certain drawings and follow the recommendations.
Why do you need a grinder?
Using this grinding machine you can perform the following operations:
- eliminate small defects on any hard surface;
- remove burrs (protrusions of glass and other materials after casting, stamping, trimming and other mechanical influences);
- clean the corrosive layer before further processing and painting;
- eliminate the consequences of laser or plasma cutting;
- remove flash, that is, excess material during casting;
- eliminate defects during the welding process.
However, not everyone can purchase a factory-made belt grinding machine for their own use. Firstly, professional equipment it costs expensive. And secondly, an industrial grinder has large dimensions (in production it can occupy a separate room), and transportation will also cause many difficulties. That is why almost everyone can get a grinder from an ordinary grinder at home if desired.
Features of homemade production
The design of the grinder is quite simple, which gives everyone a chance to create such a machine with their own hands. In this case, it is possible to expand the range of technological operations for grinding parts made of various materials. It must also be taken into account that industrial equipment requires periodic maintenance, and you can easily cope with repairing a homemade grinding machine without special tools and equipment.
To make a grinder yourself, you need to do the preparatory work:
Since grinding is carried out both horizontally and vertical plane, then it is important to design a machine that would have great functionality so that any part can be polished at the desired angle.
Manufacturing process
For the manufacture of power parts, it is necessary to use metals with a thickness of more than 10 ml. The base is made of even thicker metal - from 12 millimeters. You can connect the elements using screws and nuts, but you will have to make a lot of holes in the metal. That's why experienced craftsmen They prefer to use electric welding to fasten the base parts.
The greatest difficulty is in manufacturing the structure responsible for rotation rotary mechanism to ensure processing of parts in different planes. All grooves for turns are made using a milling machine, but if you don’t have one, you can use a drill or file.
To simplify the work, many people use channels. If necessary, the pipes are polished with a grinder. The structure of pipes and channels is attached to a metal base, after which four rollers are attached to it:
- drive – 150 mm wide;
- tension – about 100 mm wide;
- two small ones - 70 mm (to guide the tape).
Experienced craftsmen advise using rollers made of titanium or duralumin, and the attachment on the grinder should be made of steel, since it is the largest. Finding a titanium blank of this size is very problematic.
There are craftsmen who create rollers from couplings for polypropylene pipes 40 mm in diameter and bearings 203. In this case, the tape must be tensioned using a gas lift. It is important that all the rollers are in line so that the tape does not jump off. This largely depends on the strength of fastening of all parts. The rotation speed can be changed using the speed controller on the Interskol angle grinder.
For various works In a home workshop, it is not always advisable to purchase specialized power tools, which, as a rule, are quite expensive. Do-it-yourself devices, which include a milling cutter made from an angle grinder, are more relevant in such situations. Using such a device, the basis of which can be a household electric drill, you can perform various technological operations– milling, edge processing, forming tenons and grooves on the surface of wooden workpieces, preparing seats for door hinges and castles, etc.
Materials used
Making your own milling cutter from an angle grinder to equip a home workshop requires meeting certain conditions, the main of which are ensuring reliable fixation of the power tool in a vertical plane and its movement relative to the surface of the workpiece.
In order to make your own milling machine from an angle grinder that satisfies the above conditions, you will need the following components and consumables:
- grinder or electric drill, the drive motor of which must be in working order (in addition, structural elements, with the help of which these devices will be fixed to load-bearing structure, must be sufficiently strong and reliable);
- the base on which the future router will be fixed (the surface of a desktop or workbench can be used as such a base, which should be highly reliable and stable, and also ensure ease of working with);
- thick plywood or thin sheet metal (from which you will make with your own hands the part of the router structure on which the grinder or electric drill will be fixed);
- welding machine(if sheet metal will be used in the design of your router);
- fasteners (clamps, screws, bolts and nuts);
- standard set locksmith tools.
Thus, to make a milling cutter from an angle grinder with your own hands, you will need materials that are available in almost every home workshop or in any garage. Accordingly, in order to make such a machine and start using it, significant financial investments will not be required, which cannot be said about the situation when a serial model of such a device is purchased.
