How to use a circular saw. Circular saw

HOW TO USE A CIRCULAR SAW CORRECTLY

A craftsman uses a circular saw when he wants to be able to cut wood and man-made wood materials in any direction, accurately, quickly, and most importantly. safely. It is very important to choose a quality made tool with precise guides and reliable cutter guard. Even without turning it on, you can check to see if the tool is well balanced enough to make working comfortable and non-tiring. Some models have a built-in electronic control system that provides speed selection and a soft start when the saw is turned on. Electronics also can add power when the circular saw is under load.

As the diameter of the blade increases, the motor power increases, not to speed up rotation, but to create more torque to overcome the greater resistance to sawing because of the lengthening of the resistance lever of the material equal to the radius of the blade. General rule: the more powerful the motor for the same blade diameter the better the saw operates.

Powerful circular saws produce a lot of wood dust and sawdust. It makes the floor in the workshop slippery and dirty, and the dust in the air is as unhealthy as it is unpleasant. Saws with a dust extraction nozzle on the top rail throw sawdust aside. You can also use a dust bag that goes over the spigot or connect a hose from a vacuum cleaner to the spigot.

The body and blade tilt to any angle within 45° when the clamp is loosened. The angle can be set on a scale, but if the angle must be exact, it is better to check it with a test cut. Maximum cutting depths decrease as the blade tilts.

To prevent accidental activation of the saw, it is equipped with a fuse that must be pressed with the thumb before the circular saw can be operated with the trigger.

The top of the circular saw blade is housed in a stationary guard, the bottom. into the movable guard. As the blade deepens into the material, the lower sliding guard retracts under the influence of the workpiece and opens the saw blade. When the blade comes out of the material the spring loaded fence returns and closes the blade. Before using the circular saw, make sure the swing guard is working properly.

Clamping flanges on each side of the saw blade act as an anti-locking clutch. If the blade suddenly jams, they allow the clamp to slip, thus protecting the motor from overheating.

The comfortable, ergonomic handle and the auxiliary handle at the front of the tool provide safe and secure control of the circular saw.

Cutting depth can be adjusted by raising or lowering the body of the saw in relation to the base plate. There is a scale to set the depth, but many masters prefer to orient directly to the workpiece itself. In case of a through cut the blade should protrude from the other side of the workpiece by 2-3 mm.

When the wood is cut along the fibers, internal interfiber tensions are released, which can close the kerf behind the blade. To prevent jamming of the circular saw blade the riving knife is installed directly behind it. The clearance between the blade and the teeth must be within 2-3 mm. The tip of the riving knife itself should be 2-3mm. above the lower tooth of the blade.

If you want to saw fence posts or cut boards, you can do it with a relatively cheap saw blade. But if you want clean, finished material that comes straight out from under the saw and needs a symbolic planer or sanding, you should get a high quality blade. A first-class blade is absolutely essential if the saw is to be set up in a machining center for precise sawing of joints. The polytetrafluoroethylene (Teflon) coating on the blades reduces friction, which in turn reduces both the wear on the saw’s drive mechanism and the risk of burning the wood. Tungsten carbide-tipped teeth give a cleaner finish and last up to 10 times longer than standard saw teeth. Special saw blades for wood, metal, plastics and stone are available, depending on the power and tip of the circular saw.

Working with a circular saw

A small notch is made on the circular saw’s blade that acts as a sight or sight glass for freehand sawing. Make a few test cuts to get a feel for the relationship between the sight and the kerf left by the saw. When sawing, touch the mower blade with the marking line on the back side. Selected models have a second sight to follow the process, if the body of the tool is tilted 45°.

Holding the saw with both hands, place the front of the blade on the workpiece, aligning the sight with the marking line. Turn the tool on and confidently drive the blade into the material. At the end of sawing, let the fence close, turn off the circular saw and wait for the blade to stop before putting the saw down.

Sawing parallel to edge. All circular saws have a sawing ruler that guides the blade when parallel with the edge. A good ruler should be rigid with a secure fixture and clamp to ensure it is strictly parallel with the blade. Use the scale bar to set it up, make a test cut and check its accuracy.

Sawing with guide bar. If you want to make a cut too far from, or not parallel with, the edge of the blade, use clamps or temporarily nail a block to the surface of the workpiece and guide the side edge of the blade with it.

For simultaneous shortening of several boards to the same size, fix the base bar to the table, press the evenly trimmed edges of the boards so that the unaligned ends of them protrude over the edge of the table. Fasten the guide bar across the boards and shorten the boards with a circular saw in one pass.

