How to make a manual mini jigsaw. Instructions: How to make a jigsaw machine with your own hands from a jigsaw? Homemade jigsaw for polystyrene

Making a smooth, straight cut with a budget jigsaw is not at all easy. The reasons are simple - backlash in the jigsaw, removal of the file, little experience of the master. All these reasons can be easily eliminated with a homemade bed with guides for the base of the jigsaw.

The presented design allows you to cut wood, sheet metal, plastic and even paper at an angle of 30, 45 or 90 degrees. Solely for the sake of experiment, I cut an old magazine and, as you can see in the photo, the cut turns out almost like from a printing house.

Required materials and tools:

• Sheet of fiberboard or plywood 400 x 700 mm;
• Reiki 30 x 50 and 20 x 30 mm;
• self-tapping screws;
• Studs M6;
• Wing nuts M6;
• Furniture fittings (screw nuts) M6;
• From tools: jigsaw, screwdriver / drill, square.

Step-by-step instructions for making guides for a jigsaw

1. As a basis for the village, I took a WPV door from an old closet. You can use a sheet of plywood. On the basis, we mark the centers of future supporting elements from wooden slats - the distance from the edge should be equal to half the thickness, in my case 15 mm with a slat thickness of 30 mm.

2. Along the perimeter, we make holes for self-tapping screws with a diameter of 3 mm with chamfers so that the heads of the self-tapping screws do not protrude above the plane of the bed base. 2-3 holes on each side.

3. The next step is to fasten the base supports from 30x50 mm rails with wood screws. Supports are necessary so that there is free space for a jigsaw file.

Finished back side.

And from the working side.

4. Next, we make guides from two 20x30 mm rails and a 10 mm plywood base, as well as jigsaw travel stops from a rail of the same section.

The length of the guides must correspond to the length of the frame, and the width is selected individually for each jigsaw. Looking ahead, I will present a photo from which the principle of selecting the width of the plywood base is clearly visible.

5. First you need to dismantle the base of the jigsaw. Next, applying a 20x30 mm rail, we make markings for fastening with self-tapping screws.

6. We place the rail under the plywood sheet, while the markings should remain on top!

We make three holes for self-tapping screws with chamfers to “hide” the fastener caps.

Fasten the rail to the base of the guide.
7. We fix the second side rail only after trying on the base - it should walk between the rails freely, but without backlash. After “trying on” the rail, we fasten it temporarily from above with two screws, and then, by analogy with the sixth step, we fix the second rail, and unscrew the temporary screws.

8. We fix the travel stops with two self-tapping screws.

9. According to the markup, in the first step we make marks with a pencil along the edges of the guide.

According to the marks, we mark and make holes with a diameter of 6 mm.

10. Using the holes made in the previous step as a conductor, we make holes in the base.

11. Using a 10 mm drill, we make blind holes 10 mm deep.

12. We screw furniture fittings into the holes obtained with a hexagon. They can be purchased at hardware stores for.

We screw the M6 ​​studs into the futorki.

13. We do similar operations on the guide.

Then we drill the internal thread of the futorka with a 6 mm drill.
14. We mount the guide on the studs.

The move should be free, without jamming.
15. According to the marking, we make a through hole for the jigsaw saw blade (do not forget to take into account the protruding pin).

16. We perform a longitudinal cut with a jigsaw, it is important not to rush at this step, cutting at a low speed with the pendulum mode turned off (mark "0") in order to get the most even cut without removing the file.

17. Using a square, perpendicular to the guide, we fix the stop from the rail 20x30 mm.

Since childhood, we have been familiar with the technology of sawing with a jigsaw. The principle is simple - the fixed part is placed on a stand with a technological cutout, the cut is made by moving the file.

The quality of work depends on the hardness of the hands and the skill of the worker. In this article we will tell you how to make a jigsaw machine yourself. For…

Do-it-yourself jigsaw machine - drawings and video details

Since childhood, we have been familiar with the technology of sawing with a jigsaw. The principle is simple - the fixed part is placed on a stand with a technological cutout, the cut is made by moving the file. The quality of work depends on the firmness of the hands and the skill of the worker.

In this article we will tell you how to make a jigsaw machine yourself. For those who do not want to bother and are ready to buy a factory tool, an article review by Viktor Tagaev - 11 popular jigsaws will be useful

In this way, you can literally cut lace from thin wooden or plastic blanks. However, the process is laborious and slow. Therefore, many masters thought about small-scale mechanization.

A simple design from the last century

Even in the magazine "Young Technician" drawings were offered on how to make a jigsaw machine with your own hands. Moreover, the design does not imply an electric drive, the drive works from muscular strength, like knife grinders.

The machine consists of the main parts:

• bed (A)
• desktop (B) with a slot for the canvas
• lever system (B) for holding the saw blade
• flywheel (D), which is the primary drive pulley
• crank mechanism (D), combined with the secondary drive pulley, and driving the levers (B)
• pedal assembly (E) with a crank mechanism that drives the flywheel (D)
• saw blade tensioner (W)

With the foot of the foot, the master sets the flywheel (D) in motion. With the help of a belt drive, the crank mechanism (D), connected to the lower lever (B), rotates. A file is stretched between the levers, the degree of tension is regulated by a lanyard (G).

