I didn’t want to permanently place my expensive Makita jigsaw on the table, so I decided to buy another one to create a table. I was very lucky to find a jigsaw in the “Our House” store Caliber LEM-610E for only 862r. Includes: wood saw, side stop, adapter for vacuum cleaner, spare brushes for the motor.
There was an outlet next to the display case and I looked at it in action. It is quite well made, convenient, there is a speed control with a wheel, and the activation is fixed with a button. The saw holder moves smoothly without any play.
It’s very fortunate that I was able to twirl it in my hands before buying it; I wouldn’t risk ordering it from the Vseistrumenty.ru website without knowing what it is. (Although they write good reviews about it) By the way, it costs more there and there is also a delivery fee... so I successfully bought it at Our House. :)
Despite its advantages, it has a number of disadvantages that I noticed upon closer examination:
1) The file does not fit into the saw holder. Apparently this is a defective copy, but I did not waste my time on the exchange. Each file has to be sharpened. (Although I won’t be able to use them on the second jigsaw after grinding - it doesn’t matter, they are relatively inexpensive)
2) And this drawback is visible even in the picture. The canvas is tilted strongly forward. (This was also corrected by placing tin strips under the back of the sole, achieving 90 o.
3) The speed control wheel turns heavily, not very clearly and with jamming. At the minimum speed value, the tool cannot start at all (However, the same garbage with the start is also true for my other “calibrated” drills. This is unpleasant, but does not spoil life much)
As always, everything is in the spirit of minimalism. I did not make a separate switch. It is quite convenient to turn on with a standard button and lock into place.
To do this, I bought a bracket at KrepMarket (this is a fastening element from some kind of system iron structures)
By the way, I really love CrepeMarket. Any screws, nuts, screws, fasteners. Every time I design something, I wander around in thought and collect the necessary details.
I cut off the excess and sharpened it.
Back view. Now the distance between the bearings has a fixed clearance for the file of 1.2mm. I have a plan for the future: to make a gap adjustment.
For thin materials can be lowered below.
As an experiment, I drew a star and tried to cut it out evenly
For a 130mm file, the maximum possible thickness is 5cm. It turns out there are very long files, I recently saw a 300mm file on the market
I sawed off a 1.5mm slice from a 40x40mm block
Which is what I did. Now you can use it to cut long workpieces 11.5 cm wide. The old L-shaped design also remains, and if greater strength of the holder is needed, it can be installed again, although the new design remains quite strong and reliable.
I also came up with the idea of making a knife from an old dull file, grinding off its teeth and sharpening it.
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They can be used to cut material like sealant into shapes. The cut is smooth. Much better than a utility knife. The photo shows a mouse pad.
Well, that's probably all. The table turned out to be reliable and comfortable. Now I have a tool with which I can perform more delicate work than with a circular saw.
A tabletop jigsaw is an indispensable item for any owner who is used to doing household work on his own. Electric jigsaws are especially good for residents of the private sector, lovers of manual labor and country holidays. From its prototype, an ordinary hand jigsaw, a tabletop electric model gone far enough. A desktop jigsaw makes it easier and faster to cut, not to mention improving quality.
Concept of a tabletop jigsaw
A jigsaw is a saw, which is characterized by reciprocating movements of the saw blade, which acts as a working body. It has a ski designed to guide the saw blade when moving along the surface that is being processed, and makes movements at a frequency of up to 3000 vibrations per minute.
This instrument was invented in 1946. Its creator is Albert Kaufman, who replaced the needle in sewing machine on the blade. The instrument went on sale already in 1947. A manual jigsaw has a body with a flat platform and a handle. The main difference between an electric jigsaw and a manual one is its greater functionality and cutting quality.
Located inside Electrical engine and a special mechanism that drives the blade. In stationary jigsaws there is no handle, and the platform is located on top. At the front of the mechanism there is a guide, at the bottom there is a retractable blade that moves and makes cuts.
The tool works as follows: file for table jigsaw securely fastened with clamps in the slide. The reciprocating movements have a frequency of up to 3000 strokes and can be adjusted. The support platform allows the jigsaw to focus on the part being cut, so the work is carried out very accurately.