Circular saw blades

For hand-held circular saws there are several kinds of circular saw blades, each of which is designed for working with certain materials or for certain purposes. First of all, discs are distinguished by the number, shape and size of teeth.

Saws with a few, mostly hard-alloyed teeth are used for cutting hard and soft types of wood in thick sections. The main disadvantage of these discs; they leave rough edges.

clean cuts

The more teeth a blade has, the cleaner it cuts. For delicate materials such as thin plywood, fiberboard or veneer sheets, 60- to 112-tooth blades are used. The shape of the teeth is also of great importance and they have already got names. “coarse tooth”, “Swedish tooth”, “wolf tooth” or “sharp tooth”. The special shape of the teeth allows either very fast cutting with simultaneous removal of sawdust from the cut or a very fine cut. In the latter case the rotational speed of the disc should not be too high. Also noteworthy is the added value of the Teflon coating, which prevents the blade from jamming in the wood.

Standard tooling

For the DIYer, two circular saw blades are sufficient, one with coarse carbide teeth and one with fine teeth and Teflon coating. A fine-toothed precision blade can be useful for working with a variety of materials. These discs cut not only wood, but also fiberglass-reinforced plastics and even non-ferrous metals. True, the cost of discs is quite high.

Any modern circular saw has a device that enables the cutting depth to be adjusted

When preparing the tool for work, it is very important to make sure that the position of the disc corresponds to the thickness of the workpiece. Follow the rule: cutting depth should be more than half the material thickness and half the height of the tooth

Guidance ledge

Almost all manually controlled circular saws have a plate with a projecting end at the front edge of the build plate (some machines have a notch in place of the plate) to help guide the saw in the right direction.

If the end of the blade (or the notch) coincides with the score line, the workpiece will be sawn correctly.

It is not easy for the owner of an old circular saw to steer the tool smoothly. Older models lack a dust extraction device and therefore produce a puff of wood dust in front of the guide bar. Always have to blow it off. With the latest circular saws visibility is always good even if the machine is not equipped with a dust extractor or vacuum cleaner.

Help with orientation

And yet, the guide tab only helps to control the movement of the circular saw, that is, the mere presence of the tab is not a guarantee of a neat cut: despite all the master’s efforts, the saw may move sideways. Therefore you should only rely on the overhang if the accuracy of the saw movement is not particularly important.

The overhang (or notch) at the front edge of the circular saw table helps guide the circular saw blade in the desired direction.

Protecting from chips

Many people believe that the chipboard cladding can be protected from splintering when sawing by placing adhesive tape on the trimmer line of the marking tape in advance. It does help, but only somewhat, as the photo below shows.

Veneer coating can be chipped even when the saw is guided carefully, although not to the same extent as without the face protection band. A neat sawing line for the trimmer is obtained by placing the part face down, because chips are only formed when the saw teeth exit the material

A neat line for the saw trimmer is obtained if the workpiece is placed face down, because chips are only formed when the saw teeth emerge from the material.

The adhesive tape on the laminated plate does not fully protect the coating from chipping when sawing.

A perfect line for the saw trimmer will be obtained if the part is laid face down.

What you need to know about circular saw construction

The design of all models of amateur and semi-professional level is almost identical. Expensive professional units are equipped with additional elements and functions, but if you don’t plan to open your own sawmill, you don’t need such a tool.

One of the main structural elements is the base plate. The tool is fastened directly to it. Despite its outward simplicity, this element is very important. The base plate can be made of aluminum alloy or pressed.

Stamping is cheaper. Such a plate is quite strong, but any more or less strong mechanical effects, even the usual fall, lead to deformation of the product. And it is impossible to get a quality cut from a saw with a deformed base plate. And you are unlikely to be able to straighten it by yourself. Die castings have lower stiffness than their cast analogs. So if you have a sufficient budget, it is better to buy a plate with a cast support. The only disadvantage of these products is that they can splinter if dropped

But in this case everything depends on the care and responsibility of the user

Almost all saws have a support leg mount. Thanks to this element you can get relatively precise parallel cuts. Almost all modern models have a parallel stop. It is attached to the front, but there are some models that let you attach it to the back or the front.

If you have very delicate materials to saw, it is necessary to have a special attachment on the base plate soleplate. Such attachments are usually included by the manufacturer. In professional models the base plates are equipped with a special groove so that they can work with the guide rail. With this element you can achieve the highest possible accuracy. However, the guides are usually not included in the kit, you have to buy them separately.

