Homemade jigsaw for wood. How to make a jigsaw machine with your own hands? The structure of a jigsaw machine - what lies inside

In today's article we will look at extremely interesting homemade product, which will surely come in handy for every DIYer. Namely, today we will look at how to make a jigsaw. This tool is very useful on the farm and it itself very often comes in handy when building any homemade items. Today we will look at one of the cheapest and available options assemblies. The homemade product will consist of the cheapest and most available materials, which you probably have at home, and if not, then you can easily find them in your city, or you can order them from our Chinese friends. In general, the homemade product is very interesting, so let’s not delay with a long introduction, let’s go!

For this homemade product we will need:
- 775 class commutator motor. (these are usually installed on professional RC models).
- Wires
- Some kind of plastic flywheel (large flat gear)
- PVC pipe, the internal diameter of which will be equal to the external diameter of the electric motor
- Corner for PVC pipes
- Jigsaw blade
- Small metal plate
- A small (but thick) board
- Thick wire (or, for example, a bicycle spoke)
- Button
- Power connector
- Power supply (12-24v 1-2A)
- Not a large sheet of laminated MDF panel or plywood

We will also need the following tools:
- Soldering iron
- Solder
- Marker
- Hot-melt adhesive
- Wire cutters
- Pliers
- Round nose pliers
- Cold welding
- Self-tapping screws
- Screwdriver
- Heat shrink
- Drill and core drill (with a diameter equal to the diameter of the engine)

First, we need to select the most important structural element, namely the electric motor. In our case, it should be with a large number of turns (such an engine has a large torque). And also, in order for the homemade product to serve you for a long time, you should take into account that it is desirable that the electric motor shaft rests on bearings, and not on bushings, as is often the case. We will also need some kind of flywheel; for this, the author of the homemade product took a large and flat gear that he had.

A jigsaw is a tool without which it is now simply impossible to perform many works on processing wood and materials in which it is used. Being compact and light in weight, a handheld portable jigsaw is capable of cutting out products of very complex geometry from a workpiece.

The jigsaw is very convenient to use and also provides very precise and thin cut. If you don’t want to spend money on a purchased jigsaw, you can make your own at home.

The lightest product

The jigsaw table itself can be made with your own hands in a short period of an hour. The advantage of the manufactured design will be its simplicity. It can easily be mounted on a tabletop or workbench and, if necessary, can also be easily disassembled. Disadvantage homemade design can be considered its small area.

The simplest product consists of the following parts:

1. Plywood.
2. Mounting screws.
3. Clamps.

The working basis of the machine can be laminated plywood, in which it is necessary to drill holes for installing fasteners and for the saw itself. Plywood must be at least 10 millimeters thick. At the same time, you may also have to make holes in the base of your power tool for mounting screws.

A homemade structure can be attached to the workbench using clamps. Please note that the heads of the screws for fastening must be recessed into the surface of the sheet so that they do not interfere with you while working. Such a machine can easily handle the processing of small workpieces up to 30 millimeters thick. You can easily find a drawing of this type of machine on the Internet, and then assemble it yourself at home.

Another variant

This option consists of the following parts:

1. Bed made of chipboard.
2. Tube for vacuum cleaner.
3. Laminated plywood for the machine cover.
4. Confirmants.

There is a second option for a stationary device for working with wood material, which is assembled from a larger number of spare parts, but making it will not be difficult. The frame is made of chipboard and consists of a back wall and two sidewalls. To make it easy to get to the power button, the machine has no front wall.

In the back wall you need to do it yourself drill holes for the vacuum cleaner tube and cord. The cover for the machine can be made from laminated plywood 10 millimeters thick. The entire structure can be tightened with confirmants. The jigsaw can be secured in the same way as described above in the first case.

On a machine made according to this option, it is possible to process more massive workpieces, however, when working with a thick workpiece, the jigsaw saw can go in both directions and lean back. At the same time, cutting accuracy deteriorates. This drawback can easily be eliminated with your own hands by installing a bracket on a homemade machine that will serve as a support.

