TOP 6 do-it-yourself drawings for a cutting machine from an angle grinder

TOP 6 drawings will help you make a cutting machine from an angle grinder with your own hands without errors and extra costs. Answers to frequently asked questions, recommendations.

TEST:

Is it possible to make a homemade cross-cutting machine from an angle grinder: a verification test with answers based on the materials presented

What switches are installed for emergency stop of the machine?

a) manual;

b) hand and foot.

Which angle grinders are suitable for creating a cutting machine?

a) pneumatic and electric;

b) battery-powered.

Minimum power of the electric motor of an angle grinder for a cutting machine from an angle grinder:

a) 400 W;

b) 900 W.

What machines can be made based on angle grinders?

a) trimming, cutting;

b) grinding, milling, sharpening.

Where can you place the grinder in the cutting machine?

a) above the tabletop;

b) under the tabletop.

Answers:

The correct option is b). Foot switches are more convenient because they operate quickly.
Theoretically, there is enough power in all three options. In practice, a) - electric and pneumatic models are used. A battery is not needed for a stationary machine. For a pneumatic drive, you will have to purchase a compressor of appropriate capacity.
900 W or more. Correction is made if workpieces made of relatively soft materials are expected to be processed, or at high speed.
Both options are correct. A powerful grinder is suitable for creating various machines at the household and semi-professional level.
Two mounting options are allowed. Experts prefer the top one.

An electric grinder performs many different work operations. To reduce labor costs while increasing accuracy, it is used as the basis for the machine.

“Bulgarian” is a common name for an angle grinder (angle grinder). By changing the disk, this universal device can be converted for cutting and performing other work operations.

Bulgarian women

How to make a cutting machine step by step with drawings: 4 reasons in favor of implementing the project

In order not to doubt the correctness of the decision made, study the following facts:

without reliable fastening, the workpieces vibrate, increasing the risk of damage to the disk;
it is difficult to manipulate a heavy tool with high precision while maintaining the perpendicularity of the cut;
difficulties increase when processing thick products, when creating a large batch of similar parts;
Using both hands significantly increases the likelihood of injury.

A high-quality machine is necessary to solve the noted problems and improve productivity. It is created according to the following algorithm:

clarify the purpose and scope of work;
study drawings of factory analogues and homemade products, choose the appropriate option;
compose a set of design documentation with a list of necessary purchases;
carry out assembly according to the approved plan with performance testing.

Marking

The next stage of preparing parts for welding is carried out manually or using special devices. The simplest devices are a core, a metal ruler and a caliper. The metal surface is pre-primed so that the marks are clearly visible. In continuous production, templates are made, applied, and traced.

There is a distinction between the concepts of “basing” and marking. The first is the creation of a preliminary contour, the second involves punching around the entire perimeter and marking. Basting is needed when using templates. It is first outlined with a scriber, and then the contour is passed with a core. When marking manually, core punching is carried out immediately.

Marking workpieces manually is difficult and time-consuming. Preparation and assembly of workpieces using optical or dimensional cutting is preferable. Marking and marking machines have been created for marking metal; they operate on the basis of optics according to a given program. The core moves quickly, the marked sheet metal leaves the machine at a speed of up to 10 meters per minute.

The marking stage is carried out manually or using special devices

TOP 6 drawings with explanations for making a homemade metal edger

It is not difficult to create a standard circular saw if you attach a grinder under a work table with a slot. It is necessary to consider a guide system for high precision movement of workpieces.

Picture No. 1. Schematic diagram

Look at picture No. 1 to see what a typical edger looks like. Here the angle grinder is mounted on a movable hinge, which somewhat complicates the design. This scheme has several advantages:

simple and reliable fastening of the workpiece;
the significant weight of the upper part will help to use less effort when cutting workpieces;
if necessary, hand-held electric tools are dismantled to perform work operations as usual.

Picture No. 2. Stand for an angle grinder
This power frame is assembled from standard steel angles and pipes with a square cross-section. Welded joints are more durable. But it is also possible to create a prefabricated structure using screws and nuts.