How to use the tool

After that it is necessary to understand how to work with a circular saw. First make sure there is nothing under the workpiece, it must lie on a flat surface. The basic sequence of operations is as follows:

• Use a pencil to mark a line along which the blade will run.
• Set the parameter depth at which the cut will be made. The edge of the blade should only protrude slightly below the edge of the workpiece. For example, if its thickness is 30 mm, then its depth should not exceed 40 mm.
• Take into account that the cutting edge of the blade must be positioned exactly at the mark.
• Proceed to cut, looking at the guide on the right strictly straight (not at an angle so as not to distort your perception).
• To understand how to properly saw with an electric saw, you need to constantly monitor the guide. Hold the base flat on the workpiece.
• The tool is to be pushed with sufficient force. This is to make the movement confident, but at the same time without excessive pressure.
• At the end of the cut you must make sure that the cover is back in its original position (for safety reasons).

Figuring out how to use a manual circular saw is not difficult. At the same time, the tool must be properly prepared for work. When making a cut, apply enough force so that the disc moves in a straight line.

A little about the available teeth

When selecting the saw to be used it is necessary to take into account the characteristics of the teeth. This is necessary because a particular material requires a particular type of.

Circular saws with standard teeth are used for soft wood and plywood.

Special carbide tines are suitable for hardwood or chipboard. In addition to their special shape and much more, they have a winning solder.

For jobs such as longitudinal sawing of boards, a disc with a small (up to 24) number of teeth is suitable. The smaller they are, the greater their size. Accordingly, the disk will be sawn faster, but the cut will be rough.

Blades with teeth up to 36-48 are good for thin cuts. For working with hard wood materials or nails, 54 trapezoidal solders are required.

Teeth can be positively inclined, e.g. when cutting wood. A disc with a negative inclination is used for clean cuts in aluminum and plastic.

How to use a circular saw correctly

Thoughts about buying a circular saw arise when you need extensive work to cut a beam or planks along the material. Of course, to cut boards, if desired, you can use a saw. a hacksaw or a jigsaw. Skilled craftsmen can do it virtuoso! However, if straight-line sawing is required, it is the circular saw that will be needed for such work. This power tool is used for cutting wood as well as plastic and soft metal.

It would seem that the question of how to use a circular saw is quite simple and the answer is clear. However, it is not so simple.

What you should know about the circular saw?

“Circular saws are simple. They consist of the base plate and the saw itself. The base plate is made of an aluminum alloy or pressed steel sheet. There are three types of circular saws: stationary, manual and combined.

Even before starting work, the maximum cutting depth must be determined. This point is the main criterion when choosing a hand saw. It makes sense to ask for what purpose you need the tool: for professional or for household needs?

Also in this case, the size of the tool matters. As a rule, a medium-sized circular saw is preferred. because of its maneuverability and ease of operation. For a significant amount of work associated with linings and thin boards in the construction of the house, you will need a stationary circular saw of large size. The smallest tool is suitable for thin laths.

Single-phase circular saw with a power of 220 watts can easily cope with cottage and household chores.

For larger volumes, three-phase (380 W) tools are needed. They must be grounded according to safety rules.

Types of circular saws

For domestic needs are quite suitable for manual versions, capable of cross, longitudinal and oblique cuts. They are distinguished by their maneuverability, lightness and relatively low price.

Some models allow you to make cuts not only from the end, but also in any place thanks to a special plunge function. Because of the possibility of tilting in relation to the plate, such models saw the material at different angles.

The base plate of such a tool is molded (suitable for home use) or cast (for professional tools).

Where more work is involved, you will need a stationary circular saw with a box-type frame. They have been used before. Modern models are made very compact and can be placed on work surfaces, such as workbenches.

Professionals require more massive tools that can be placed directly on the floor of the room. They can influence the cutting depth thanks to the moving table. The circular saw blade remains stationary at all times. Thanks to this the possibilities of the circular saw are very extended.

If the work is often done with a variable workload, combined versions are suitable. They differ from manual circular saws in that they have special mounts in their bodies, allowing stationary operation on any horizontal surface. With the saw blade facing upwards.

Benefits of electric circular saws

Different types of circular saw blades.

There are saw models that control the load of the tool during operation, protecting it from overheating, and are capable of controlling the speed of the mechanism.

Most circular saws have an overload indicator and their motor brushes. Disc changing is very safe because of built-in rapid braking and locking of engine.