With a well-balanced flywheel, a sufficient smoothness of the saw blade is ensured, and such a home-made jigsaw machine allows you to massively cut out the same type of workpiece, saving time and effort. In those days, jigsaw saw blades were produced in the form of a flat tape with unidirectional action.

Therefore, to obtain patterns of complex shape, it was necessary to rotate the workpiece around the canvas. The dimensions of the workpiece are limited by the length of the levers (B).

From mechanical jigsaw to electric one step

The foot drive cannot give real freedom of action and uniformity of the sawing stroke. It is more reasonable to adapt an electric motor for a crank mechanism. However, if you use a desktop jigsaw from time to time, it makes no sense to make a stationary structure with its own motor.

How to use cold welding, and what is this term?

You can use household power tools. For example - a screwdriver with a speed controller.

Materials are used, literally from wooden scraps and old trash. The only critical part is the frame. It is better to make it from durable plywood with a thickness of at least 18 mm.

We make all connections on wood screws, the joints can be smeared with PVA glue. We assemble a support pedestal for the lever rod from the same material. The design of the support should not have backlashes; the subsequent accuracy of the operation of the entire machine depends on its strength.

The lever structure is assembled from wooden blanks. Of course, ordinary pine bars will not work here. You should use oak or beech. Don't let the cost of such material scare you - the legs from an old chair are perfectly used for levers. We cut out the straightest sections - and a strong lever mechanism is ready.

At the ends of the levers, we make longitudinal cuts, into which we install the attachment of the saw blade for jigsaws. The mount itself is a metal plate 2-3 mm thick with holes. The upper hole is for fixing in the lever, the lower one is used for clamping the saw blade. For convenience, we use wing nuts.

In the lower arm, a similar design in a mirror design.

We install the lever system in the bed. We connect the rear parts of the levers with a screw tie (lanyard). With its help, the tension of the saw blade is adjusted.

IMPORTANT! Before assembling the lever mechanism, it is necessary to determine the size of the canvases. The whole structure is calculated according to the length of the file. The levers should be as parallel as possible to each other.

For convenience, you can install a supporting spring. In addition to the main function, it will serve as a buffer that softens jerks during the reciprocating movement of the mechanism.

The crank mechanism is made of plywood 10-12 mm thick. To fix the axis of rotation, we use embedded bearings that fit into the prepared holes in the racks.

A gas generator with automatic start in case of a power outage will keep your home cozy

Racks are interconnected, forming a solid support for the flywheel. An ordinary bolt or stud is used as an axis. Strength class not less than 8.

We connect the flywheel to the lower arm using a connecting rod. It is made from the same plywood. To increase the length of the seat under the axle, we glue the two halves. The rods for connecting to the lever are metal.

We check the course of the trapezoid - the levers should move freely, the tension of the canvas does not change. The axis of rotation can be lubricated with grease. After combining all the axial connections, we produce the final fixing of the structure.

The next stage is the manufacture of a desktop with a rotary mechanism. A swivel arc with a slot is cut out of plywood.

We install the table on the bed, to tighten the rotary mechanism we use a wing nut or we make a convenient flywheel from wood. Turning the tabletop will allow you to cut the floor at different angles.

An electric screwdriver is used as a drive. The cartridge is connected to the flywheel axis, and we get a removable electric motor. You use an electrical appliance as usual, and when you need to start a homemade jigsaw, you connect a screwdriver to the flywheel axis.

We use a clamp with a variable force as a speed controller.

This simple fixture is made from a screw tie (from a table lamp or clamp) and a durable strap.

Drawings for manufacturing are not required, all structural elements are made "in place". It is convenient to work with the machine, despite the simplicity of the design.

You can make a machine according to this drawing, it does not change the essence. Everything has been tested and will work.

A very instructive video of the English craftsman. A detailed story showing drawings and a demonstration of making a jigsaw machine from plywood, and a screwdriver was used as an engine, you can also adapt a drill.

Stationary design for intensive use

1. 1. The bed is cut from a heavy chipboard (you can use old furniture), a stand for a lever structure made of textolite or hardboard. The levers themselves are made from square steel tubing. Blanks do not have to be bought, they can be found in your garage (shed) or at recycling points

Removable machines - what is it and how to make a device yourself

1. 1. Fasteners for the canvas can be made independently or picked up from an old jigsaw (hacksaw). Conventional saw blades for wood jigsaws are used. You can fix the clamps with screws, or with a tin and a soldering iron.

1. 1. It doesn't matter which device you take the drive from. The main thing is a serviceable electric motor and a workable gearbox. You do not need power, the gear ratios provide the torque

The design is assembled from regular elements of the gearbox. If necessary, the fastening of the connecting rod can be reinforced with an additional metal insert. All racks and fasteners are made of metal. So there are less vibrations, and there will be no wear.

1. 1. The material of the countertop does not matter, the main thing is rigidity and smoothness. It is necessary to provide for rotation around the longitudinal axis. Therefore, the working slot must be long

1. 1. To keep your hands free during operation, it is best to start the drive with a foot switch or pedal. You can use an old sewing machine attachment or make your own button.

1. 1. In order to make the jigsaw more accurate, it is necessary to eliminate the backlash of the blade at the cutting point. For this, a roller guide is installed.

It can be made with your own hands, again from improvised materials.

The lever supporting the guide is made movable so that the device can be used only when necessary.