The purpose of a desktop jigsaw
A jigsaw is an integral part of every workshop and every hobbyist. Its thin file can successfully cut plywood, copper, iron, thick boards, brass, and steel. The tools come with motor, foot or hand drive and are more productive. An electric jigsaw is simply indispensable for carpenters, wood workers, furniture decorators, and drywall workers who produce complex parts.
An electric jigsaw can make straight and curved cuts on workpieces with complex shapes and various sheet materials without disturbing the external contour. Most often, tabletop jigsaws are used for cutting wood and wooden slabs, figures with complex outlines from laminate and plasterboard, plastic blanks, also for cutting sheet metal.
Desktop electric jigsaw makes clean cuts of complex shapes and works with small
details. Due to the stable and fixed position during operation, high cutting accuracy is achieved. The file has a stable motion thanks to the tension system and guides, which are devoid of hand jigsaws. Big size The table makes it stable, so the precisely specified sawing direction is maintained.
Types of jigsaws
Today, the power tool market offers a wide variety of jigsaws, which differ in the nature of their application, technical specifications, type of power supply and design features. In construction stores you can buy a tabletop jigsaw for every taste and budget.
It is difficult to classify by design features, because each manufacturing company strives to provide its products with features that are designed to facilitate and improve the operation of the tool. In this regard, the shape of the handle is a significant parameter.
There are two established types of handles - mushroom-shaped and D-shaped. A jigsaw with a staple handle requires one-handed operation. This increases the possibilities of using a jigsaw, but has a somewhat negative effect on the quality of cutting the material.
Mushroom-shaped handles allow for more accurate cuts when holding the jigsaw with both hands, having previously secured the workpiece to be cut. The choice of a jigsaw with a specific handle shape depends on the financial capabilities and personal preferences of the buyer. You should choose the jigsaw that will be more convenient to work with.
Household jigsaws are not intended for intensive use, but low price tabletop jigsaw and the power that is enough for household needs make them indispensable in the household.
Professional jigsaws are characterized by high wear resistance and the possibility of daily long-term (up to 8 hours) use. The significant power of such jigsaws allows processing of materials of large thickness. Expanded equipment and improved characteristics are reflected in the price.
Among professional jigsaws, industrial jigsaws also stand out, which are characterized by greater adaptability to complex operations and drive features - for example, increased power supply voltage. Industrial models are machines that are designed for the woodworking industry.
Depending on the type of power supply, there are mains and cordless jigsaws. Network models are powered from a power supply network with standard voltage. If productivity is important to you, then you should choose a corded power tool.
Cordless jigsaws provide independence from the presence of sockets and greater mobility during operation. When purchasing a battery model, you should pay attention to the type of battery. Elevated performance characteristics inherent in lithium-ion batteries. The battery capacity is responsible for the duration of operation without recharging.
Advantages of desktop jigsaws
The tabletop electric jigsaw is a stationary structure, so this cutting type The tool has many advantages. Modern models can work with wooden materials 40-50 millimeters thick. The working body is a narrow saw, which makes vertical translational and reciprocal movements. Due to the peculiarities of the notching of the teeth and the mechanics of the movements of the saw, the material is cut out by moving upward.
A tabletop jigsaw allows you to cut out complex decorative parts, make longitudinal, straight, inclined and transverse cuts. The wide tabletop allows you to process large parts and make cuts inside wide workpieces. Secure fastening protects the housing from unnecessary vibrations and allows the material to be well positioned, so the motor can operate without overload.
The advantages of desktop jigsaws include good accuracy and clarity of cuts, high safety and ease of use, ample opportunities settings depending on the material and the required part of the cut workpieces.
If you need to cut out parts small size, a manual jigsaw will not be very convenient. It is quite heavy, so you will have to hold it with one hand and guide the workpiece with the other. A table jigsaw does not have this drawback. Perhaps the inconveniences are too big sizes and the difficulty of working with large parts.
A tabletop jigsaw is a kind of mini-machine for cutting workpieces. If you purchase a jigsaw in a store, most likely it will provide the ability to select power and adjust the frequency of saw strokes. However, you can make a simple homemade tabletop jigsaw, and very quickly. You will need a hand jigsaw, a few screws, a piece of plywood small sizes and only an hour of work.
Making a tabletop jigsaw
A carefully made jigsaw will be little inferior to one made in a factory, and in some respects even superior to it. Assembling such a jigsaw is not difficult if you have necessary materials. Next we will describe simple diagram such manipulations.