Selected electronic saws have the ability to measure blade speed while sawing. This feature allows you to work not only with wood, but also with plastics and some soft metals.

advanced models have an electronic soft-start system. It makes these tools quickly gain speed at a smooth speed.

It is very difficult to get hurt because these models have a blade guard that protects the saw’s teeth. It moves smoothly and not jerkily away from the disc when you start. A number of this type of tool are equipped with a pendulum guard and feed roller.

Many models for both professional and domestic use have special outlets to connect a vacuum cleaner. Despite the reduced maneuverability, such a tool lasts longer, because the number of negative factors is significantly reduced.

A little about the available teeth

When choosing a saw to work with, it is necessary to take into account the characteristics of the teeth. This is necessary because a particular material requires its own type.

Circular saw blades with standard teeth are used for soft wood and plywood.

For hardwood or chipboard special carbide tines are suitable. In addition to the special shape and larger number, they have a hammer point.

For dressing work, such as ripping boards, a blade with a small number of teeth (up to 24) is the right choice. The fewer they are, the bigger their size. Accordingly, the blade will be faster to cut, but the cut will be coarse.

For finishing cuts, discs with teeth up to 36-48 are suitable. Working with hardwood material or boards with nails will require 54 trapezoidal blades.

The inclination of the tines can be positive, the kind that cuts the wood. A circular saw blade with a negative inclination is used for clean cuts in aluminum and plastic.

About quality and results

Everyone likes a job well done. How to work with a manual circular saw correctly and thus achieve a quality result?

First of all, a quality cut depends on the type of blade and its rotation speed.

Watch out for the saw’s lateral and longitudinal balance. Cutting performance depends on the balance of the machine. Any misalignment causes discomfort, strain and fatigue.

The quality of the disc sharpening also has a big influence on the working process. This is especially true of low-power models. A variety of places can be sharpened, but the important thing is to do it before you start.

How to Use a Circular Saw Video

How to correctly use a circular saw

Thoughts about buying a circular saw arise when you need a lot of work to cut a beam or boards along the material. Naturally, to dissolve the boards, if desired, you can use a saw. a hacksaw or jigsaw. Masters will manage virtuoso! But if straight sawing is required, a circular saw is the right choice. This power tool is used for cutting wood, as well as plastics and soft metal.

Compacting an electric circular saw.

It would seem that the question of how to use the circular saw is quite simple and the answer is clear. But it is not so simple.

What you should know about the circular saw?

“Circular saws are simple. They consist of the base plate and the actual saw. The base plate is made of dural alloy or pressed iron sheet. Using a simple circular saw with a circular saw; 5.2 videos on how to choose. There are three types of circular saws: stationary, hand-held and combination saws.

Even before you start working, you should find the highest depth of cut. This point is the main consideration when choosing a hand saw. It makes sense to ask what you need the tool for: professional or household use?

The size of the tool also matters in this case. As a rule, a medium-sized circular saw is preferable, because of its maneuverability and operating comfort. For demanding jobs like linings and thin boards in home construction you will need a stationary circular saw of bigger dimensions. For thin laths the smallest tool is suitable.

Single-phase circular saw with a power of 220 W will easily cope with cottage and household works.

For big volumes three-phase (380 W) tools are needed. According to safety rules, they must be earthed.

Types of circular saws

For household needs, manual versions capable of transverse, longitudinal and oblique cuts are quite suitable. They are easy to maneuver, lightweight and relatively inexpensive.

Some models allow making a cut not only from the end face, but also in any place thanks to a special immersion function. They can saw at different angles of the material, thanks to the possibility of tilting them in relation to the board.

The base plate of such tools is molded (suitable for household purposes) or cast (for professional tools).

Larger sawing jobs require a stationary circular saw with a box-type frame. They have been used in the past. Modern models are made very compact and can be placed on worktops, for example, workbenches.

READ STIHL chain saw starts up and then shuts down immediately

For professionals, you need more massive tools that are placed directly on the floor of the room. They are able to influence the depth of cut thanks to the moving work table. The blade remains stationary while working. How to make a table for a circular saw with your own hands? See photos and videos of our circular saws. That gives the circular saw a wide range of possibilities.

If the work is often done with a variable load, combination variants are suitable. They differ from manual saws in that they have special mounts in their body, giving the possibility of stationary work on any horizontal surface. At the same time the saw is secured with the disk upwards.

Benefits of electric circular saws

Different types of circular saw blades.

