Manifold modern appliances and machines for construction and repair allows you to have a whole workshop at home. But not everyone lives in their own house, 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 - belt- grinding machine, which is intended for dry grinding of products. The product can be made of metal, artificial or natural stone or other solid materials.
You can make a grinder yourself if you use certain drawings, as well as follow the recommendations.
Why do you need a grinder?
With this grinder, you can perform the following operations:
- repair 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 in the welding process.
However, not everyone can purchase a factory-made belt grinder for their own use. Firstly, professional equipment it costs expensive. And secondly, the industrial grinder has large dimensions (in production it can occupy a separate room), besides, transportation will also cause a lot of difficulties. That is why a grinder from an ordinary grinder can be obtained, if desired, by almost everyone at home.
Features of homemade manufacturing
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 from various materials. It must also be taken into account that industrial equipment needs periodic maintenance, and you can easily handle the repair of 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 in horizontal and in vertical plane, then it is important to design a machine that would have great functionality so that polishing of any part occurs at the right 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 with screws and nuts, but you will have to make a lot of holes in the metal. That's why experienced craftsmen for fixing parts of the base, they prefer to use electric welding.
The greatest difficulty is the manufacture of the structure responsible for the rotation rotary mechanism to ensure the processing of parts in different planes. All grooves for turns are made using a milling machine, but if it is not there, you can use a drill or file.
To simplify the work, many 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 for the angle grinder should be made of steel, as it is the largest. Finding a titanium ingot of this size is very problematic.
There are craftsmen who create rollers from a clutch for polypropylene pipes 40 mm in diameter and bearings 203. In this case, it is necessary to tension the tape using a gas lift. It is important that all the rollers are on the same line so that the tape does not come off. This largely depends on the strength of the 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. More relevant in such situations are do-it-yourself devices, which include a milling cutter from a grinder. With the help of such a device, the basis of which can also be a household electric drill, you can perform various technological operations- milling, edge processing, the formation of spikes and grooves on the surface of wooden blanks, preparation of seats for door hinges and castles etc.
Materials used
Making a grinder with your own hands to equip a home workshop requires the fulfillment of certain conditions, the main of which are to ensure that the power tool is securely fixed in a vertical plane and that it moves relative to the surface of the workpiece.
In order to make your own milling machine from a 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 condition (in addition, structural elements, with which these devices will be fixed on load-bearing structure must be sufficiently strong and reliable);
- the base on which the future router will be fixed (as such a base, which should be highly reliable and stable, as well as provide ease of working with, the surface of a desktop or workbench can be used);
- thick plywood or thin sheet metal (of which you will make with your own hands that 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 grinder from a grinder with your own hands, you will need materials that are 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
Do-it-yourself manufacturing of a milling cutter based on a grinder or drill is performed 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 movable part of the future milling cutter, which is used to hold the workpiece during its processing.
- The tool through which processing is performed on a do-it-yourself 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 is not made on the basis of an electric drill, but on the basis of a 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 power tool chuck.
Thus, making a router from a grinder or an electric drill with your own hands is simple. To do this, you do not even need to invent your own design of the device - 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 nozzles, but also by installing it on special homemade 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 grinder can be installed on a carriage, and the resulting machine can be used for cutting sheet steel.
In order to understand how to make a cutting machine out of an angle grinder (angle grinder), you can look at various drawings on the Internet. But they will not help much, since all the dimensions of the parts will still have to be selected based on the size of the grinder you have. Options for the execution of devices can be both simple and more complex, requiring the ability to handle a welding machine.
Option 1
To make this device for the grinder, you will need welder 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 block of your angle grinder.
Next, drill holes in them with a diameter of 14 mm and screw the corners to the angle grinder, as shown in the next photo. If you do not have suitable bolts, then you can use threaded studs M14. Just be careful that the bolts are not too long. Otherwise, in some models of angle grinders, they can cling to the impeller located in the gearbox housing.
Without removing the corners from the grinder, grab them by welding. After that, the corners can be removed and scalded well.
Clean up the welds sanding attachment for Bulgarian.
Then you need to make rotating arm support to which the machine will be attached. To do this, select 2 pipes of such diameters so that one can without special efforts enter another.
