Do-it-yourself grinder from an angle grinder

How to make a grinder from a grinder with your own hands

Dear visitors to the “ Samadekin Friend” , today we will look at detailed step-by-step instructions for creating a homemade grinding machine based on an angle grinder. The manual sanding machine is designed for cleaning and grinding wooden and metal surfaces; it includes a roller system with a tensioner and an electric motor that drives the roller and sanding belt in motion.
Today there is a huge selection of such tools, but the price for a quality product is appropriate. The master's task was to make a budget grinding machine

based on an angle grinder angle grinder, that is, the angle grinder can be used for its intended purpose, or in conjunction with a grinding platform, which is quite economical and rational.

On a lathe , 2 aluminum shafts were bored, bearings were pressed in and axles were inserted, then a frame with a support platform for the sanding belt was welded, as well as a spring-loaded belt tensioning mechanism. The master also made a mount for an angle grinder; the torque is transmitted from the angle grinder to the platform through a belt drive.

And so, let's look at what exactly is needed to assemble a grinder from an angle grinder.

Materials

1. aluminum blank (for shafts)
2. angle grinder grinder
3. sanding belt
4. metal 3 mm
5. spring

Tools

1. welding machine
2. drill
3. Angle grinder (grinder)
4. corner
5. lathe
6. ruler and marker

Step-by-step instructions for creating a grinder from an angle grinder with your own hands.

Now let's watch a step-by-step video instruction on how to make a grinding machine from an angle grinder with your own hands. Enjoy watching.

Making a Belt Sanding Machine

There are two main layouts of a belt sanding machine: with a vertical arrangement of the working part of the sanding belt and with a horizontal one. Among the creators of homemade grinding machines, the first is more popular, because it is suitable for various types of processing and is much more convenient for sharpening tools, and dust is discharged downward during the grinding process. As a material for the manufacture of the frame, main parts and rollers, many craftsmen very often use not metal, but plywood and wood. The latter option has a number of advantages:

• all components can be made in a carpentry workshop;
• It is much easier to adjust wood parts;
• wooden structure has less weight;
• The installation is vibration-resistant and easy to disassemble.

In order to make an efficient, reliable and safe grinding machine yourself, you must have at least some minimum engineering knowledge and skills in processing structural materials. Therefore, only the most important aspects of the manufacture and assembly of the machine will be considered below, the schematic layout of which is presented in the figure below.

Engine selection

The drive rotation speed is the most important characteristic of a homemade machine, since it is used to calculate the diameter of the drive pulley that transmits the rotation of the sanding belt. Each type of abrasive belt is designed to operate at a specific linear speed, which is measured in m/s, and its operating speed is equal to the peripheral speed of the drive pulley. Therefore, if you have an electric motor with known characteristics, the design of a grinding machine should begin with determining its diameter.

In addition, based on the length of the sanding belt and the diameters of the pulleys and rollers, their center-to-center distances are calculated and the overall dimensions of the future grinding machine are determined.

Frame structure

The machine frame is a box-shaped structure, inside of which there is a drive pulley and two rollers. It consists of a curved sidewall of a broken C-shape, installed on a wide base. The material used for all parts of this sanding machine is thick plywood. A work table with a slot for a sanding belt is attached to the lower ledge of the frame. The drive pulley is mounted on the vertical part of the frame, the guide roller is on the bottom end, and the tension and control pulley is on the top. The same shaped sidewall is hinged in the form of a door and completely covers the entire space with the pulley and rollers.

The undoubted advantage of this homemade belt sanding machine is that all its parts are made with simple tools in a carpentry workshop, and a minimum of types of fasteners and metal components are used during assembly. Apparently, the master spent no more than two days on its production.

From a safety point of view, the solution to completely enclose the rollers and belt seems ideal. And the significant disadvantages of this machine include only a small range of belt tension.