There are saw models that control the load of the tool during operation, protecting it from overheating, and can control the speed of the mechanism.

Most circular saws are equipped with an overload indicator and their motor brushes. Changing discs is very safe thanks to the built-in quick-braking system and locking the engine of the machine.

How to work properly with a circular saw

Safety rules for circular saws

Safety rules and tricks of circular saws. On the break

Hand circular saw ruler or how to cut evenly.

I set a goal to saw straight. As a result this simple device appeared. ;))))

Some electronic saws let you measure the blade RPM while sawing. This feature allows you to work not only with wood but also with plastic and some soft metals.

advanced models have electronic soft-start system. This gives these tools a rapid, even speed.

Injury is very difficult because these models have a blade guard that protects the saw’s teeth. It moves smoothly without jerking when starting work. Some tools of this kind are equipped with a pendulum cover and feed roller.

Many models for both professional and home use have special outlets to connect a vacuum cleaner. Despite the reduction in maneuverability, such a tool lasts longer, because the number of negative factors is significantly reduced.

A little about the available teeth

When choosing a saw for the job, you need to consider the characteristics of the teeth. In this video I show how to make a home-made saw guide for handheld circular saws. This is necessary because a particular material requires its own type.

Circular saw blades with standard teeth are used for soft wood and plywood.

READ How to choose the right tool for sharpening chain saw

For hardwood or particle board, the special carbide tines are suitable. In addition to the special shape and a larger number, they have a bit of a winner.

For carving jobs, such as longitudinal sawing boards, the disc with a small (up to 24) number of teeth will be good. The smaller they are, the greater their size. Accordingly, the disk will be faster to cut, but the cut will be rough.

For finishing cuts, discs with teeth up to 36-48 are fine. Working with hardwood or nail heads requires a blade with 54 trapezoidal tips.

Circular saw for wood: choice and rules for working with the tool

There are many tools for working wood. In this article we will consider the circular saw. This tool quickly and accurately cuts through wood. High-speed circular saws allow you to saw all wood materials. Let’s take a closer look at this electric tool.

A circular saw is also called a circular saw or a parquet saw. First began to be manufactured in the 20s of the XIX century. Nowadays, circular saws have a lot of possibilities with different options. Circular saw by its technical structure is considered one of the most complex tools. Circular saw is designed for longitudinal or cross cuts in wood and its derivatives. The circular saw makes a precise cut, unlike a jigsaw or a chain saw. The circular saw copes not only with wood, but also with plastic, slate, organic glass. The circular saw can be manual or stationary. Manual circular saw is mobile, allows you to perform work in any place. Stationary saw has great power and the ability to cut not a small amount of wood.

Using the circular saw in the garden and in construction

The circular saw is suitable for serious construction work as well as for home garden work.

• Construction workers use the circular saw to accurately cut lumber, boards or fiberboard. Accurate cuts are important at construction sites, so the circular saw does the job just fine.
• In the garden the circular saw will also be useful. With its help you can quickly and accurately saw the desired wood. Make firewood for the winter, take apart an old fence or barn. The saw is easy to operate, so it can be operated by anyone.

The following points can be attributed to the merits of the circular saw:

• Saw makes it possible to accurately cut wood. Due to the fixed position of the saw blade it is possible to achieve a precise line of cut.
• Low weight of circular saw. Low weight of the circular saw makes it easier for a person to use power, it affects the quality of woodworking.
• Circular saw makes all types of cuts. Saws make longitudinal and cross cuts, and can change direction while working.
• High price. All circular saws are equipped with a system for adjusting the position of the cutting unit of the equipment, this is the reason for the high price.
• Using circular saws creates problems when cutting workpieces that are too small in width.
• Without electricity, the saw cannot be operated. Some saws have a wireless function. The saw requires a great deal of power, so even the most powerful battery packs are good for no more than 60 minutes of use.
• Complex shape cuts are not possible with a circular saw. It is only for cutting longitudinally or transversely. Shaped cuts are only possible with a jigsaw.
• Battery-powered saws are heavy and limited in thickness of cut. The maximum possible plunge is 8 cm.

Denise Lynn’s dream

The saw can be sized. And it can also mean the building of something new. In general, it is a very good omen that means work, creation, construction of something new.

Sawing also means tree trimming. Are there areas in your life that should be thinned out to allow new shoots to break through? This sign can refer to the emotional wounds of the past that have begun to heal, but still make themselves known. Analyze other symbols and situations to more precisely identify areas that you should heal as soon as possible.