1. The web tension in this design is carried out by a spring. The lower arm provides reciprocating motion, while the upper arm is only needed to support the saw blade.

Bottom line: you can make a jigsaw yourself without large financial costs. The main thing is to decide on the tasks, and choose the optimal design.

Alexander turned out a very interesting home-made jigsaw machine. For a step-by-step description with an explanation of the dimensions of the parts, see this video.

Do-it-yourself jigsaw machine for sawing: photo and video

This article will focus on the design of a home-made machine from a household electric jigsaw. Below are step-by-step instructions, photos, videos, as well as drawings and diagrams.

Introduction

There are a lot of design options - from the simplest, where the file just sticks out of the table top, to rather complex designs with guides, the possibility of sawing at an angle, when it is possible to set the file not only 90 degrees to the base, but change the angle (well, within reason, certainly). There are devices (machines) for sawing, that is, making a straight and even cut.

Such devices are increasingly being used because of their versatility and functionality. In fact, they are similar in parameters and purpose to stationary machines and have a strictly defined practical application in every workshop.

Purpose

A home-made jigsaw machine is a universal tool and is very popular, therefore it can be used both at home and in manufacturing enterprises - furniture workshops or carpentry workshops. At the same time, of course, you need to understand that the quality of work largely depends on the jigsaw and saw itself, and the design only helps and expands the capabilities of the hand tool.

What are they used for? It is very convenient to make various parts from sheet material on it, well, as a rule, these are all kinds of wooden materials:

• an array of wood;
• plywood;
• various boards (fibreboard, chipboard, MDF, etc.);

• plastics
• thin (soft) sheet metal

A distinctive feature is the use in the design of a standard (household) electric jigsaw, which almost every craftsman has, as a file mover. Through simple manipulations, it is fixed with a file up, so the master does not lead the saw with the tool, but moves the workpiece.

Advantages

The main advantage of such designs in comparison with a hand tool is the convenience in processing materials. In the process of processing, the master does not hold the tool itself (it is quite weighty), but the workpiece. This allows you to work with maximum precision. In addition, the presence of stops makes a smooth saw possible, and this is expensive.

Basic construct

As mentioned above, there are a lot of options for execution, however, it is necessary to highlight the most basic basic structural elements, namely:

• desktop (bed);
• drive - jigsaw;
• rocker for attaching the file and keeping it taut.

The machines differ in such parameters as power (determined by the power of a hand-held power tool), the working stroke of the file, and the method of its attachment. An important role, of course, is played by the overall dimensions of the product, including the area of ​​the working surface of the table, which allows better processing of certain workpieces. All other parameters (operating modes, laser illumination, etc.) are determined by the characteristics of the hand tool itself.

Step-by-step instructions for making a machine

In this section, we will analyze in detail each step of creating our future friend and indispensable assistant. The main stages of our work:

• Preparatory stage;
• Creation of blanks;
• Assembly.

It should also be noted what tools and materials we need.

Materials and structural elements:

• plywood 10, mm. Below is a table with plywood parameters.
• spring;
• a pair of bearings;

Tool:

• Sawing machine. It can be either a circular saw or a homemade jigsaw sawing machine;
• Grinding machine or grinder for processing workpieces, or alternatively, you can use a hand-held grinder fixed at an angle of 90 °;
• Drilling machine or drill with drills;
• Electric jigsaw with files;
• Construction vacuum cleaner.

as well as other tools.

For reference, the table on plywood parameters:

Plywood thickness, mm	Layers of plywood, not less than	Sanded plywood		Rough plywood
		Maximum deviation, mm	Different-thickness	Deviation, mm	Different-thickness
3 mm	3	+0,3/-0,4	0,6	+0,4/-0,3	0,6
4 mm	3	+0,3/-0,5		+0,8/-0,4	1,0
6 mm	5	+0,4/-0,5		+0,9/-0,4
9 mm	7	+0,4/-0,6		+1,0/-0,5
12 mm	9	+0,5/-0,7		+1,1/-0,6
15 mm	11	+0,6/-0,8		+1,2/-0,7	1,5
18 mm	13	+0,7/-0,9		+1,3/-0,8
21 mm	15	+0,8/-1,0		+1,4/-0,9
24 mm	17	+0,9/-1,1		+1,5/-1,0
27 mm	19	+1,0/-1,2	1,0	+1,6/-1,1	2,0
30 mm	21	+1,1/-1,3		+1,7/-1,2

Preparatory stage

• draw up sketches and make a drawing of the future product,
• make paper patterns of future elements and details
• stick templates on the blanks of future parts.

There are two ways to make templates - take a tracing paper and draw on it the kennels of the future workpiece. This has been done since ancient times, since nothing is needed for this, except for a ruler and a pencil. However, if you have a computer and a printer, it would be nice, of course, in A3 format, but A4 is also suitable (you just have to print several sheets and then glue them together), then the process of drawing with a pencil and a ruler can be replaced by drawing the outlines of blanks on a computer.

Then cut out with a clerical blade or just a sharp knife.

After that Once the template is ready, it must be glued to the workpiece.

Tip: You don’t need to glue it tightly, since in the future you will have to remove the template, and this will be difficult if you glue it “tightly”. Accordingly, you can stick, for example, on stationery glue, use glue stick or, as in our example, glue in the form of a spray.