Video installation

After installing the pulley and rollers on the machine frame, they must be adjusted. During operation, the sanding belt moves at a speed of 10 to 30 m/s, and any deviation in the geometry of the relative position of the pulley and rollers can cause it to come off and break. Therefore, their axes must be set strictly parallel to the horizontal, and the planes of rotation along which the belt moves must clearly coincide vertically. The possibility of such adjustments should be provided for when developing the design of a belt grinding machine.

How to make a machine from a grinder with your own hands

A home workshop is a real mystery, where owners with skillful hands can create interior items, decor, prepare for renovations or prepare materials. Of course, equipment is implied, but all the necessary equipment is quite expensive.

In this case, machines are often made from hand tools, in particular, you can use a grinder to get a cutter, grinder and/or milling cutter. A grinder cutting machine is very similar to a plunge-cut circular saw, but with its help you can process almost all types of materials, as well as perform grinding and milling work.

Do-it-yourself sharpening machine from a grinder

This video shows a quick option on how to make a sharpener or emery from a grinder. Often, when working with a minimum of tools available, especially outside your workshop, the need for a sharpening machine arises. This is where the grinder comes in handy! Making a tool for an angle grinder in a workshop with your own hands is not difficult for a home craftsman. This small device for an angle grinder, mounted on a workbench or other suitable surface, will turn an angle grinder into a sharpener and will become a reliable assistant not only for sharpening tools (for sharpening band saws, circular saws, knives, etc.), but will also serve for grinding metal or wood surfaces. Emergency tool sharpening outside your workshop will no longer be a problem for you! Don't forget to like and subscribe to the channel.

In general, in my videos I talk about construction with “one helmet.” I do everything myself. One head and two hands. The main areas are DIY construction and repairs, but I also talk about gardening, crafts and useful things for the home.

At the moment, I am actively engaged in finishing and arranging my house from SIP panels, which is located in the Moscow region.

I record all stages of construction on video, sharing my experience and my thoughts. I do almost all the work for the first time.

I do everything for my own pleasure, and I wish the same for you!

Often a situation arises when it is necessary to sharpen a tool or sharpen knives. To perform these works, a sharpening machine is best suited - it is also called a sharpener or an emery machine. This is the simplest power tool, which consists of an electric motor and an abrasive wheel. There are many options sold in the retail chain, which differ from each other in price and manufacturer, but are designed to perform one function - sharpening a cutting tool. Do not rush to purchase a factory-made electric sharpener: any home craftsman can make it with his own hands if he has the necessary spare parts.

DIY equipment

Homemade equipment - adapting hand tools for workshop use

The video shows a self-made cutting machine from a grinder according to the drawings. As a basic design, you can choose several options and multifunctionally use such a universal angle grinder, with which you can cut, grind, mill, and engage in artistic milling of wood. When you see work done using a well-known tool, you are truly amazed.

Device for grinder

Of course, this tool deserves improvement; it is better to do it according to the drawings. Now let’s figure out how to adapt and obtain full-fledged equipment with which you can cut and process wood and other materials. An interesting combined homemade sander and milling version for carpentry work.

Cutter on platform

The simplest and most affordable option for a mini-workshop may be a homemade version, adapted to work on a table. In this case, the main tool is not statically attached and can be removed from the frame at any time. The platform is made of welded steel sheet, with a bracket attached to a spring. It is he who holds the power tool and provides a guiding cut.

The main difficulty in execution is the bed. Although the complexity is relative, some readers will still be interested in knowing the manufacturing details. They are shown in the video, which consistently covers many issues that need to be familiarized with when making such a platform. The proposed cutting machine has an improved design and is more suitable for working with metal, providing the required rigidity and ease of use. Thanks to simple devices, it allows for cutting at an angle. It will be especially appreciated by owners of small blacksmith shops.

We also offer drawings of the frame. If you understand the general principle of manufacturing, then it won’t cost you anything to come up with your own version of the platform, which may be more advantageous than those proposed.

DIY grinding machine

A good option for grinding, with which you can do quite complex operations, can be done with hand-held equipment. Its key difference will be high accuracy. Thus, with certain skills and dexterity, you can adapt the equipment to milling, for example, wood. The photo shows approximately how it will look.

