Precision in cutting wood is of fundamental importance, especially for the creation of furniture, models, and other objects. The circular saw is one of the most suitable tools for both amateur and professional levels.
If you intend to venture into the fascinating world of woodworking, then you must know the tools of the trade so that you can understand which ones are best suited to your needs. Mainly the cutting of the wood is carried out with manual and electric saws; among the latter, we find the handy circular saw.
You probably have seen some of them in action in a workshop or maybe some friends who are passionate about DIY. The circular bench saw allows you to make oblique and straight cuts of different lengths, which is why it is a favorite of various professional craftsmen. However, it is also possible to find ‘entry-level’ models for DIY at an affordable price. To begin with, therefore, it is not necessary to buy the best bench saw by spending a fortune.
How it looks
The shape of the circular blade gives its name to this type of tool which is usually driven by an asynchronous, single-phase or three-phase electric motor. There is a difference in power between these motors. For example, the single-phase ones reach 230 V while the three-phase ones double the power with 400 V.
The toothed blade is placed on a support on which the piece to be cut is slid. The effective effectiveness and speed of the cut are determined by the power of the motor that determines the revolutions of the saw and the diameter of the blade. To use a circular saw, just turn it on using the on/off button, but the models on the market have other functions such as the cutting depth regulator or the base plate.
More advanced products may have a graduated scale for the calibration of the cutting angle, a sliding guide, and maybe a laser pointer, which significantly increases the precision of the saw. Of fundamental importance is the locking system of the drive spindle, which makes the saw safe to use.
How does it work
The circular saw is mainly used for woodworking, but it can work with other materials such as metals, resins, and composite agglomerates. The cutting capacity depends a lot on the blade and the diameter of the disc. A technique often used is to mount larger leaves on the saw of the object to be cut; for example, on a 10 cm table, you can use an 18 cm disc.
To lock the piece of wood, you have to insert it in a vice to keep it still. Without a vise, you run the risk of making a mistake, thus frustrating all the preparation of the work, inevitably ruining the object. As for the shavings, the movement of the circular saw distributes them backward. Therefore individual safety systems are not necessary. However, before using the saw, read all the rules and instructions to be able to perform the cut without problems and any risk.
Since you will use a tool capable of causing serious accidents, it is good to inquire about the various operations that make it safe. First of all, bring the right clothing: cut-resistant gloves, protective glasses, masks, and maybe even reinforced knee-highs. Then fix the table to be cut or the object with extreme care, carefully tightening the vice.
Then you have to adjust the depth of the cut, allowing the object to come out a few centimeters to be sure you have completed the operation. The most important thing, however, is to work holding the saw with two hands, leaving the grip only when the blade is completely stopped.
The circular saw exists in different shapes and models suitable for DIY enthusiasts and professionals. In addition to the bench saw that we have described in the previous paragraphs, you can find much more compact and portable circular saws. These models are usually extremely light and can be carried wherever you go. They are particularly useful if you do not have enough space to install a workbench.
The portable saws have a single-phase electric motor, therefore only 230 V, while the small diameter blades allow cutting only the wood. The absence of the workbench implies reducing the objects, and it is necessary to hold the saw firmly during the cut that can be performed both obliquely and straight.
We conclude this guide with a small nod on the edges. For precise cuts, we recommend choosing modules with 40 or 80 teeth, while for normal ones, 25-30 teeth are sufficient. The former is also particularly suitable for cutting plastic and aluminum, while the latter is perfect for wood. You can find circular saws and blades in various DIY stores or on e-commerce sites, where prices are often very affordable. Bear in mind that some products will be delivered to you in pieces, and therefore you will have to follow the assembly instructions.