The jigsaw blade will move between two 11mm bearings, which must be screwed to an L-shaped strip made of steel. The back of the saw will rest against the wall of the bracket itself. This design will prevent your jigsaw blade from deviating from the intended path.

The bracket must be attached to the frame, made of 50 by 50 millimeter bars. It can be lowered or raised depending on the length and thickness of the wood being processed. To do this, the frame itself, together with the stop, must not be firmly attached to the side of the machine, but pressed against it with a hardboard, steel or textolite plate. Install vertical stand frame between the hardboard and the frame.

The machine can be more convenient if you mount an additional limit bar on it, with which you can cut the material into workpieces of the same length and thickness.

The limiter is attached to the machine using clamps. His made from wooden beam , aluminum or steel corner. For convenience, you can also install a bar on the slide, which must be secured to the sides or bottom of the tabletop.

Table for a jigsaw made of chipboard

To make this jigsaw table, you must have a certain carpentry skill, since when connecting its frame to the legs, it must be made into a tongue and groove. The tongue and groove itself can be replaced with a connection using dowels, wood glue and self-tapping screws.

The machine cover must be made liftable to facilitate access to the tool when replacing it. In order for the machine to be multifunctional, it is necessary to provide space for mounting a manual milling machine.

The table is assembled from the following materials:

• block 80 by 80 millimeters;
• block 40 by 80 millimeters;
• laminated plywood or laminated chipboard sizes 900 by 900 millimeters.

Measure the distance between the legs, it should be from 60 to 70 centimeters. The bars for the legs and drawers will be obtained if you cut the bars 80 by 80 millimeters lengthwise. You can choose the height of the legs themselves at your own discretion, it all depends on how comfortable it will be for you to perform work on the machine.

At each end of the legs and drawers, it is necessary to drill two holes for dowels. The same holes must be made on the sides of the legs. Coat the dowels with glue half their length and insert them into the ends. After this, assemble the entire frame. It will turn out to be non-separable. After checking and possible corrections, it is tightened tightly.

All surfaces at contact points must be coat with glue. Use self-tapping screws for additional structural strength, which must be screwed through holes prepared in advance for them.

The cover must be attached to one of the drawers using hinges; to do this, a slot must be made in it to facilitate removal and installation of the jigsaw. In the back of the tabletop, you need to screw two strips with a pre-selected quarter into which the sole of the power tool should fit.

Holes must be made in the strips, into which bolts or clamping screws must then be installed. A jigsaw mounted under the tabletop will be able to cut thicker material if a recess is made in the lid for its sole. The easiest way to make this deepening is using a milling machine.

The resulting table will be very simple and spacious, so required strength its lid can be provided with a large thickness of laminated chipboard or plywood. Use sheets of 20 millimeters or thicker.

Jigsaw using thin saws

Since when cutting complex patterns in plywood, a jigsaw is not well suited for this, you need to take a thin file. It can be fitted to hand power tool, using the original device.

We also attach the jigsaw to the tabletop, but the thin file needs to be tensioned, since it will not be enough just set on a pendulum. To facilitate the process of tensioning the file, it is necessary to make a rocker arm from a block.

The tension of your canvas is ensured by a spring. Place its lower loop on the transverse pin. The upper loop must be inserted into the adjusting screw, which changes the tension force of the damper. All wooden blanks for homemade machine made from hard wood.

Since a jigsaw machine does not have the ability to fasten a blade with a thin section, you can remake a piece of an old saw by first drilling a hole in it and adding a screw with nut and clamping plate.

A vertical slot must be made in the rocker arm into which a second steel plate must be inserted. It is attached to the rocker with screws. The upper part of the file must be attached to it in the same way as the lower one. To make it easier for you, you can use scraps from an old jigsaw to make the plates.

