How to use a jigsaw : life advice
A modern electric jigsaw is a high-tech tool that allows cutting various building materials at a high speed. Moreover, thanks to its design characteristics, the presented rigging can be used both for the execution of straight, curved (curly) cuts, as well as oblique cuts.
However, if the choice of electric jigsaw is more closely connected with the consumer criteria of the device, then the correct operation of the equipment allows to prolong its life and to protect the consumer from getting injuries and injuries. The relevance of this topic is also related to the fact that not many users know how to use the electric jigsaw correctly.
Operating modes of the tool
It’s no secret that the quality of the cut and the durability of the jigsaw in many ways depend on the correct choice of operating modes. And since most of the designs of modern jigsaws allow you to change the frequency of moving the blade and its lateral movement, it is these criteria that should be varied to achieve the most optimal result.
In view of the fact that the tree is a soft material, it is advisable to cut wood at high speeds (except for hard rock). In this case, the use of the function of the pendulum (transverse) stroke in this case is justified only when working with thick wood materials. And although the most optimal mode of the pendulum mechanism can be determined by experience, nevertheless manufacturers of power tools advise to adhere to the following recommendations to use the pendulum mechanism if any:
- With a workpiece thickness of up to 30 mm, the pendulum mechanism is not used;
- With a thickness of the workpiece from 30 to 50 mm – the pendulum mechanism switches to the I position;
- With a workpiece thickness of more than 50 mm – the pendulum mechanism switches to the II position.
In general, it should be understood that the inclusion of the function of the pendulum stroke, although it increase the productivity of the work (cutting speed), but at the same time significantly degrade the quality of the cut. In view of this, this mode is advisable not to be used when working with finishing materials such as laminate, parquet, furniture chipboard, etc.
Sawing of metals
For many users, it may be a secret that it is possible to cut metal products with a jigsaw. And all that is necessary for this is to install the appropriate blade and follow the basic recommendations.
So, when working with metal, the pendulum mechanism should be switched off, and the speed of the saw movement varies from 30 to 40% of the maximum. At the same time, it is very important to provide a cutting site with an emulsion (water with machine oil) to extend the service life of the replacement tool and reduce the mechanical stress on the drive part of the electrical equipment. In addition, it should be understood that the processing of metal by cutting with a jigsaw is quite labor-consuming and long-lasting. In view of this, during operation it is necessary to provide periodic shutdown of the tool to cool it.
Cutting of plastic materials
Electric jigsaw with great success is used for sawing plastic, plexiglass, textolite and similar components. And although the listed items do not have a high hardness, nevertheless, in order to avoid their deformation (chipping, melting), they must be cut off at low speeds using small-tooth saw blades.
If it is necessary to form curvilinear cuts on the tile, the electric jigsaw can also become an impeccable assistant. However, to achieve optimal performance, the following recommendations should be followed:
- When processing, the maximum area of tile should lie on the surface of the table;
- It is mandatory to use a specialized replacement tool;
- The frequency of the saw should be below the average, without turning on the pendulum.
Selection of saw blades for electric jigsaw
The use of saw blades for other purposes may cause their deformation and cause the tool itself to fail. Therefore, for different types of operations, only specialized equipment should be used.
So, for the sawing of soft building materials based on wood, it is justified to use saws with a middle tooth pointing upwards. However, it should be understood that the existing tooth divorce can cause damage to the face of the edges of the sawed materials, so that experts recommend that the cutting of construction components such as laminate, MDF, plastic on the back, for which the material simply flips “face down”.
If such a decision is not applicable, you can use the backing files (the teeth are directed downwards), but in this case the jigsaw will vibrate violently, creating inconvenience to the performer.
When, however, with the help of a jig saw it is supposed to perform cutting of metal products, it is necessary to use specialized metal files, which, in the shape of a tooth, resemble ordinary canvases and are capable of operating in a continuous mode. Also, to obtain a clean cut, many experts recommend using metal saws and for cutting soft finishing materials (laminate, parquet). However, in this case, you should remember about the possible overheating of the equipment due to the increase in the duration of its operation.
When working with ceramic materials, diamond saws should be used, but only in exceptional cases (for example, for curved cuts).
In addition, regardless of the type, sawed materials, when performing curvilinear cuts, preference should be given to narrow nail files.
Before using the jigsaw, perform preparatory work, namely: prepare the base, install a removable nail file (tightening the clamps) and connect the power supply.
If we talk about the features of working with electric jigsaw, then we should highlight the following points:
- The cutting process should not be accompanied by excessive pressure on the jig saw, pushing it forward. After all, not only can the workpiece deform, the probability of breaking the saw blade increases significantly, and the load on the tool drive increases. That is, the task of the artist when using the tool is to maintain the right direction, and the rest of the work will be done by the electric jigsaw himself.
- In the case of rectilinear cuts, it is advisable to use special locks that will rest on the end edge of the material, thereby forming the same spacing along the entire length of the cut. If it is required to carry out round or oval cutouts, then an impeccable option for this work will be a circular knife, functioning according to the principle of the compass.
- If it is necessary to cut thin sheet metal, experts recommend putting a sheet of plywood under the blank and making joint cutting of materials, which will minimize the deformation of the sheet.
- Special attention should be paid to safety measures (especially if the jigsaw is turned over and working in a fixed installation mode) and apply individual protective equipment.
- In order to reduce the load on the tool drive, it is recommended to change the nail files in time (as blades become blunt), and also perform all routine maintenance (lubrication, debris cleaning, brush replacement) in accordance with the manufacturer’s recommendations.
In addition, it is justified to use additional options that make the operator’s work easier. Thus, to obtain an inclined cut, it is sufficient to set the support sole at a given angle. Laser pointer will help to determine the place of the proposed cut, and the dust collector will provide “clean work”.