Create blanks

At this stage, you need to do:

1. Cut blanks exactly according to the template,
2. Process workpieces - align the ends, remove burrs
3. Drill the necessary holes;
4. Make grooves with a file;
5. Drill seats for bearings;
6. Select the grooves with a router for the cover and the seat of the jigsaw;

The blanks are cut on a circular saw or on a homemade sawing machine from an electric jigsaw.

We process workpieces on a grinder or grinder sawing defects:

• burrs,
• bumps,
• chipped

We drill technological holes.

Tip: In order to avoid chips in the drilled blanks, you need to put a bar (or any other base) from below when drilling, firmly press the blanks against each other, as shown in the photo. In this case, there will be no chips.

We grind the grooves with a file.

We drill out the seats for the bearings with a feather drill or a Forstner drill.

We make the necessary technological grooves for the quick-release cover and for the seat of the jigsaw with a milling cutter.

Assembly

At this stage, you need to do:

1. Assembly of the main parts for glue;
2. Assembly of the main parts with screws;
3. grinding workpieces;
4. Lacquering;
5. SKD assembly;
6. Fix the base;
7. Fix the cover (frame);
8. Press in the bearings;
9. Install bracket;
10. Install spring;
11. Install the saw blade;
12. Making technological holes for jigsaw controls;
13. Making fasteners for sawing (upper and lower);
14. Installation of an electric jigsaw and file;
15. Adjustment of a file on two axes;
16. Manufacturing and insertion of the plate;

We assemble the parts for glue, we fix the parts with clamps.

Further fixation is carried out using screws and a screwdriver:

After assembling the parts, you need to grind to correct irregularities and remove burrs so as not to damage your hands during the operation of the future machine.

We assemble the main structure with screws.

We fix the base.

We fix the lid (tabletop).

Press in the bearings. Pressing can be done either with a clamp or a vice, or you can simply hammer it in.

We install the bracket. It should be noted that the mounting of the bracket must be done without excessive tightening of the nut - there must be free play. To do this, use a self-locking nut and only slightly tighten it.

Installing the spring shouldn't be difficult. You need to do as shown in the photo below.

For the future fastening of the file, you need to make a simple clamp in the form of a plate with two holes. It must also be installed on the bracket using a self-locking nut. Moreover, the backlash of the plate in the seat is very important because the bracket moves, and the clamped plate will hamper its movement.

Below is a sketch of the design of the upper attachment of the file.

Then it is necessary to make technological holes for the controls of the jigsaw, so that it is convenient to change the engine speed, you can access the start button and its lock. There is another solution that allows you to make it more convenient to turn on the tool - this is to place an outlet and a switch in an easily accessible place on the machine body, which would turn the power on and off in the outlet. We turn on the plug of the jigsaw cord into the outlet, and it turns out that we will turn it on and off using a switch installed in a place convenient for us. However, this is a matter of taste.

So, below is the manufacture of technological holes on the body.

Here are the controls that are now available.

Now you need to make clips for the file itself. The principle is simple - we take a bolt and make a cut at the base of the cap, but not completely. In the future, the file itself will be inserted into this cut. The principle is shown in the photo below.

This is how the upper assembly of the saw blade is mounted and assembled.

The lower node is almost the same as the upper one, except that it is not a plate that is used, but a standard file is taken (it can be “BU”), almost the entire cutting part is sawn off with a grinder (angle grinder) and the shank is left. In the remaining cutting part, a hole is made with a similar bolt with a slot at the base of the cap, which will also include a file. The principle is shown below.

After the file is fixed, we install the jigsaw itself. We fasten it with the help of bolts with countersunk hats so that they do not stick out on the tabletop of the machine.

We fix the file in the upper and lower clamps.

Now you need to adjust the perpendicularity of the file, relative to the table of our machine. To do this, you can use a square, or, as in our case, just a bar that is exactly trimmed. We make the adjustment as follows. To adjust the file to the left / right, the adjustment of the upper plate is used - its displacement on the axis - respectively in the desired direction.

And to adjust the file position forward / backward, the displacement of the file attachment itself forward or backward is used.

The machine is almost ready, it remains to make and install a plate that surrounds the jigsaw file. It can be made from textolite or any piece of sheet plastic.

This completes the manufacture of the jigsaw machine.

We hope that the presented material was useful to you.

Conclusion

dimensions

Here is a table with overall dimensions:

General assembly scheme

Let's attach a complete assembly scheme, which in a sense can be a 3B drawing for making a do-it-yourself jigsaw machine.

Video

The video on which this material was made.

DIY desktop jigsaw

Sawing small pieces of wood is done with a jigsaw. The device is small and usually has an electric drive. Factory models differ in their characteristics and cost. With small volumes of wood processing, it makes sense to make a jigsaw machine on your own, from improvised means. This requires a few factory parts.

A factory-made jigsaw is a reliable device, the operation of which is guaranteed by the manufacturer. Manual models are low cost. Stationary devices are expensive, but provide proper comfort when processing wood. The set of components in the device is largely the same for everyone.

The design consists of the following parts:

The part to be processed is placed on the desktop. The size of the workpiece depends on its size. Some models have a turntable, which makes it easier to work with the part - visibility improves. The presence of graduation facilitates the marking of the material.