Picture No. 3. Assembly drawing of a pendulum saw

This project can be used as an example for making a high-quality metal edger. Equipping with wheels makes it easier to move a heavy product.

For your information! In other racks it is necessary to install screw supports. With their help, unevenness in the floor covering is compensated.

Picture No. 4. Pendulum circular saw
Look at the picture for an example of a machine for processing wood. This technique is suitable for cutting large workpieces. It is necessary to choose a grinder with sufficient power so that it is enough to work with large-diameter discs. A load is secured on the reverse arm of the lever (instead of an electric motor, as in the drawing). The weight and mounting location are selected in accordance with personal requirements and the characteristics of a particular design.

Picture No. 5. Drawing of a circular saw

This machine can be converted to be mounted at the bottom of an angle grinder. If longitudinal sawing of wood is planned, such an engineering solution will be optimal.

Picture No. 6. Design of a factory miter saw for wood

Look at Picture No. 6. You can use it to make a set of drawings with your own hands. It is recommended to pay attention to the spring, which lifts the working unit to its original state. A rotary table with measuring devices will help create a machine with increased tolerance requirements.

Picture No. 7. Drawing of the frame

In the manufacture of this part of the machine, thick metal is used. This solution increases cost and weight, but extends service life, increases reliability, improves fastening of hinged elements and processing accuracy.

Desktop Design Requirements

The cutting unit must have a working table of optimal dimensions. The required parameters are: 701*1000*900 mm. The table is welded from a corner measuring 25*25 mm, after which it is covered with a steel sheet having a thickness of 3 mm. Slots are made in advance in the sheet at the point where the circle rotates.

A clamp with a rotary clamp and a rotary stop are fixed at the workplace. Such a homemade mechanism allows you to cut products at an angle and perpendicularly.

Any cutting machine for metal requires compliance with a number of conditions during its installation:

adjustment of the rotation angle is required (its location must be perpendicular to the surface of the desktop);
the master needs to protect his hands from damage by installing covers around the disk and rotating elements;
it is important to calculate the rotational speed of the circle in advance;
equip the handle with an emergency stop button, which, when pressed by hand, instantly stops the operation of the entire mechanism;
Place the wheel feed force in the cutting zone.

Rotation angle adjustment

Converting an angle grinder into a machine step by step: 10 assembly stages, electrical diagram for drawings

To create a machine yourself, you need to choose a design that matches your existing skills and capabilities. The easiest way is to assemble a machine from blanks created according to drawings in a specialized metalworking workshop. Otherwise, you will have to master welding technologies and purchase the necessary equipment.

Below is a step-by-step self-assembly algorithm with useful comments:

After approval of the project parameters, the necessary materials, workpieces, tools and replacement attachments are purchased. The shopping list is determined based on the prepared set of design documentation. Compliance with current standards is not required in this case. However, all important details must be included, as in the examples above.
Blanks for the power frame are cut. The table is made from sheet steel with a thickness of at least 5 mm.
A transverse shaft is welded to the pendulum arm. When creating this unit, the perpendicularity of the parts is carefully controlled.
A grip in the shape of the letter “P” is suitable for attaching an angle grinder. A hole for bolts is made in its side parts. With these fasteners, the hand tool is rigidly attached to the machine bed. Choose a fairly strong part of the grinder body.
Additional fixation is provided using a metal clamp. All of the above mounts are made rigid to improve accuracy.
The swivel bearings are pressed in. Instead of standard factory-made units, steel pipes with thick walls of suitable internal diameter are used.
The assembled units are fixed on the axis of two sides.
The pendulum is attached to the platform by welding. To avoid damaging the bearings, it is recommended to limit the temperature rise. To cool, use a cloth soaked in water.
Weld a block with a mount for an angle grinder. Reinstall the angle grinder, protective devices, and return spring.
They check the quality of the assembly, the reliability of the fastenings, and the functionality of the pendulum. Connect the machine, check the functionality first at idle and then in operating mode. The groove in the table is cut with a disk of appropriate width.