A very fast and fairly compact tool, it can be incredibly useful for making straight and curved cuts. Appearance and the functionality of the jigsaws sold are impressive, making one believe in the incredible complexity of the design of these devices. In fact, to recreate such a mechanism, it is enough to understand the principle of its operation, have instructions and the desire to do something with your own hands. It is not at all necessary to be an expert in technology with many years of experience (although this quality will not be superfluous). Next, we will conduct a detailed analysis of the average jigsaw model with drawings, and provide two detailed manuals on self-production similar tool.

How does an electric jigsaw work?

The basis of any electric jigsaw is the following components: an electric motor, a gearbox and a rod with a saw blade clamp. To the secondary ones, but no less important elements, include the start button, support roller, cooling fan and soleplate. As additional functionality, many models have a pendulum stroke, a dust collector, lighting and a laser guide. We will not touch upon the operating principle of the latter, and will move on to a description of the interaction of the main elements of the mechanism.

The high-frequency movements of the jigsaw saw blade originate from an electric motor, started by pressing a button or directly from the network. Rotation is transmitted along the shaft to a special “gearbox” mechanism with an eccentric, which interacts with the rod, forming a reciprocating movement. The fastener installed at the end of the rod holds the saw that makes the cut. To minimize the load on the rod with the gearbox, the rear edge of the saw blade rests against the support roller. In this way, all components of the device are involved to perform the main task of sawing all kinds of materials.

Electrobolic drawings

Making a jigsaw with your own hands

For a craftsman who understands the principle of operation of any mechanism, it will not be difficult to reproduce it, especially if he has detailed instructions. The bicycle has already been invented, and to make it yourself, it is enough to have a set of necessary parts and tools. The guide below will demonstrate in detail how to make a jigsaw with a complete listing of the elements and tools required for the job. The product being created is not a stationary device, but a mobile saw with an electric drive. The device has not much power, but it is enough to cut wood up to 5 mm thick.

Required materials:

• Wooden block - 150x75x25 and 75x25x25 (width, height, thickness in mm)
• Metal plates – long and rectangular (as in the photo)
• Jigsaw blade with U-shank
• Electric motor RS-540 12V (any similar one can be used)
• Circuit closing button
• Nozzle gas stove
• Bicycle spoke
• Plastic circle with a diameter of 260 mm
• Plywood - 120x50x5
• Set of self-tapping screws, bolts and nuts

• Hacksaw for metal
• Triangular file
• Pliers (2 pcs)
• Screwdriver or drill with a set of drills
• Metal scissors
• Pencil

Assembling the jigsaw will begin by cutting out the handle from a larger block. To do this, just cut it, giving the rectangular board an L-shape, as in the photo. The dimensions of the cut part are set “by eye”, based on the preferences and size of the operator’s hand.

Homemade jigsaw for polystyrene

• Plywood 200x200x5 mm
• Wooden block - 120x50x50
• Spatula or sheet of metal, 1 mm thick
• Metal terminal for connecting wires
• Metal rod (spoke)
• Hacksaw blade
• Electric motor (DC) 12 volt
• A piece of thin, flexible plastic
• Fastening metal corner
• A piece of PVC pipe as a handle
• Contact closure button
• 12 volt power supply with DC plug
• DC power connector
• Self-tapping screws, bolts and nuts

By instruments:

• Needle file
• Metal scissors
• Pliers
• Drill or screwdriver with a set of drills
• Core drill for wood with a diameter of 44 mm
• Soldering iron
• Thermal gun

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Wood carving and sawing beautiful figures — exciting activity. A person’s inclination towards this creativity manifests itself from early childhood and often remains throughout life. Everyone knows that this is difficult and rather painstaking work. It always requires not only special care, but also a lot of time. To eliminate this drawback and make your work easier, you need to automate the process. To do this you just need to purchase jigsaw machine in the shop. However, such a device is not cheap on sale and not everyone can afford it. But this problem is easy to solve if you make a device for sawing and carving wood yourself.

For this you will need materials:

• drawings or diagrams;
• wooden blocks;
• short boards;
• pieces of old plywood;
• simple nails or screws.