For a more accurate cut, tubes can be glued masking tape and draw a line on it.
Then, turning the tube, carefully cut it with an angle grinder. A piece of pipe of a smaller diameter should be shorter by 20 mm (thickness of 2 bearings) - it will serve as a spacer.
Choose 2 bearings suitable for its inner diameter for a thicker pipe. After that, insert a thin tube into a thick one and press the bearings on both sides.
Then insert the stud into the bearings. Be sure to put 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.
The next step is to swivel stand from the same corner 50x50 mm. To make the segments the same length, the corners can be pulled together with a clamp and cut off.
Also, without unwinding the clamp, they can be drilled immediately.
Attach corners with drilled holes to the ready-made swivel block using nuts.
Weld a longer corner to this rack, as shown in the following photos.
Now you need to decide on lever length, on which the angle grinder will be fixed. This is done by selection, based on the dimensions of your grinder. You can lay out the details on the table and calculate the approximate dimensions of the lever, which is best made from 2 square segments profile pipe 20x20 mm.
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.
At the next stage, you can attach the angle grinder to the finished structure and check again what came of it.
The ready-made pendulum mechanism for the grinder is easy to install on any flat surface, for example, on the workbench. Also this design can be installed on a table specially made for her. For a more rigid fastening of the mechanism, small pieces of corners can be welded on both sides of the long corner, and holes drilled in them.
In the following photos you can see how it is fixed on the table (in this case a metal frame is used) a ready-made fixture for angle grinders.
It is very important to set a right angle between the plane of the cutting disc and the plane of the table. Put the square on the table and move it to the abrasive wheel mounted on the angle grinder. If initially you 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 you can correct the situation with a crowbar or a long profile pipe, for example, 60x20 mm.
To prevent the part from moving when cutting, a corner can be screwed onto the table, which will serve as an emphasis. Also, for an accurate cut, the table is easily improved. simple vise made of a nut welded to it and a stud of the required length screwed into it.
Next, you need make a protective cover. It is done taking into account maximum diameter cutting disc, which is permissible to put on a specific model of angle grinder. To make it easier to determine the dimensions of the casing and places for attaching it, 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, which does not allow him to go too deep into the table during the processing of the part.
It will not be superfluous if for a lever with a grinder attached to it make a spring. In this case, it is easy to do this: insert a tube from the back of the rod smaller and attach the 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.
Option 2
Another version of the fixture for the grinder, with which it will be possible to cut metal blanks, is done as follows.
Thus, a simple cutting machine was obtained. To give additional rigidity to the attachment of the device to the lever, you can use clamps, after laying a wooden block between the angle grinder body and the pipe, for example.
For precise cutting, so that the workpiece does not move, you will need to screw the corner to the table.
For a little 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 fixture is made according to the same principle, but from profiles of a larger size than in the figures above.
It is not necessary to use dumbbells as a counterweight. All you have to do is find the right spring.
Option 3
This fixture option is the simplest for making your own. It is made without a traditional stand (rack) for a rotary unit. All you need is one door canopy, a metal strip and a rubber band (you can use a rubber band from a hand expander).
The construction is done as follows:
- in the metal strip, on one side, drill holes for the door canopy, and on the other, for the bolt with which the strip will be attached to the grinder;
- screw the angle grinder and the canopy to the strip;
- screw the canopy to the table;
- fasten one end of the elastic to the edge of the table, and the other to the holder (handle) of the angle grinder.
In just a few minutes you will receive a high-quality cutting machine. This device is also mobile, because it can be carried with you in a tool case, and, if necessary, mounted on any flat surface.
When installing this fixture, do not forget to fix a corner on the table to rest the workpiece in it.
Cutting sheet hoist with angle grinder
To cut sheet metal, you will need to purchase special carriage, which moves along the 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. With the help of the device, you can cut not only steel, but also ceramic tiles, and porcelain stoneware.
Please note that when cutting ceramics, a lot of dust is generated. Therefore, it is recommended to adapt a dust collector with a nozzle for a vacuum cleaner to the casing of the angle grinder.
