The circular saw is one of the most widely used tools in various work areas such as carpentry, masonry, construction, decoration, among others. It offers the power required to cut thick or large wood, whether it is perfectly straight or bevel sawing
How to cut wood with circular saw
- Place the saw blade in line with the cut line on the outside of the work piece.
- Start the cut and move the saw, holding the blade along the cut line.
- Use the saw’s laser guide to make the entire cut when priming is good.
How to use a circular saw for beginners step by steps?
- Understand the different types of circular saws
- Observe the characteristics of the saw
- Learn the basic uses of the different blades
They differ in their composition, the number of teeth, the width of the cut and the quality of the blade.
Some are going to have a high speed steel blade when you buy them new.
- Blades with diamond edges. These blades are made of special metal alloys with industrial diamonds embedded in the edge (around the edge of the blade) and they are designed to cut concrete, composite materials with cement, and masonry products like cinder blocks and bricks.
- Blades in special hardened alloys. They have “fine” hardened carbon steel teeth, that is to say small and very close to each other, for cutting metal plates such as galvanized sheets for the roof or aluminum pipes, copper or brass.
- Plinth boards.These blades can be adjusted to achieve different cutting thicknesses (i.e. different amount of material cut as the blade passes). These blades make it easier to cut plinths and grooves in timber.
- Finishing blades.They have fine teeth for making smooth, precise cuts in finishing materials such as moldings and panels.
- Provide support for the material to be cut: This is to prevent the blade from reacting with any surface that might be under the cut you are making. For example, do not lay the cutting board on the floor or concrete floor.
- Make marks on the wood to be cut: Use a tape measure, ruler, or other tool and use a square (steel or triangular) to mark the path of the blade along the length of the cut.
- Set the saw to the correct depth of cut: Do not leave more blade length than you really need. If you need to cut a 40mm thick wooden board, do not keep a blade larger than 45-50mm. This helps reduce recoil.
- Keep the guard in position: It should snap back into place as soon as you lift the saw off the board you are working on. It should also slide smoothly as you push the saw. Make sure it is in the down position before setting the circular saw on the material to be cut.
- Align the saw: Look at the lower part on the right side and line it up with the pencil mark you left. Find the two guide notches on the front: The one on the right makes a cut with the blade in the normal position and the other makes a cut at a 45 degree angle. Line up the notch with the pencil line.
- Start cutting after checking the front of the blade. Monitor the guide at all times. This puts you in a position that will help you look along the pencil line and avoid sawdust.
- Watch the base of the saw while cutting. Make sure to keep the base of the circular saw flat on the wood you are cutting.
- Push the saw into the material. Push hard enough for the blade to cut it, but avoid pushing too hard so that the cutting speed does not appear to be slowing down or the blade gets stuck. A sharp blade will go through any material with little effort.
- Make sure the bottom guard pops back into place. Check it when you take the saw out of the cut. Even a protection in good condition will sometimes get stuck in the material if a piece comes to block the mechanism
Preventive and safety measures when using the circular saw
There are several and diverse safety measures that must be implemented with respect to the use of a circular saw . We will describe these prevention measures in the different phases of use of the instrument, and the additional safety measures according to the type of circular saw that is being used.
Before using the tool
- The cutting tool should only be used to do the job for which it was designed.
- The user must know and become familiar with the work instrument before using it for the first time.
- Particular attention should be paid to the information and warning plates on the tool.
- The switch on and off the circular saw must be located within easy reach of the user, and in such a way that it cannot be accidentally pressed.
- A circular saw has protective elements that must be verified before starting work. In the event of any irregularities, the machine must not be used.
- The conditions of the blade or cutting disc must be validated, before starting to work. In the event that the disc is defective, it must be replaced immediately.
- Only use cut-off wheels that are suitable for the tool, and for the workpiece.
- To mount the cutting disc, disconnect the circular saw, use protective gloves and take care that the disc is in the correct direction of rotation.
- Under no circumstances should the machine be used in the rain, snow, or in strong wind
Can I use circular saw to cut tree branches?
Since there are many types of saws that were designed for trimming, pruning and cutting, it is important when people understand what makes them different before buying one. Even if you may try to use a circular tree in cutting branches, it is not advised. It is always good to use the saws for whatever it was designed for.