The design of the jigsaw includes the following components: handle, switch button, insulating washer, power cord, frame, heating filament, screw clamp and earring. First you need to make a frame. You will need a duralumin pipe with an outer diameter of up to twelve millimeters.
You can also use textolite with a thickness of at least ten millimeters or thick plywood for the base. But keep in mind that the lighter the frame, the more convenient the jigsaw will be to use. Be sure to provide a channel so that you can lay the power cord later. Most best shape a frame is one whose sides are tilted 45 degrees.
Next you need to make an earring. It is made of copper sheet one millimeter thick. After this, it is attached with screws to the frame where it connects to the handle. In this way, the screw, wing nut and shackle will form a clamp in which the heating filament can be fixed. The thickness of the duralumin sheet should be up to 0.8 millimeters. It is necessary to make pressing cheeks from it, between which there is a switch button.
After this, you need to cut a gap in the plywood that the saw can fit through. It can be done using a drill. To do this, you need to drill holes along the marking line and smooth out the transitions. Instead of plywood, you can use plastic, metal, plexiglass and others. Next, you place and drill mounting holes on the plywood and jigsaw base plate.
Then you need to secure the jigsaw with screws to plywood base so that the file can pass through the gap. You attach the structure to the table using a clamp so that the file is pointing upward. You can also secure the platform in any way possible.
The jigsaw file remains a regular one, but the possibilities for good cutting are expanded by freeing up your hands.
you can use nichrome spiral from any household heating device (iron for example) as a heating thread. It must be secured with tension between the ends of the frame bends. In order for the thread to heat up, you need to apply a tension of about 14 V. To control the operating mode, you can use a rheostat.
The current is determined by the thickness and length of the nichrome thread. Using a rheostat, you can set the optimal current strength (no more than 3-5 A), which will affect the temperature to which the filament is heated. Before starting work, it is necessary to determine the current strength. But keep in mind that if too high strength The material being cut can be caught by the flame, but if it is insufficient, it will not be taken. A self-made desktop jigsaw will allow you to cut out shapes with complex contours from various types materials.
Rules for using a desktop jigsaw
When working with a table jigsaw, you must adhere to some rules:
- When cutting, do not press too hard on the tool, otherwise the needle will break at best, or you will ruin the work at worst.
- Replace saw blades from time to time. An old saw can damage and destroy the surface of the material.
- If you work with organic glass and non-ferrous alloys, the surface of the product must be moistened with water. This operation will speed up the process and extend the life of the saw.
- If you are cutting a surface with a thickness of less than one millimeter, place a sheet of wood or plywood under the material being processed.
- Before cutting, it is necessary to secure the material. It is better not to make long cuts by hand; the line may turn out to be crooked.
- For cutting different materials appropriate blades are required, with a special pitch and length.
- Rotate the tool by turning only the back of the tool.
- When cutting laminate, tape is applied to the cut line, which protects the material from chipping.
- If there is a need for curved cuts, set the jigsaw pendulum to minimum.
If you have not yet fully understood how to make a tabletop jigsaw, watch a video about this procedure. This tool allows you to cut complex parts from wood and other materials, make longitudinal, inclined, straight and transverse cuts. Using a jigsaw, you can process large parts, wide workpieces and small products, which is not superfluous at home.
Having made a jigsaw with your own hands, you will not only be able to purchase practical tool, but also save cash: it will be much cheaper than the factory analogue, while possessing a full range of functions. A homemade jigsaw will allow you to create products of complex shapes from wood, plastic and other materials, the production of which with hand tools in normal conditions would take a lot of time and effort.
A homemade jigsaw allows you to make cuts of complex shapes.
You should consider the structure and sequence of manufacturing a simple tabletop electric jigsaw, assembly features and the procedure for working with it.
How does a tabletop jigsaw work?
As the name suggests, this tool is designed to be placed on the surface of a desktop or workbench. Compact dimensions allow you to work with a jigsaw both in a workshop or garage, and at home. An electric jigsaw is an indispensable tool for making complex wood decorations, curly carvings on plywood and similar works.
Kinematic diagram of the jigsaw drive.
It is necessary to take a closer look at the structure of a factory-produced desktop jigsaw. This will allow you to understand the main features of the device and apply them in a homemade model.