Average characteristics of factory machines:

Special purpose models may have radically different characteristics. There are specifications of small sizes, for processing small parts. As well as models of large sizes, the industry also produces for retail sale. But such options will differ in high cost.

Features of extracting a drill for a puncher

In the middle class, there is high competition for the consumer, so the devices will be cheaper. Characteristics are also sharpened for typical carpenter tasks. Based on them, you need to make drawings of a jigsaw machine with your own hands. Complex components for it are purchased at the store.

Experts classify jigsaws by type of construction. Features of the execution of the mechanism determine the possibility of processing wooden products.

Classification is carried out depending on the design of jigsaws.

Device types:

• With bottom support.
• Double caliper.
• On a pendant.
• With degree scale and stop.
• Universal.

Models with a lower caliper are most widely used. The bed of the desktop factory device has 2 halves - the lower and the upper. The sawing and chipping model is located on the top of the bed.

The bottom frame contains a controller, an electric motor, a main gear, an on/off button. Such a machine allows you to work with any materials and any size.

The presence of two calipers in the jigsaw is beneficial in that the upper half of the frame has an additional rail. This jigsaw is ideal for cutting small parts. The thickness of the workpieces on both models should not exceed 8 cm. The desktop of such machines, as a rule, has the ability to adjust in height and angle of inclination.

Suspended devices do not have a fixed frame, but are distinguished by their mobility. The processed material is fixed, and the master moves the working module. since the latter is attached to the ceiling, the thickness of the material is not limited. The tool is moved manually, regardless of the bed. This allows you to make patterns of complex shapes.

The presence of a scale of degrees and stops is suitable for those craftsmen who do the processing according to the drawings. The markup allows you to avoid errors during operation. There are universal machine models on the market that allow you to do several operations. Such a machine allows drilling, cutting, polishing and grinding. The cost of such devices will be much higher, but it is more comfortable to work with them. These are industrial examples.

The designs and drawings of the homemade jigsaw options presented on the network are different. Blame the imagination of the authors and the desire to make a device that will stand out from the rest. Only the concept is the same in most cases - they take a manual electric jigsaw as a basis and repurpose it.

How to choose a circular saw blade

Home woodworking lovers often look for information on how to make a jigsaw with their own hands without special skills. You can use a ready-made manual jigsaw as a base. The mechanism does not require careful refinement. The factory manual device is the drive. But the crank mechanism will have to be developed independently. Manufacturers are trying to offer the consumer a platform for quick rework, but personal needs can only be satisfied with their own product.

Assembly order:

1. Make a base table. A sheet of metal is taken as a material and a hole is made in it. The shape is oblong, 3-4 times wider than the saw blade. Holes for fasteners are made side by side.
2. A factory device is fixed at the bottom of the support table. Holes for fasteners are made next to the hole for the saw blade. Screws with a countersunk head are used as fasteners. This is necessary in order to ensure a perfectly flat plane of the table. Otherwise, the processed products will cling to the hats of the wines, which will cause inconvenience in work.
3. The design is fixed on a wooden table.

The advantage of creating a do-it-yourself jigsaw machine is that the factory tool can be detached at any time. When necessary - in the hands of an ordinary manual jigsaw. Therefore, it is better to purchase a manual version of the tool that can be used on a homemade machine - it's cheaper. Stationary devices are expensive.

Comfortable work with wooden products can be ensured by installing guide rails on a homemade support table. Additionally, markings are applied to the table, which makes it easier to measure the distance on the parts during processing.

The manual type jigsaw as the main device for the machine has disadvantages. The main problem is the file - it is too wide in manual models. Because of this, fine woodwork is difficult to perform with it - the curvature of the lines is limited.

The previous design is simple and does not have additional details that make it easier to work with wood. The direction of modernization is the possibility of replacing the file with a thin one.

Options for improving the design:

1. Build a rocker. The structure will be tensioned by springs on one side. The second side of the rocker is fixed on the file.
2. Fix the file between two rollers. They serve as guides for a thin file.
3. A stationary factory device is used as a drive system of two rocker arms. Between the latter, a file is pulled. The movement is transmitted from the factory device to the lower rocker of the file.

The principle of operation of a caliper, types of tools and examples of measurements

When buying or self-manufacturing, the design will have to be chosen based on personal preferences and the desire to poke around in technology. The use of guide rollers is a less popular option - its reliability is lame.

Modernization by installing rocker arms is common. It is better that at the same time the factory device serves only as a drive for sawing a jigsaw. To do this, turn off the pendulum stroke in the tool.

The heir to the property of grandparents often gets an old sewing machine. She has already served her purpose in tailoring, as more precise equipment is now being produced. In the absence of a jigsaw in the household, you can not spend money on its purchase. It is made by hand from a sewing machine.

Procedure:

Now the jigsaw for figured cutting on plywood is ready. It will be more difficult to work with a manual drive, as your legs will get tired. An additional disadvantage will be vibrations from the force impact on the tool. The electric drive of the machine, converted into a jigsaw, partially solves the problems of vibrations.

An expensive jigsaw can be replaced with a self-made design. It will not be inferior to anything in terms of its qualities and functionality, if you take a responsible approach to the assembly process. It is important to make high-quality plywood mechanisms that serve as a support table. It is desirable that the table be able to rotate. For the option with a sewing machine, this will not be possible. If desired, markings are applied to the table to make it easier to measure the details in the process.