Tools:

• medium sized hammer;
• regular hand saw;
• small plane;
• jigsaw;
• sharp axe.

Scheme or drawing

Before you begin assembly, you need to draw a diagram or make a drawing of the jigsaw yourself. It’s rare that anyone manages to complete a high-quality document at a good professional level with their own hands, but it doesn’t matter. You can always find a suitable drawing on the Internet and use it to assemble your jigsaw. Often for simple homemade device inventors use only a mini-circuit, simply drawn by hand. This is quite sufficient when you need to construct a simple device for figure sawing from plywood and wood.

Stationary option

There are often times when it is necessary to make perfect cuts in plywood or wood strictly vertically. This kind of work is simply impossible to do even with a factory jigsaw. A device that is always in your hand will produce deviations, and the edges of the slots will never be perfectly shaped. To make them straight and even, such work should only be done on stationary machine, where the device for sawing in wood or plywood is firmly and securely fixed on the table surface.

To design a stationary jigsaw for figured cutting on plywood and wood, you must first prepare the material for building the table. It will provide a strong support for the machine and will also provide ease of use. All this is easy to make from wood. First you need to find suitable bars, mark them and make a table frame from them. After this, cut off identical boards, lay them on top and secure them with ordinary nails or screws. To ensure that the surface is sufficiently smooth, it is advisable to lay plywood on the table. It will not only make the surface smooth, but also create additional rigidity.

Next, you will need to install the unit itself for figure sawing from wooden blanks. Of course, you can make the entire mechanism out of plywood, but it will take too much time. The easiest way is to use a very simple method, where a standard factory device is installed to operate the saw - a jigsaw. To do this, you only need four small corners and a few screws. And then everything is done very simply: find the center of the table and drill hand drill hole through. Its diameter should be such that a standard factory file can pass through it freely. electric jigsaw.

When a file is inserted into this hole and the entire device lies tightly on the table, you will need to draw a pencil around the duralumin support. Then use a jigsaw to cut a hole so that the body itself fits through it upside down, and its support bar sits tightly at table level. All that remains is to place small corners at the bottom and secure the platform with screws. At this point, the stationary jigsaw machine is considered built and you can safely begin work.

Sewing machine equipment

Today, many inventors successfully use modern methods, which differ good quality and precision in work. Particularly notable is the jigsaw machine using a band blade. However, despite the very high speed, not everyone can do it. For this reason, it is worth choosing a simpler method using an outdated sewing machine. Although its device has already served its useful life, this will not affect the operation of the homemade machine. In addition, this is a fairly common and inexpensive option that does not require too much expense.

For this homemade machine design you will need:

The construction of a table for a stationary jigsaw was discussed above, so we will not consider it further. But it is worth noting that a workbench can be perfect for these purposes. In addition, many old sewing machines already have a table-like design, as well as a mechanical drive. Therefore, here we will analyze only the main mechanisms that need to be changed.

Rework

Converting an old sewing machine into a tabletop jigsaw is not too difficult. First you need to change the rear mechanical part, in which the needle is fixed. To do this, you need to file the shank on the side so that a standard blade from a factory electric jigsaw fits freely into the clamp. The hole in the bottom plate, which is intended for the needle, also needs to be enlarged. This is easy to do with a hand drill with a diameter slightly wider than the file.

Often the clamping foot on a sewing machine gets in the way when cutting thick plywood or wooden blocks. It is easy to remove by unscrewing the side locking bolt with your hands or a screwdriver. As the jigsaw works, sawdust will remain. They are easy to assemble if you place a small box underneath. But before that, you have to remove the shuttle along with the entire device that will interfere. Removing it is easy with only a small adjustable wrench or pliers.

Mechanical drive and motor

It is clear that turning such a machine by hand will be very difficult and inconvenient. Therefore, it is necessary to install an additional motor with a mechanical drive. Literally all samples sewing machines They have a pulley in their design. A motor is connected to it using a belt, which is turned on with your foot. If such a unit is not available, then it is not difficult to make it yourself. To do this you just need to find Electrical engine suitable power. And then firmly attach it to the table using simple clamps- and you can actively get to work.