The components of an electric jigsaw can be divided into 3 parts:
- movable frame with saw;
- fixed base;
- Electrical engine.
The operating principle of the tool is as follows: an electric motor rotates a crank mechanism, which converts rotational movements into reciprocating movements. The movements are transmitted to a movable frame on which the saw is tensioned.
The homemade device works using the same principle. To simplify the design, the movable frame can be replaced with a regular hand jigsaw.
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Parts for electric jigsaw
When assembling an electric jigsaw, it is important to find a suitable motor that will drive the working tool - the saw. A motor from a drill, blender, etc. is perfect for this purpose. food processor or other equipment of the same type.
It is better to make the jigsaw frame from aluminum pipe.
The movable frame is made from metal profiles, wooden slats or slats made of durable plastic. It is most convenient to work with aluminum tubes of square section, since they are easy to process, have low weight and a significant margin of safety.
To fix the jigsaw in the desired position, you should make a reliable frame for it from wood or metal. The dimensions of the frame do not have much impact on the operation of the jigsaw. They depend only on which version of the tool you need - a compact tabletop or a full-size one installed on the floor.
The jigsaw table is made from a thick sheet of plywood, in which a small diameter hole is made where the saw will move (Fig. 2).
A gasket made of elastic material - rubber or leather - is placed between the body and the table, which will dampen vibration.
There is also a simpler option on how to make a homemade jigsaw. It consists in the fact that a hand-held electric jigsaw is mounted in a vertical position on a table-stand, while its file is attached tightly to movable guide bars - levers.
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Assembling a table jigsaw
The construction of a homemade jigsaw begins with assembling the body, which can be made of plywood, chipboard or metal. The most simple model of this instrument can do without a housing, but in this case strong vibrations occur, which can significantly affect the ease of operation. In this case, two holes are made in the jigsaw - one for attaching the crank to the tool, the second for movably fixing the jigsaw itself to the table. After starting the engine, the jigsaw begins to produce reciprocating movements that facilitate sawing of the material.
Such a spring will provide the necessary tension on the jigsaw saw.
A more sophisticated model includes two separate strips with wing nuts installed at the ends. From the opposite end, the planks are pulled together by a strong spring, ensuring constant tension on the saw. Such a device operates from a separate motor or, for example, from a drill.
There is a vertical bar running inside the case, which is fixedly attached to its bottom or one of the walls. Two holes are made in it, the distance between which should be 2-3 cm less than the length of a standard file. Bolts or pins are inserted into the holes, onto which strips are placed that hold the file.
The engine is built into the housing and is attached to the bottom bar by means of a disk with a connecting rod mechanism. A table with a hole for a file acts as a cover for the case.
The main disadvantage of a jigsaw with a separate motor lies in its most intricate part - the crank mechanism. The file with it makes not only vertical, but also oblique movements, which cannot but affect the cutting accuracy. If you need to get a precise tool, then it is better to replace the motor with an inexpensive factory-made manual jigsaw. It is secured under the surface of the body and a file is passed through the table, clamping it with one end in the jigsaw and the other in top bar designs. This design ensures sufficient cutting accuracy, bringing this parameter closer to factory models.
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Advantages of using an electric jigsaw
A jigsaw allows you to make complex cuts very accurately.
Unlike hand tools, an electric jigsaw has clear advantages, including:
- more high speed work;
- the ability to work with two hands, which increases accuracy;
- safety - with proper organization of work, a stationary tool is much safer, since it cannot break out of your hands.
Besides, self-production An electric jigsaw will save money, since factory machines of this type are quite expensive.
The article will primarily be useful to those people who often work with wood as a hobby, without making money from it. The author presents a fairly budget-friendly project for a desktop jigsaw, which can be assembled in one day, with minimal costs for materials.
To create the machine you will need the following materials:
- Working manual jigsaw;
- Plywood;
- Self-tapping screws and bolts with nuts;
- Guides for furniture drawers;
- Two bearings;
- Compression spring;
- Spray paint;
- Self-adhesive paper.
Materials and tools are standard, available in every workshop.
Step 1. Body.
The first step is to create a body for a manual jigsaw from plywood. Here you need to think in advance where the holes for the switch and speed controller will be located.
It should look something like this:
Step 2. Tabletop.