The idea of ​​\u200b\u200bcreating a homemade jigsaw is most often due to the shortcomings that a factory hand tool has. You can make a small desktop machine with your own hands, which will include a pusher, a reciprocating motor, a file tension system. In this case, you do not need complex drawings - having understood the essence, it is easy to achieve a result.

The desire to create a homemade jigsaw may arise for several reasons:

1. There is no power supply in the workshop, but it is possible to use low power internal combustion engines.
2. There are pneumatic motors, but the compressor power is not enough for a serial tool.
3. The electric motor is powered by batteries or solar panels, the power of the source is not enough for the use of power tools.
4. It is required to obtain saw movement parameters that are unattainable when using a serial tool.

Designing a jigsaw is not difficult. A typical structure looks like this:

The unit can be easily adapted to any torque source. A pair of pulleys (one is located on the motor shaft, the other drives the crank mechanism) allow you to vary the gear ratio, reducing the load on the power unit and allowing you to get the desired speed (they are also responsible for the number of saw strokes per minute) on the actuator.

A machine built according to the above scheme may have most different configuration, the material of manufacture is also selected individually. An example of a finished installation looks like this:

Disadvantages of a manual jigsaw

Manual electric jigsaw is designed to form even cuts. At the same time, as the rollers, rod, and pusher wear out, the saw may be beating and deviate from a straight line, and the angle of attack may change. Regardless of the quality of the tool assemblies, the following features are always present:

1. When the saw becomes blunt, a deviation from a straight line is observed when cutting material of uneven density (for example, low-quality chipboard). The saw is able to leave the cut line, having met a knot in the wood.
2. When trying to make a figured radius cut, one can observe the following picture: the upper cut line, followed by the worker, follows an exact trajectory, the lower one deviates, goes to the side, the radius becomes larger. The higher the wear of the tool and the lower the sharpness of the saw, the more pronounced this phenomenon.
3. Some materials cannot be worked with the pickup or bottom feed of the saw. The carpenter is required to drive the tool forward extremely evenly, which cannot be done very accurately, resulting in a beating of the saw along the path of entry and exit.

It is even more difficult to work with thin saws designed for curly cuts. If there is no practice, it is very difficult to achieve a good result, especially on a thick slab or wood materials. Consider how you can make the work of a carpenter easier, and the result better.

Standard Solutions

The machine is made from a manual electric jigsaw based on a simple table. This device is common, mass-produced, samples can be seen in the photographs below.

The mechanics of work is simple:

• The jigsaw clearly fixes the tool, ensuring that there is no influence of the human factor (the hand can lead the jigsaw unevenly).
• The presence of a support allows you to move the device without deviations along the trajectory.

With the help of a table, jigsaws begin to cut in a straight line, but the possibilities of such a device are limited. If you remove the side stop and try to guide the workpiece, forming a curved cut, the same problems of saw deflection arise. The problem can be solved by using a simple saw, rigidly fixed with a pair of rollers. Making curly cuts is now convenient and fast. How homemade and industrial products of this type look like is shown in the following photos.

Tensioners for curved cuts

To perform very thin and precise curly cuts, you can make a machine from an electric jigsaw with a saw blade tension system. The idea of ​​\u200b\u200bdoing it yourself is as follows:

1. A very thin saw is used, ideally for a manual jigsaw.
2. A clamp is attached to the rod of the power tool, which will stretch the cutting blade.
3. The trajectory stabilization system will regulate both one freedom of movement and two (horizontal and vertical).

Used as tension block hand jigsaw clamp, to which an adapter is made, which in turn is inserted into the clamping fixture of the power tool rod. To ensure the adjustment of one freedom of movement, a pair of angles and a bolt are used. The result of the implementation of the idea is presented in the following photo.

The saw provides a clear vertical movement, you can create a good tension, but there is a mandatory runout in the horizontal direction. The canvas goes with pickup, it does not move in a straight line.

The development of this idea is in the next photo. Here the part fixing the trajectory moves, and the metal clamp provides structural rigidity and mechanical resistance.

The system is stabilized in two degrees of freedom, the cut made with its help is accurate and accurate. Using a diamond-coated cord for a hand jigsaw, you can cut glass without the formation of sloppy chips on the edges.

Devices for extremely fine work

If you need to work extremely delicately and slowly, you will need to reduce the force on the cutting blade and at the same time provide a strong tension and precise movement of the file. To do this, a homemade jigsaw is equipped spacers with long shoulders.

In this case, the power tool does not operate in the cut zone, but at some distance. This allows, depending on the wishes of the carpenter, to adjust the force, speed and amplitude of the saw movement. One of the options for implementing the idea is presented in the following photo.

Depending on the needs of the master, the structure can be made of steel, have additional fixing zones, the power tool can not be installed rigidly, but with the possibility of movement within its support beam.

In practice, such solutions are rarely used. For delicate work that is done constantly, it is much more profitable to purchase a specialized band saw that will ensure quality and productivity.

As can be seen from the presented designs, a jigsaw can even be made from a sewing machine with a moving stem.

What if you need to use a jigsaw, but there is no desire to purchase it? Experienced craftsmen will answer that in this case the easiest way is to make a jigsaw with your own hands.