Picture No. 8. Connecting a magnetic starter with shutdown buttons and a protective thermal relay.
Look at Picture No. 8. Here is an electrical diagram for the drawings that improves the protection of equipment from overheating. It is also useful for quick emergency shutdown. One or more buttons for breaking the corresponding circuit are installed in a convenient place in the machine body. Foot operated switches are also used.

Do-it-yourself pendulum saw for wood - All about timber and woodworking

When working with metal or wood, the need often arises to make an even cut at a certain degree. It is almost impossible to do this the first time with an ordinary grinder; for these purposes it is worth using a pendulum saw.

A pendulum saw is a special type of tool that is designed to quickly and accurately cut various materials. Most often wood or metal.

It looks like a small machine with a cutting tool installed on it. The disc is attached to a pendulum-like device.

Thanks to this, the mechanism performs pendulum movements, that is, reciprocating, which allows you to make an even cut.

This saw can be considered a type of circular saw. The difference lies in the design . In a circular saw, the motor and disk are attached to the machine in a stationary state, while in a pendulum saw they move along with the mechanism.

Such a tool is an indispensable device in any production. The saw allows you to make precise cuts in almost any material at the desired angle. The cutting element is represented by an abrasive disc. With its help you can saw various metals, wooden blanks, plastic products, porcelain, earthenware and other materials.

This is a very dangerous tool, so its use is only possible if all safety rules are followed. For protection , such machines are equipped with a protection system. Increased safety is a must for both industrial and home use.

The cost varies across a wide price range, so it is easy to choose a model to suit your own requirements. If necessary, you can assemble such a saw yourself if you have the necessary materials.

Every self-respecting owner, accustomed to doing everything with his own hands, strives to equip his home workshop as best as possible. And to work normally with wood, you need to have a good saw and preferably more than one. Today there are a lot of similar tools on the market, and it is often difficult for the average person to figure out what exactly he needs.

This article is devoted to the topic of choosing such a tool.

Photo of a manual circular saw.

First of all, it should be understood that all tools intended for cutting and processing wood can be divided into two main areas. These are hand saws or hacksaws and tools powered by an electric or some other drive.

Machine reinforcement and other operator protection

A reliable power frame is the basis of safety. Additionally, they cover moving parts and prevent unauthorized persons from accessing the work area. When processing parts, goggles, masks, mittens, and other personal protective equipment are used.

In addition to the reliable strengthening of the machine, a certain location of the grinder serves to protect the operator. For safety and to prevent damage to clothing, it is installed so that the sheaf of sparks during operation is directed in the opposite direction from the person.

Disc cutting machines

In practice, craftsmen make machines of three types: belt, pendulum, disk. The first type is the most difficult to make in a home workshop. The best option is a disk-type metal cutting machine.

Band saw machine

These units include:

cutting disc;
pendulum;
Desktop;
Electrical engine;
drive mechanism.

For a standard workshop, the sufficient power of the engine used is 1.5 kW. The power of the electric motor depends on the type of metal used. If metal with thin walls is used during operation, then a power of 1.5 kW will be sufficient for such an engine. To carry out frequent work cutting pipes from profiles, you will need a 3 kW unit.

An important indicator of the engine is the number of revolutions it makes in the process of cutting a metal part. The recommended speed is at least 3000 per minute. At low motor speeds, the cutting disc is not able to operate optimally.

Particular attention must be paid to the diameter of the circle used. Experts advise choosing circles with a diameter of 300-350 mm with an electric motor power of 2 kW. With the specified parameters, the recommended engine speed is 3000-4400 rpm. As the indicator increases, the circle is destroyed, and at low speeds it quickly overheats and wears out.

All 5 options for homemade grinder machines for various purposes

The drive of tools in this category is highly powerful. A high-quality grinder is small in size, durable, and resistant to high workloads. Some models provide speed control. Modern angle grinders are equipped with overheating protection as standard. Such products are a good basis for the manufacture of homemade machines for various functional purposes.

Picture No. 9. This homemade cross-cutting machine is suitable for processing granite and marble slabs

Grinder lathe

Picture No. 10. Diagram of a wood lathe made from a grinder.
The standard design is used here. The only excellent component is the device for transmitting force to the spindle. A gearbox is needed to regulate the speed and torque within the appropriate range.