In life home handyman, periodically there is a need to make figured and simply decorative cuts, including inside the workpiece. Gasoline, circular and regular hand saws they cannot cope with this task, due to their design features. To solve this problem use manual jigsaw, specially designed to perform such operations. This tool undoubtedly copes with its task, but when working with large volumes or large materials, it definitely loses to its more professional brother - a jigsaw machine.

Purchasing a brand new, shiny, and functional benchtop jigsaw is absolutely effortless. Store shelves are filled with products from various manufacturers aimed at professional and amateur work. At first glance, the stationary jigsaws on sale seem to be very complex in terms of design, the assembly of which is carried out only by selected expert technicians. In fact, this is quite simple devices that you can do yourself if you have the desire and step by step instructions. And if the first point depends only on you, with the second we will definitely help and provide detailed guide By self-assembly homemade jigsaw machine.

Scope of application

One of the main features for which the wood jigsaw is so valued is the ability to carry out internal cuts on the workpiece without damaging its contour. Not the least role in usefulness of this device What plays into its ease of use is that both hands of the operator are free and can best control the position of the product on the working surface. To everything else, it is worth adding the accuracy of the resulting cutting line, as well as the ability to work with plastic and metal. All of the above advantages make a tabletop jigsaw the best tool for sawing decorative elements.

The working principle of a jigsaw machine

1. Stable base
2. Electric motor
3. Crank assembly
4. Desktop
5. Upper and lower arm
6. File clamping device

The whole process originates from the motor, which transmits rotation to the crank mechanism, which converts the circular motion into reciprocating motion. The connecting rod, which is part of the mechanism, transfers movement to the lower arm, causing it to move up and down. The entire structure described above is located under the desktop. The upper lever is located above the table surface and is connected to the lower spring, which serves as a saw blade tensioner. At the ends of both levers opposite to the spring there is a clamp where a saw is installed to cut the workpiece.

For greater clarity of the entire process described above, we present the following drawing of a jigsaw machine with the function of a saw blade tension regulator. Though this opportunity and is one of the main ones, we did not present it in the description of the design of an elementary device, since it is possible to work without it.

Jigsaw machine from electric jigsaw

1. Chipboard sheet (3 pcs): 600x400x20 (length, width, height)
2. Spring
3. Profile pipe (1.5 m): 30x30x2 (length, width, thickness)
4. Jigsaw
5. Flat washers (4 pcs)
6. Bolts for washers and connections
7. Self-tapping screws for assembling the tabletop

Required tools:

• Welding machine
• Grinder with a metal disc
• Screwdriver

1.First of all, you should assemble the base of the future machine. To do this, take 3 prepared sheets of chipboard or other thick enough wood material and make a structure out of them that looks like the letter “p”. We fix it at the edges with self-tapping screws. For greater reliability and stability, you can make a back wall.

6. When the file is clamped in both fasteners, all that remains is to tension it and start working. The implementation of such a function is simple. We attach the spring to the back of the movable lever using a bolt and nut, and fix the opposite part to the tabletop to the required length. Determining the tension is very easy. To do this, just run your finger along the file, like a guitar string. A high sound will indicate that the device is operational.

Homemade jigsaw from a drill

1. Wooden slats (2 pcs): 500x40x20 (length, width, thickness)
2. Chipboard for base: 400x350x20
3. Chipboard for work surface: 320x320x20
4. Chipboard strips (2 pcs): 350x50x20
5. Aluminum sheet: 400x400x1
6. Drill (screwdriver)
7. PVC pipes (4 pcs): 300 mm in length
8. Self-tapping screws, bolts, washers and nuts
9. Wood glue
10. Steel rod, 6mm diameter (for crank assembly)
11. Spring

Required tools:

• Screwdriver or drill
• Pliers
• Metal scissors
• Hammer

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