There are multiple ways to make and repair such a tool yourself. Below is a list of options for using the most simple and affordable of them.

We make a manual jigsaw using simple technology

Before you make a jigsaw, you should prepare inexpensive and affordable materials. Let's put them in the form of a list:

• sheet plywood - 12 mm;
• sheet plywood - 5 mm;
• sheet steel - 2 mm;
• set of bolts and nuts;
• drill (manual or electric);
• chisel;
• sanding paper;
• files.

As a base for a manual jigsaw, you must use a bracket, which is made from a sheet of plywood (12 mm).

After that, a thickening should be made on the handle using a thinner plywood sheet (5 mm). Such a thickening is glued evenly on both sides of the handle, which, during subsequent work with a jigsaw, ensures its comfortable position in the hand. At the same time, the bracket and handle must be carefully processed with sandpaper and files of different classes.

The steel plate must be cut down with a chisel and the clamping jaws must be cleaned using a file. Next, you need a drill to make cuts in the jaws. Having taken this step, we proceed to cutting notches on them with a sharp chisel. Modify the left clamping jaw in such a way that a threaded hole for the bolt is made. We attach the jaws to the bracket, and then screw the bolts on the left clamp, securely fastening with a nut.

Options for making a desktop jigsaw

Desktop fixtures of this kind can be made both from scratch and through improvements to existing devices.

Option 1

To make a new desktop mechanical jigsaw, you must first acquire the following tools and supplies:

• duralumin pipe;
• plastic base;
• screws;
• copper sheet;
• drill.

First, we prepare the frame; an duralumin pipe is well suited for this purpose. During the manufacture of the frame frame, a passage must be provided through which an electrical wire is laid, which will provide the tool with power. Using a copper sheet, a U-shaped frame is made, which is then attached directly to the frame. In the area where the frame is connected to the handle of the jigsaw, the frame is screwed with screws.

Then we take a plastic base for drilling holes and mounting slots in it. On the prepared basis, we fix the jigsaw in such a way that the file can pass freely in the hole made. With clamps, we attach the finished fixture to a flat surface, for example, on a table.

Option 2

For the manufacture of a jigsaw, you can use a sewing machine, the repair of which is not necessary. To make such a tool, you will need the following materials and tools:

• foot or manual model of the sewing machine;
• hacksaw blade;
• needle file;
• electric drill.

We unscrew all the bolt fasteners from the lower parts of the machine structure, the entire working system with the thread is completely removed. We remove the metal mounting rod by knocking out and remove the drive shaft. We unscrew 2 more bolts and disassemble the panel that closes the sewing machine, its removal is quite simple. Gently remove the sewing needle and get to work.

First of all, we perform work with a slot for the needle. We expand it to such a size that a file can fit there. A needle file will help to cope with this task. It should be selected based on the size of the hacksaw blade. Try to make the size of the cut for the file as accurate as possible. Having bored the connector, you can install the canvas in place of the former needle holder. And in the end, turning the wheel, you need to check a few points in order to:

• there was no contact between the saw, the panel and the presser foot;
• there was free passage of plywood under the saw in the upper position;
• materials were drawn in a smooth motion without jerks.

Such jigsaws are suitable for use in working with plywood, balsa wood and plastic, and when using an electric machine, such a device can be converted into an electric jigsaw.

Video “Jigsaw. Choosing a tool and working with it

If it is not possible to repair the jigsaw

If the use of a manual jigsaw does not correspond to the tasks, and the electric ones cannot be repaired, then it is worth using the options below that will allow you to make an electric jigsaw. Table type electric jigsaw:

• electric jigsaw for manual use;
• sheet plywood;
• set of clamps;
• 10 pieces of screws;
• electric drill.

We make markings for the slots in the plywood and carefully cut them out. If there is a pendulum stroke, it must be turned off. Then we place a hacksaw blade in the slot and attach it there. We also make several slots on plywood, drilling holes with a drill and connecting them to each other. Screws are placed in the slots made. As a result, it will not be difficult to fix the tool with clamps on flat surfaces. The device is ready.

Jigsaw from an electric drill:

• steel sheet (4 mm);
• steel sheet (1.5 mm);
• steel sheet (1 mm);
• steel rail (2 mm);
• spring rail (0.9 mm);
• steel bar (section 7 mm);
• electric drill.

Using sheet steel (4 mm) we make a product in the form of a C-shaped frame, which will be the base of the jigsaw. Next, attach it to the electric drill. For this purpose, it is necessary to create a special clamp made of steel sheet (1.5 mm), which will provide fastening. At the edges of the base we fix the spring slats. We will need a steel sheet (1 mm) to make clamps through which the saw will be attached. These clips on the edges will also help to strengthen the C-frame. And from a steel bar you can make a crank that will power the saw. For the connecting rod, we need a steel strip, which will allow us to create a crank mechanism.

On this, work on the manufacture of a jigsaw can be considered completed. Due to its massiveness, for safety reasons, it is better to clamp the drill in a vise during operation. And working materials are best placed on flat surfaces.

Video “Jigsaw. Modernization"

If you are into carving and making figurines or parts out of wood, plastic or similar material, you cannot do without a tool whose name is reminiscent of the distant Soviet past: this is a jigsaw.