Manufacturing algorithm
Making your own milling cutter based on a grinder or drill is carried out in the following sequence:
- From thick plywood, chipboard or thin sheet metal make the base of the milling machine, which consists of two walls located opposite each other. One of the walls of such a base, which is not used to fix the grinder or drill, can be made movable. This will allow you to change its spatial position depending on the length of the part that will be processed.
- A metal cone is fixed on the moving part of the future router, which is used to hold the workpiece during processing.
- The tool with which processing is performed on a home-made machine is placed on the side of the frame. You can use tools of almost any configuration and any size on such a router.
In the event that the milling machine will be manufactured not on the basis of an electric drill, but on the basis of an angle grinder, a special adapter will have to be included in its design, which will ensure the fixation of the sleeve used to rotate the workpiece. If the basis homemade router is a drill, then such a sleeve is simply fixed in the chuck of the power tool.
Thus, making a router from a grinder or an electric drill with your own hands is simple. To do this, you don’t even need to invent your own device design - just use ready-made ideas, which have already been tested in practice by many home craftsmen.
The capabilities of the grinder can be expanded not only through various attachments, but also by installing it on special homemade devices. As a result, you can get a cutting machine, with which you can accurately cut metal workpieces at any angle. In addition, the grinder can be mounted on a carriage, and the resulting machine can be used for cutting sheet steel.
In order to understand how to make a cutting machine from an angle grinder (angle grinder), you can look at various drawings on the Internet. But they will be of little help, since all the dimensions of the parts will still have to be selected based on the size of the grinder you have. Options for making devices can be either simple or more complex, requiring the ability to operate a welding machine.
Option 1
To make this device for an angle grinder, you will need welding skills. So, you need to do the following.
First, cut 2 small pieces from the corner (50x50 mm). Their size is selected based on the dimensions of the gearbox 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, you can use M14 threaded rods. Just be careful that the bolts are not too long. Otherwise, in some models of angle grinders they may cling to the impeller located in the gearbox housing.
Without removing the corners from the angle grinder, secure them by welding. After this, the corners can be removed and scalded well.
Clean the welds sanding attachment for the Bulgarian.
Then you need to make rotating lever support, on which the device will be attached. To do this, select 2 pipes of such diameters that one can without special effort enter another.
For a more precise cut, you can glue onto the tubes masking tape and draw a line on it.
Then, turning the tube, carefully cut it with an angle grinder. A piece of pipe with a smaller diameter should be 20 mm shorter (the thickness of 2 bearings) - it will serve as a spacer.
For a thicker pipe, select 2 bearings suitable for its inner diameter. After this, insert the thin tube into the thick one and press the bearings on both sides.
Then insert the pin into the bearings. Be sure to place a washer in front of the nut.
When the rotating mechanism is ready, you need to weld a small piece of corner to it.
On next stage done stand for rotary mechanism from the same corner 50x50 mm. To ensure that the pieces are the same length, the corners can be tightened with a clamp and trimmed.
Also, without unscrewing the clamp, they can be drilled immediately.
Attach the corners with drilled holes to the ready-made rotary block using nuts.
Weld a longer corner to this rack, as shown in the following photos.
Now you need to decide lever length, on which the angle grinder will be attached. This is done by selection 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 best made from 2 square segments profile pipe 20x20 mm.
The pipes also need to be clamped with a clamp and cut to the same size.
Once all the parts are ready, they can be welded together, as shown in the following photos.
At the next stage, you can attach the angle grinder to the finished structure and check again what came out of it.
A ready-made pendulum mechanism for an angle grinder can be easily installed on any flat surface, for example, on the 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 sections of the corners on both sides of the long corner and drill holes in them.
In the following photos you can see how it is fixed on the table (in in this case a metal frame is used) a ready-made device for an angle grinder.
It is very important to set a right angle between the plane of the cutting disc and the plane of the table. Place the square on the table and move it towards the abrasive wheel mounted on the angle grinder. If you initially managed to weld the fixture so that the angle between the planes was 90 degrees, then that’s good. If you notice a deviation from right angle in one direction or another, then the situation can be corrected with the help of a crowbar or a long profile pipe, for example, 60x20 mm.