Again, this implies a rigid fastening of the tool, which results in high precision and quality of grinding. The photo shows that the equipment is a plywood frame, the tool is attached using clamping bolts, that is, it can be used at any time as a mobile tool. The design may be even simpler, but no less convenient than the previous one.

Don't forget about safety

The main problem with such equipment is safety. Making a machine for an angle grinder is not a problem, but a violation of safety can lead not only to serious injuries, but also to the loss of a limb. The photo shows the improved design of the device, which does not hurt to add a protective casing on top. To prevent your hands from accidentally getting into the cutting area, you will also need protection and an emergency light button.

How to combine equipment in one device and take into account safety parameters

The photo shows one of the solution options, which can be considered universal - one platform can become the basis for cutting and grinding equipment. In this case, the tool can be removed and used as a mobile device for cutting metal and wood.

To implement this version, you will need to adjust the location of the casing and rigidly fix the cutting machine guide.

Attachments and hand tools for grinders

Please note that such stands for grinding and other types of equipment are already freely sold in stores and are classified as universal hand tools. The various designs are well thought out, easy to use and provide optimal operating parameters for hand-held equipment, allowing for cutting and grinding.

For grinders, various hand attachments are offered that simplify use. For example, this is an attachment for a wall chaser or a tool for cutting openings. It can be made from a special structural device.

The proposed option is connected to a vacuum cleaner that removes concrete dust and improves the parameters of use. For “home” production, you can adapt a simpler homemade machine from a grinder.

Perhaps you will offer your own machine for an angle grinder based on the drawings of your own production of similar mini-workshop equipment, which you would like to share.

Do-it-yourself cutting, sharpening and circular machine from an angle grinder

In this narrative

I showed some attachments and accessories for angle grinders and what their cost is. For little money you can expand the functionality of your grinder to a set of several tools.

But some devices can be made quite easily yourself, turning the grinder into a series of simple but convenient machines that will always come in handy in a workshop or at a construction site.

We have a thick plywood sheet. It has fastenings installed on it: racks that secure the rear part of the angle grinder through a bearing assembly on clamps. The front part of the grinder rests on a corner and is also fixed to the plywood. This is an easy way to make a grinder or sharpener.

Why a bearing unit? And in order to quickly turn the machine into a cutting machine. Just remove the corner from the front. And in the plywood we make a slot using a disk on the wood. On the right you can see the workpiece stop.

If the structure (the front part of the angle grinder) is fixed in a certain position so that the disk remains in the slot, and the sheet itself is turned over and installed on the legs, you will get a miniature circular saw. Just use it with workpieces that will not lead to the disc biting. I would exclude metal (aluminium) for work. And follow safety precautions!

How to assemble such a 3 in 1 machine, watch in this short video:

You can simplify this fastening unit, purchase four corners at a hardware store and screw the bearing unit to them.

I suggest looking at a few more options for homemade frames and accessories for your angle grinder, which will allow you to work both on a grinding (or sharpening) and cutting machine:

A plate with corners welded in the shape of a rectangular pipe (or you can immediately weld a rectangular pipe 60x40 mm) - we screw two corners to it with holes for attaching an angle grinder. A piece of round pipe is welded onto the plate for attaching a stand to support the workpieces. We fix the angle grinder with two bolts and clamp the “stand table”. That's it, we can grind or sharpen (depending on the stone or attachment on the grinder). But also - follow safety precautions!

The next option is a cutting machine for a large and powerful angle grinder:

The basis of the design is a turning mechanism from a truck. It is screwed to the frame, and a bracket for attaching the angle grinder is welded to it. Between the frame and the bracket there is a spring to return the angle grinder to its original position. The workpiece is also clamped with a homemade clamp made from an elongated nut and a stud on the same frame. There is no need to hold the workpiece with your hands.

There are similar frames made in China on sale. But as they write in the comments, they have too much play and the quality of the cut is poor.

Do-it-yourself sharpening machine from a grinder

A simple sharpening machine made from a grinder with your own hands, photo and detailed description.
I made a machine for sharpening small carbide cutters. I spent a couple of weekends on the whole project.