How to make a homemade dust collector
The simplest dust collector for angle grinders can be made from plastic bottle from engine oil.
The nozzle is made as follows.
After these simple steps, you can use the grinder to process materials, the cutting of which creates a lot of dust.
An electric file, also known as a belt grinder, is a very handy thing when sharpening, grinding and other types of processing. Belt grinders are especially popular with craftsmen who make knives. With it, it is very convenient and quick to grind the blade, and bringing out 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 grinder from a grinder. This machine has a not very wide sanding belt, but is intended mainly for self made. However, no one forbids you to fix it and use it as a stationary one.
Tools for the manufacture of such a nozzle can be used different. 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.
The lathe will be needed in the manufacture of the leading "pulley", which transmits the movement to the sanding belt. It is made from wood. You can simply clamp the workpiece into a drill chuck or mount it on a grinder shaft.
As for the drilling machine, it’s more difficult here, the author uses it to make a mounting bracket, and also cuts the drive wheel out of wood.
Materials and tools used by the author for homemade :
List of materials:
- thick steel plate;
- three bearings;
- steel axle;
- steel plate;
- steel tubes (one must go into the other);
- spring (for belt tension);
- plywood;
- screws;
- long nut (threaded as on the grinder shaft);
- dye;
- epoxy adhesive.
List of tools:
- Bulgarian;
- mitral saw;
- pliers;
- ;
- ;
- tap;
- ;
- rasp;
- sandpaper;
- lathe;
- vice.
Manufacturing process fixtures :
Step one. Making a mounting bracket
One of the most difficult tasks in this matter is the mounting bracket that holds the entire structure on the grinder. It is installed instead of the front handle of the grinder. However, if you have all essential tool, then there is nothing complicated in this. You can go the easy route when making 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 fasten all structures. In general, there are a lot of solutions, let's consider how the author did it.
The author took a thick steel plate and drilling machine drilled a hole in diameter such as the front of the grinder, to which the handle is attached.
Then, with the help of a mitral saw, he made a cut to this circle, so that later the part could be pulled together on a grinder with a screw.
We take a grinder and grind off everything superfluous from the bracket. We cut off the rough edges, then just grind. There is nothing difficult in this, but it takes time.
Again we turn to the help of a drilling machine and drill a hole for the tightening bolt. After that, we clamp the workpiece in a vise and cut the thread for the bolt with a tap. Basically, you can just drill through hole and then tighten with a bolt and nut.
Step two. Making a drive wheel
The drive wheel is made of plywood, if it is not thick enough, pieces can be used. Cut the required number of rounds on a drilling machine, and then glue and tighten with screws on both sides to be sure.
We clamp the wheel in a vise and, using a rasp of suitable thickness, we grind out a pentagon. This is done so that the nut can go inside, the thread on the nut must be such that it can be screwed to the grinder shaft.
Prepare the nut. Make grooves on it over the entire area, for this you can use a grinder, but the author uses a file. It is also desirable to treat the surface with coarse sandpaper. This is all done for good bonding.
Dilute epoxy resin with hardener, grease 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 we wind the wheel on it. We turn on the machine and form the wheel profile. It should be larger in the center than at the edges. Thanks to this condition, the grinding belt does not fly off the fixture during operation. Finish off with sandpaper.
Step three. nose axle
In the bow of the device there is also a wheel, that is, a driven wheel. It is made up of three bearings. Under them you need to find the axis. To fix the whole thing, we take a 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 out two parts from the plate and grind them as the author did.
Press the plates onto the axle using a vise. Now you just have to weld another plate on top of them. Plates are also welded to the axis 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. Work plane
A piece of pipe is used as a "frame". Weld a metal plate to it. You will rely on it when working with a tool.
Step five. Extension of the retractable pipe
Cut two pieces from the retractable pipe. Unbend one piece and drown the pipe with it. This support will be needed for the spring. We need the second piece final assembly designs.
Step six. Arrangement of the tension system
One pipe goes into another, and between them there is a spring, which pulls the grinding belt. So, so that the retractable pipe does not twist, it is necessary 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 for the bolt in the main pipe. 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.
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 reliable.
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