To prevent the part from moving when cutting, you can screw a corner onto the table that will serve as a stop. Also, for precise cutting, the table can be easily improved with a simple vice, made from a nut welded to it and a pin of the required length screwed into it.
Next you need make a protective casing. It is done taking into account maximum diameter cutting disc that can be installed on a specific model of angle grinder. To make it easier to determine the size of the casing and the places for its attachment, you can first make a template, for example, from a piece of cardboard.
In this case, the casing will also serve as a limiter for cutting tool, preventing it from going too deep into the table while processing the part.
It would not be superfluous if for a lever with a grinder attached to it make springing. In this case, it’s easy to do: insert a tube on the back of the rod smaller size and attach a spring to it as shown in the following photo.
At this point, the manufacture of a cutting machine with your own hands, in which an angle grinder is used as a drive, can be considered complete.
Option 2
The next version of the device for the grinder, with which you can cut metal workpieces, is done as follows.
Thus, we got a simple cutting machine. To add additional rigidity to attaching the device to the lever, you can use clamps by first placing, for example, a wooden block between the angle grinder body and the pipe.
For precise cutting, so that the workpiece does not move, you will need to screw a corner to the table.
For a little Bulgarian A similar version of the device is also suitable, only the angle grinder will be attached to a metal strip: on one side with a bolt to the angle grinder itself, and on the other with a clamp.
For powerful angle grinders The device 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. All you have to do is find a suitable spring.
Option 3
This device option is the simplest for making it yourself. It is made without a traditional stand (stand) for the rotating block. All you need is one door hanger, a metal strip, and an elastic band (you can use a rubber band from a hand-held resistance band).
The design is done as follows:
- in the metal strip, on one side, drill holes for the door canopy, and on the other, for a bolt, which will be used to fasten the strip to the angle grinder;
- screw the angle grinder and canopy to the strip;
- screw the canopy to the table;
- fasten one end of the elastic band to the edge of the table, and the other to the holder (handle) of the angle grinder.
In just a few minutes you will get a high-quality cutting machine. This device is also mobile, because it can be carried with you in a suitcase with tools, and, if necessary, mounted on any flat surface.
When installing this device, do not forget to attach a corner to the table to rest the workpiece against it.
Cutting sheet hoists using an angle grinder
To cut sheet metal you will need to purchase special carriage, which moves along a guide (profile square pipe).
But as practice shows, the cost of a good carriage is high (more than $100), so you can make it yourself. Since this process is quite difficult to describe, you can understand the manufacturing technology of this slider from this video. Using the device you can cut not only steel, but also ceramic tiles, and porcelain stoneware.
Please note that cutting ceramics generates a lot of dust. Therefore, it is recommended to adapt a dust collector with a pipe for a vacuum cleaner to the angle grinder casing.
How to make a homemade dust collector
The simplest dust collector for an angle grinder can be made from plastic bottle from motor oil.
The nozzle is made as follows.
After these simple steps, you can use the grinder to process materials that create a lot of dust when cutting.
Electric file, also known as tape file Grinder- a very convenient thing for sharpening, grinding and other types of processing. Belt grinding machines are especially popular among craftsmen who make knives. Using it, it is very convenient and quick to grind the blade, and making even bevels and sharpening the knife to the state of the blade is not a problem at all.
Today we will look at how to make a simple belt sander from an angle grinder. This machine does not have a very wide sanding belt, but is intended mainly for self made. However, no one forbids you to secure it and use it as a stationary one.
Different tools can be used to make such a nozzle. The author used a fairly professional set of tools - a lathe plus a drilling machine. However, you can do without them if you are smart.
A lathe will be needed to make the drive “pulley” that transmits motion to the sanding belt. It is made of wood. You can simply clamp the workpiece into a drill chuck or attach it to the shaft of an angle grinder.
As for the drilling machine, it’s more complicated; the author uses it to make a mounting bracket, and also cuts out a drive wheel from wood.