Homemade wood milling machine with your own hands, other types of equipment

Picture No. 11. To secure different tools, a do-it-yourself wood milling machine must be equipped with a universal head

For your information! This device can be attached to the electric motor shaft after dismantling the standard gearbox.

Picture No. 12. Quick solution to problems
Look at Picture No. 12 shows how you can assemble a full-fledged sawing/circular machine from available materials in 15-20 minutes. With its help, it is easier to ensure precise processing of wooden workpieces compared to using hand-held power tools.

Picture No. 13. From the picture it is not difficult to understand the principle of operation and design of the grinding/surface grinding machine

3 other machines: sharpening machine, for sharpening chains and cutting bricks

Picture No. 14. Sharpening machine
Here, potentially dangerous places are protected from damage by sparks using strips of foil. A temporary, but inexpensive and quick solution to a practical problem.

Picture No. 15. When equipped with a suitable disk, such equipment is used for cutting brick, ceramic tiles, natural/artificial stone

Picture No. 16. Rigid attachment to a durable tabletop turns an ordinary grinder into a convenient machine for sharpening chains

VERY DANGEROUS! In any case, we must not forget about the intended purpose of the equipment. If you are making a homemade metal cutting machine, you should consider strengthening the structure. Processing of plastic and wooden workpieces is carried out with less stress.

Do-it-yourself pendulum saw for wood

A pendulum saw is a special type of tool that is designed to quickly and accurately cut various materials. Most often wood or metal.

It looks like a small machine with a cutting tool installed on it. The disc is attached to a pendulum-like device.

Thanks to this, the mechanism performs pendulum movements, that is, reciprocating, which allows you to make an even cut.

This is a very dangerous tool, so its use is only possible if all safety rules are followed. For protection , such machines are equipped with a protection system. Increased safety is a must for both industrial and home use.

The cost varies across a wide price range, so it is easy to choose a model to suit your own requirements. If necessary, you can assemble such a saw yourself if you have the necessary materials.

For industrial production, models with an automatic disk movement mechanism are used. For home needs, a model with a manual mechanism is suitable.

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

This list contains brands whose equipment has received high ratings from ordinary users and professionals:

Bosch. It is famous for its reliability and well-thought-out small design elements. A significant limitation is the high cost even in the basic configuration.
Hitachi were initially expensive. But these days, 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 actual service life.

Sequencing

A homemade cutting machine must meet the design features of the disk device. Therefore, before starting work, it is necessary to make careful calculations.

The wizard's procedure is as follows:

The tool being manufactured belongs to the class of dangerous, so first you should take care of the manufacture of protective casings. They will cover all cutting elements of the structure.

The disk will rotate due to the motor, which must be connected correctly - to the cutting element through transmission, to the network through wiring.

The drive has a pulley; it must be mounted on a pre-prepared shaft. The engine and disk are located at the top of the structure, representing a pendulum.

The machine frame serves as a place to place the spark arrester and the workpieces themselves.

After mounting the pendulum to the frame, it’s time for the wiring.

After a trial run, if there are any shortcomings in the work, the elements are debugged.

The electric motor is the most important component, therefore the start and emergency stop elements must be installed in full accordance with the diagram.

How to avoid 4 mistakes during operation of grinding/surface grinding and other machines

In order for the machine to perform its functions for a long time, the following simple rules must be followed:

Do not increase the load more than planned.
Use suitable replacement tips as specified in the manufacturers' official instructions.
Remove dirt promptly to avoid deteriorating the air cooling mechanism.
Maintain the ideal state of electrical insulation and the functionality of protective devices.

How it works

This type of cutting equipment falls under the category of circular cutting machines. In its design, the cutting disc is mounted on a special frame, and the power source for the machine is the electrical network. The presence of the word “cutting” in the name indicates that the cutting disk is lowered during cutting, and after the end of the working cycle it returns to its original position.

The powerful cutting blade allows you to make cuts in a wide range of materials - not only metal and wood, but also tile, plastic, glass and porcelain. To work with wood, you can install a blade used in circular saws on the machine.