Jigsaw jigsaw strife, now on sale there are both "pioneer" elementary manual models, and modern electric tools that only remotely resemble familiar saws.

You can also make a jigsaw yourself: in the technical literature and the network, many diagrams and drawings of electric jigsaws are offered.

It is not difficult to make such a device, and you will get significant benefits from it. You will be able to independently engage in the production of furniture you need and realize the most daring creative ideas for the interior.

An example of the manufacture of a jigsaw machine.

Homemade jigsaw for you to professionally make smooth details of the most bizarre shapes. First you need to decide on the most suitable design for you.

Technical description and components

The schematic diagram of any jigsaw machine is the same for different models.

It must include the following parts:

• file;
• drive with a power of about 150 W;
• rocker for tensioning the file;
• working surface with graduation;
• drilling block, etc.

Consumables are fixed on the working surface. In advanced models, there are special devices for rotary movements of the part, in which the working surface can change the angle of inclination.

The dimensions of the surface will depend on your production and creative plans: the larger the parts you are going to cut, the larger your production table should be. Traditional sizes are usually around 30 - 40 cm.

The types of saw blades are varied. They depend primarily on the consumable material. The dimensions of the parts for cutting are also important. Conventional saw blades for working with wood have a length of about 35 - 40 cm. They are able to saw parts made of wood or plastic with a thickness of no more than 100 mm.

With different types of materials, saw blades also change, mainly regarding their width: from 2 to 10 mm. Files can vary in the type of their tails - with or without pins. They are fixed in a special device for their tension and even sawing. To do this, they have spring-type springs.

Another important one: the crank assembly. Its function is difficult to overestimate: it is he who transmits the movement from the drive to the file, turning the rotational movement into translational.

Assembly drawing of a jigsaw machine.

Due to this, the file begins to oscillate with a high frequency, the speed of such oscillations is on average about 800 - 1000 rpm. It is important to remember about the amplitude of vertical vibrations, it should not exceed 50 mm.

In advanced modern jigsaw models, the speed varies depending on the type of consumable. Most desktop models operate in two speed modes. Most often it is 600 and 1000 rpm.

Model range of jigsaw machines

Most often, in its electric drive power, the range of values ​​​​is huge: from 90 to 500 watts.

Also, these devices are divided into varieties based on their fundamental design:

• universal;
• on suspension;
• with graduation;
• with a caliper in the lower position;
• with double support.

Jigsaws with bottom support

Scheme of machine design elements.

The most used and popular models are machines with a lower support. Their feature is the division of the working frame into the upper and lower parts.

While the upper section contains only one sawing and cleaning device, the lower section contains many working elements: an electric motor, a switch, a transmission unit and a control unit. This design makes it possible to cut sheets of materials of almost any size.

Machines with double support

A home-made jigsaw with a double caliper differs from the lower caliper by the presence in the upper section of a special additional bar and a desktop with the ability to change the angle of inclination and overall height.

These models are designed to work with oversized parts. Such a machine is easier to make than the previous model. There are limitations in the materials with which you can work on it: their thickness should not exceed 80 mm.

Hanging machines

The name speaks for itself: the model is mobile, it works without a frame. The fundamental point in this design is the movement of the cutting file, and not the consumable. The module itself is attached to the ceiling, the saw is set in motion manually.

All this gives serious advantages: in this way you can create the most complex patterns, the surface dimensions are not limited by anything.

Graduated devices

The presence of stops and a degree scale make it possible to work according to technical drawings, without the slightest error.

Universal machines

Such devices are usually called electric jigsaw. Their feature is the ability to perform several operations such as grinding, polishing, sawing, etc.

How to make a jigsaw machine with your own hands?

We will not stop at the manufacture of the simplest machines: you can easily find such manuals with video support on the net. Let's talk about homemade jigsaw machines.

Assembling the machine with your own hands.

Here is the sequence of work for their manufacture:

• We make a bed from plywood sheet or plastic.
  The main thing is that the thickness should not be less than 12 mm. The function of the bed is a foundation, a working surface and a place for fixing mechanisms and an electric motor.
• We place a special rocking chair with an eccentric on the opposite side.
  We connect them using a metal bar with bearings. All fasteners in the design are screw.
• We make installation of an intermediate shaft.
  To do this, you need to prepare two bearings, put the pulley on the shaft as tightly as possible, then carefully fasten it with screws. Similar actions are performed with an eccentric.
• At the rocking chair, the amplitude of movements should change.
  To do this, you need to change the place of attachment of the screw, for which we drill exactly four threaded holes on the eccentric flange. The holes should be located at different distances from the axis. With a change in the place of attachment of the screw, the swing of the amplitude of the rocking chair will change.
• We make a rocking chair: this is nothing more than wooden rocker arms, into whose rear ends the screws that you built in the previous paragraph are inserted, these are tension screws.
  The rocker arms themselves are hinged to the rack. We fix the file on the front ends of the rocker arms. The previous and present stages must be carried out with special attention and care. The fact is that fastening the file is a fundamentally important thing. Rocker arms with plates are subjected to constant loads during movement due to their rigid screed with screws.
• For a rocking chair you need a stand.
  It will be better if it is made from a whole piece of material. We make a groove for the first rocker arm on the top of the rack. From the lower end we have a special rectangular opening for the second rocker arm.

Your . We wish you cool ideas and their high-quality implementation.