First of all, I bought a Makita grinder with 10,000 rpm.

I searched and found in the garage: scraps of a sheet 20 mm thick, a corner with a shelf 100 mm, a piece of strip 10 mm thick, steel and brass rods, a piece of duralumin, screws and wings.

I wanted the table to be adjustable in height and tilt. I also wanted the main table to have a movable table with an adjustable stop.

Actually, this was done, and this is how my homemade sharpening machine from a grinder turned out.

Movable table with stop. Screw handles.

I would like to clarify that the main idea of ​​the frame and bracket was to be able to adjust the table vertically and inclination. And the idea of ​​a movable table is that by pressing the cutter against the stop, you can gradually move it forward with a screw. That is, I moved the cutter with a screw, then the table back and forth along the circle. It’s still not enough, I moved the cutter forward with the screw and back and forth again.

The diamond wheel, despite its miniature size, cuts quite aggressively. In general, now I can sharpen small incisors quite quickly. True, I haven’t figured out how to make scales with degrees yet.

Over time, I will make a device for sharpening drills for this machine.

Homemade author: dudis.

Introduction

There are many modifications of grinding devices, but the design presented in this article is, in our opinion, very interesting and quite successful, since it is compact and easy to use. By design, such a tool is a device shaped like a slingshot, which is attached to a grinder. Rollers are installed on the “whiskers”, which form the track of the sander belt.

This article will describe step-by-step instructions for creating a grinder from an angle grinder with detailed photos, drawings and videos of all necessary operations. The result should be the following design.

Preparing for work

Before we start manufacturing, we need to prepare the tool that we will need for work, these are:

• Sawing machine (circular saw or jigsaw machine for sawing;
• Jigsaw with files;
• Grinding machine or grinder;
• Milling machine;
• Drilling machine.
• Various hand tools - screwdrivers, pencils, pliers, etc.
• Vacuum cleaner.

In addition, you need to plan and prepare the necessary material, fasteners and necessary elements:

• Plywood 20-35 mm;
• Varnish;
• Bolts and nuts;
• Sealed bearings;
• Sander belt.

In the article “Jigsaw machine for sawing” there was a table with background information on the thickness and ply of plywood. Below we provide another reference - the types of veneer of the outer layers of plywood:

No visible blemishes or processing defects

Main structural elements

Our grinding machine consists of the following elements:

1. Bulgarian herself;
2. Base;
3. Movable bracket;
4. Drive roller (on the gearbox shaft of the angle grinder);
5. Two driven rollers - one on the base, the other on a movable bracket.

Preparation of the grinder

In our case, we didn’t take a new grinder, which means it needs to be cleaned. It is necessary to remove all excess grease and remove visible defects and debris with a brush. This stage does not carry a functional load, but thanks to cleaning, nothing will interfere during work, and performing certain stages of work will be more convenient and much more enjoyable.

In what cases do you need a grinder?

A belt sander is an absolutely necessary thing if you need to perform any of the following operations:

• remove burrs that remain after any type of material processing;
• remove rust on the metal surface, which will then be primed and painted;
• straighten the edges of the material damaged during the cutting process;
• remove seam defects after welding work;
• remove the so-called flash that remains on the product during the casting process.

A mini grinder made from an angle grinder can easily cope with all such problems. Moreover, the device, which has a compact size, does not require a specially equipped workshop for installation. You can use it in a garage, in a barn, or even in the kitchen of an ordinary city apartment. In this case, however, you will have to take care of effective sound insulation so as not to provoke a scandal with your neighbors.

Making a grinding machine

Base

We begin to manufacture the base on which the movable bracket and rollers are attached. The future workpiece should be marked for fastening the sanding machine belt as shown in the picture below. All dimensions of the part are adjusted exclusively to the dimensions of the grinder. It is important that the part fits exactly under the angle grinder and fits tightly to the body, since the sizes of angle grinders are different, the dimensions may also differ.

And then start cutting out the desired part. This work requires precision, especially when drilling a hole for the gearbox shaft.