Spare parts for circular saws - tool
The work of such tools is characterized by high efficiency and cutting speed. Although you should not expect that you will be able to saw everything on it. In particular, ferrous metals, quality steels, like stone materials, it is better not to try to cut. By the way, it is also impossible to perform figured cutting of material with circular saws. In this respect, they are inferior to electric jigsaws.
On the other hand, it is unlikely that even a long-length board or a sheet of plywood will be able to be flattened with a jig saw. Still, these are different tools, although both have electric motors and something to saw. Differences already in the form of a cutting attachment. In a circular saw, this will be a toothed wheel with a hole for attaching to the motor shaft - a disk for a circular saw.
The engine power of the circulars( the old name) is much higher than the jigsaw. Here the range is from half to almost three kW.No wonder: you need to rotate disks of different diameters with different number and size of teeth. By definition, it is clear that to cut a thicker material you need a disk with a larger diameter and a more powerful engine.
And very often this engine is attached to a bed with a working table in the form of a flat plate, including limit stops, other devices and spare parts for circular saws, which allow you to adjust the required cutting dimensions. Although more often an electric circular saw means a hand tool, which, however, also can be fixed on the frame.
For both variants( stationary and portable) it is important to select the correct disc. On the inner hole, it should be suitable for attaching to the shaft of the existing model. The outer diameter must not exceed the maximum permissible value determined by the protective casing. Both sizes are indicated on the disk canvas.
Circular saw appliances for convenience and safety
Determining the maximum thickness of material cut by a circular saw with a guide will help to make the rule that a portion of the disc protruding beyond its dimension should be at least one and a half or two tooth lengths. In this case, the full work of the entire cutting part and the entrance of the tooth into the material under the optimum angle for cutting will be ensured.
The rails can be fixed at a certain angle and to the frame, enabling a smooth edge to be made. Each disc has a value of the maximum thickness of such a cut at an angle of 90 and 45 degrees.
As a rule, special regulators allow smoothly changing the size of the protruding part of the cutting circle( vertical immersion and depth of cut) and the angle of the disc with respect to the base plate.
An indispensable condition for safe operation with this tool is the availability of reliable protection. In modern models, pendulum-type shrouds have been used to cover the working part of the disk. They are convenient in that, when you start work, they automatically move to the rear position, without hindering cutting, and when you move away from the workpiece, they return to their original position.
Do not disregard safety and remove covers when operating. Safety objectives are also provided for the circular saw devices, which prevent accidental activation. As a rule, these are two-button switches. Many models provide the ability to electronically control the engine speed( from two to five thousand revolutions per minute).
Some models have a soft start circuit, a constant speed control under load and a protection circuit for overheating. Another important part of the design is a special branch pipe, for the removal of sawdust and dust: they can be connected to a vacuum cleaner, which will collect all the garbage.
Guide rail for a circular saw - why do we need it?
The possibilities and usability of the tool are significantly increased if a saw with a guide bar is used. Such an adaptation can be purchased, and it is possible to make it yourself. As experts say, the importance of a quality guide rail is much greater for submersible and shadow cutting by circular saws.
Are quite popular options for directing "flexi".Flexible and resilient steel tires with rubber edge and special guide protrusions are very convenient to use. These devices have a small weight and take up little space in the collapsed position.
Equipped with a smooth adjustment of the vertical immersion of the cutting blade, the installation of cutting at an angle and fixing the depth of the cut, the circular saw with the guide bar turns into a multifunctional tool for professional use.
However, given the cost of industrial tires, it is possible to use as guides metal corners or boards with a flat edge, fixed at opposite ends by clamps. In this case, it is necessary to track the evenness of two measurements: the cutting line and the guideline setting.
By the way, the adjustable guiding stops available on many models have a short length and provide only parallelism of the cut to the edge of the material. It is clear that if the linearity of the edge is questionable, then the cut strip will have undulation. Therefore, a disk saw with a tire, which can be made from a pair of even strips of laminated chipboard, is preferable.
They are attached in parallel on the same base with an interval equal to the width of the thrust duralumin strap. It is screwed into the regular holes of the saw base plate. The thickness of the elements of the tire is chosen to be minimal for the least possible reduction in the removal of the saw blade. Of course, the design options of self-made tires can be different.