Materials and tools that the author used for homemade products :
List of materials:
- thick steel plate;
- three bearings;
- steel axle;
- steel plate;
- steel tubes (one should go into the other);
- spring (for belt tension);
- plywood;
- screws;
- long nut (with a thread like on the shaft of an angle grinder);
- dye;
- epoxy adhesive.
List of tools:
- Bulgarian;
- mitral saw;
- pliers;
- ;
- ;
- tap;
- ;
- rasp;
- sandpaper;
- lathe;
- vice.
Manufacturing process devices :
Step one. Making a mounting bracket
One of the most complex tasks in this case there is a mounting bracket that holds the entire structure on the grinder. It is installed instead of the front handle of the angle grinder. However, if you have all necessary tool, then there is nothing complicated about it. You can go over in a simple way during the manufacture of this bracket. For example, it can be made from an ordinary steel plate, bent to size, and then another plate can be welded to it to secure the entire structure. In general, there are a lot of solutions, let’s look at how the author did it.
The author took a thick steel plate and drilling machine I drilled a hole the same diameter as the front part of the angle grinder to which the handle is attached.
Next, using a miter saw, he made a slot up to this circle, so that later the part could be tightened on the grinder with a screw.
We take a grinder and grind off all the excess from the bracket. We cut off the rough edges, then simply sand them. There is nothing difficult about it, but you need to spend time.
Again we turn to the help of a drilling machine and drill a hole for the tightening bolt. After this, we clamp the workpiece in a vice and use a tap to cut the thread for the bolt. Basically, you can just drill through hole, and then tighten it with a bolt and nut.
Step two. Making the drive wheel
The drive wheel is made of plywood; if it is not thick enough, you can use pieces. Cut out the required number of round timbers on a drilling machine, and then glue and tighten with screws on both sides to be sure.
We clamp the wheel in a vice and use a rasp of suitable thickness to grind out a pentagon. This is done so that the nut can fit inside; the thread on the nut must be such that it can be screwed to the angle grinder shaft.
Prepare the nut. Make grooves on it over the entire area; you can use a grinder for this, but the author uses a file. It is also advisable to treat the surface with coarse sandpaper. This is all done for good gluing.
Divorce epoxy resin with hardener, lubricate the nut and carefully press it into the wheel. Wait for the glue to dry.
Now you can move on to grinding the wheel. Clamp in lathe bolt, and screw the wheel onto it. We turn on the machine and form the wheel profile. It should be larger in diameter in the center than at the edges. Thanks to this condition, the sanding belt does not fly off the device during operation. Finish the job with sandpaper.
Step three. Nasal axis
In the bow of the device there is also a wheel, that is, a driven wheel. It is made of three bearings. You need to find an axis under them. To secure the whole thing, we take the plate and drill two holes in it with a slightly smaller diameter than the selected axis. The point is to then press these plates onto the axle. Cut two parts from the plate and grind them as the author did.
Press the plates onto the axle using a vice. Now all you have to do is weld another plate to them on top. Also weld the plates to the axle on both sides for reliability.
Next, weld a piece of pipe to this part; it should be slightly smaller in diameter than the main frame pipe. That is, one pipe must go into another.
Step four. Working plane
A piece of pipe is used as a “frame”. Weld a metal plate to it. You will rely on it when working with the tool.
Step five. Modification of the retractable pipe
Cut two pieces from the pull-out pipe. Bend one piece and plug the pipe with it. This support will be needed for the spring. We will need the second piece when final assembly designs.
Step six. Arrangement of the tension system
One pipe goes into the other, and between them there is a spring, which tensions the sanding belt. So, to prevent the retractable pipe from twisting, you need to cut a rectangular hole in it. First, drill a series of holes with a drill, and then cut out a rectangle with a Dremel or grinder.
Drill a hole in the main pipe for the bolt. We take a bolt with a nut and then carefully weld the nut opposite the hole. Now when you tighten the bolt it will hold the inner tube in place.
Step seven. Final assembly
Now everything can be put together. Take the previously cut piece of pipe and use it to connect the bracket to the main structure. Weld well, everything should be secure.
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