It is better to take a thick piece of chipboard with good coverage, since the workpieces being processed will rub against it during operation of the machine.
A hole for a saw blade is drilled in the chipboard. The jigsaw itself will be attached to the back of the tabletop.
A stem for attaching the boom is also made from furniture guides:
Here's what it looks like assembled:
And the tabletop is attached to the body:
Step 3. Arrow.
The boom itself will be made of two furniture guides. They are bolted together to increase rigidity.
Boom supports are made of chipboard. Before painting and installing them, the point at which the boom is attached to the support is measured. Before doing this, they need to be installed in their place:
After this, it is necessary to drill holes in the support for the bearing seats.
Step 4. Painting.
The prepared supports are spray painted.
While they dry, the machine itself is covered with self-adhesive tape.
Step 5. Assembly.
Bearings are inserted into the supports and screwed into place.
The boom mounting axis will be made of two bolts screwed into the guides as shown in the photo. The diameter of the bolts is selected in accordance with the diameter of the inner race of the bearing.
The bolts are tightened securely, after which the two halves are screwed to each other.
This clearly shows how the boom will be secured in the supports:
The boom is installed in its place and secured with nuts.
Next you need to install the garter spring. It is necessary in order to return the arrow to its original position after the jigsaw pulls it down. This is how the saw will move back and forth. It must be adjusted so that it is not too soft (this will complicate the operation of the machine) and too hard (this can lead to overheating of the jigsaw motor).
How to secure it is shown in the photo:
Then, from a thin strip of metal (1 mm), it is necessary to make fastenings for the file to the arrow. They must rotate freely on the axis, since during operation the boom changes its angle of inclination to the jigsaw, and if they are static, this can lead to breakage of the saw.
This is what the mounts should look like:
The boom supports are additionally reinforced with a long bolt, it can be seen in the photo:
Step 6. Electronic part.
Since access to a manual jigsaw is limited, it is necessary to place the controls on the outside of the body.
To adjust the rotation speed of the jigsaw electric motor, the author used a phase power regulator. Here is its electrical diagram:
Here's what it looks like:
When installing the board to the semistor, it is necessary to screw the radiator; if this is not done, it may overheat and fail.
The jigsaw is disassembled and the power regulator is connected to electrical diagram.
It is also necessary to install a power button for the machine.
Leonid Ivanovich Sudakov from Shklov has been doing everything for rabbits on the farm himself for more than 40 years: from preparing food to beautiful, high-quality cages for long-eared rabbits.
It works various instruments, the main one is a jigsaw: you can dismantle a board, saw off a block, and cut out a shaped door.
Only the purchased tool worked for a couple of hours and broke. And the scale of the owner’s work is impressive. Then he decided to make an electric jigsaw so that it could withstand heavy loads and could cut not only plywood, but also thick coniferous slabs.
Jigsaw machine diagrams
I knocked down a rectangular plywood box (see Fig. Item 1) - the base of the jigsaw. Nailed to the bottom wooden blocks(2) - for attaching the motor group. An electric motor was placed on them washing machine(3), connected a block of starting capacitors (4) to it and connected a start button (5).
The connecting rod with the piston (6) from the moped engine was placed on bearings and secured in the bottom of the box next to the engine. The cylinder (7) was screwed to the roof of the box so that the piston moved freely. I attached a pulley to the connecting rod and pulled the belt (8), connecting it to the engine pulley. Now, when turned on, the piston moves back and forth.
All that remains is to take care of the cutting blade (Fig., item 9, photo item 1). Leonid Ivanovich vertically screwed a bolt into the piston from above (item 2 in the photo), and sawed its protruding end (3) lengthwise with a grinder. I picked up a hex nut (4), drilled a small diameter hole in its end and cut the thread (5) with a tap. When I vertically inserted a jigsaw file (1) into the slot of the large bolt, I screwed on the nut and clamped it with a smaller bolt (6) screwed into its side hole. To make it easier to process wood, I attached a circle of fiberboard on top of the machine (Fig., item 10) with a hole in the middle through which the saw goes.
It has become more convenient to rotate and control the workpieces. The master is pleased with his device.
By the way
To avoid injury and vibration, install the jigsaw on a rigid support, and place a rubber mat under its legs.
On a note
Instead of a washing machine motor, you can use any three-phase motor (even low-power).
