The saw’s motor runs the blade rotation in a way that the circular saw teeth direction points up as it enters the wood you’re cutting. It’s intentional to create the most stable, accurate, and safe cutting. As the blade teeth hit the material, they rip from the bottom through the top.
Unlike table saw blades that rotate clockwise, circular saw blades have been designed to spin in an anti-clockwise direction. Circular saw blade teeth always point up on the front side of the saw. When using circular saws, make sure that the blade points to the opposite direction of the table saw blades.
A circular saw blade spins upwards as it forces the wood to be held between the blade and the base of the circular saw. The teeth on your circular saw blade should point in an upward direction at the front of the saw. All circular saw blades spin in an upward direction with the teeth pointing up towards the base of the saw.
In layman’s term, the teeth of a circular blade should face such a direction so that the tips of the blade dig into the wood. Almost all circular saw blade would have arrow marked which would tell you the direction the blade should rotate. The blade of a circular saw should be fixed so that its teeth face the direction of spin.
Replace the 24-tooth blade that came with the saw with a 50- to 60-tooth blade for cleaner crosscuts in solid wood, veneered plywood, and other sheet goods. Because a circular-saw blade cuts on an upward rotation, the bottom face, in which the teeth enter the cut, will almost always have a clean, tear-out-free surface. “A custom edge guide for your saw not only beats tear-out, but also makes it easy to align cuts. Start by building a jig based on the drawing below; adjust the width as needed for your saw. We made ours long enough for crosscuts in 4′-wide sheet goods. Make the base’s cutting side about 1⁄2” wider than the distance between your saw’s blade and the footplate edge below the motor.
why do circular saws cut upwards Related Question:
Why do circular saws cut up instead of down?
The teeth of circular saw blades are intended to cut upwards into the material from below and this is for safety purposes. It is important that you should not spin them in a different direction just like you spin a table saw blade.
What happens if you put a circular saw blade on backwards?
You can run a saw blade backwards and it cuts pretty well. However it is not at all a good idea. The two big reasons not to do this is that saw tips are much more likely to come off if the saw blade is run backwards and that the whole saw blade is much more likely to come apart if it is run backwards.
Why does my Dewalt circular saw keep stopping?
Most of the time, a circular saw keeps stopping because the blade gets stuck in the wood or material. This is due to the blade not being powerful enough to get through the material. It could also be because the blade is damaged or the motor is malfunctioning.
Which way should blade face on circular saw?
When installing a new blade, make sure the teeth are pointing downward to enable a clean cut through the workpiece. Upward-facing teeth can cause a severe injury to the operator.
Do circular saw blades cut up or down?
Circular saws cut on the upward stroke, which means that they rotate in a clockwise fashion, cutting from the bottom up. This is why when you’re using a circular saw, the side of the wood that will be your “good” side should be facing down.
Why is my circular saw burning the wood?
Pushing the stock through the saw too slowly is a common cause of saw blade burn. Sometimes a blade that feels dull might only be dirty. If wood pitch resins build up behind the teeth of the blade, the cutting speed will slow down, increasing the chances for burns. Commercial blade cleaners are sold for this purpose.
Can you cut metal with a wood blade?
While a metal-cutting saw has a collection bin to prevent metal chips from getting into the machine, a woodcutting saw isn’t designed this way. If you do decide to use a wood saw on metal, only use a 7 1/4-inch blade and preferably a worm drive blade, which provides extra torque.
Can I cut metal roofing with a skill saw?
Always make sure you wear your gloves. It’s very easy to cut yourself on the metal roofing, if you don’t have some protective gloves on. You don’t want to use the high speed of a skill saw, or any type of circular saw, because it will create too much heat.
Is there a left and right handed circular saw?
Here’s a hint—it’s not by accident that manufacturers don’t call these “right-handed” and “left-handed” saws. Our Pros will tell you that it’s all about what you get used to and are comfortable with. In fact, most have both types of saws for different applications.
How do I know if my circular saw blade is dull?
Look for worn-down, chipped, broken and missing teeth or chipped carbide tips that indicate it’s time to replace a circular saw blade. Check the wear line of carbide edges using a bright light and magnifying glass to determine if it’s beginning to dull.
What does a brake do on a circular saw?
Electric Brakes – An electric brake stops the motor in about two seconds after releasing the trigger, while a saw without an electric brake will take about 10 to 15 seconds to stop. The electric brake works by reversing the flow of electricity to the saw motor.
Why is my saw getting stuck?
The wood you are sawing is closing the kerf and pinching the blade, Your cut isn’t straight, The set of the saw teeth is not large enough, so the kerf created by the blade isn’t wide enough to allow the saw room to pass without undue friction, or. Your saw teeth are too fine for the wood you’re sawing.
Why do cordless circular saws have the blade on the left side?
The placement of the cordless saw blade, on the left side, gives you a clearer line of sight when you cut. The reason for this is because the main bulk of your circular saw is not blocking your view. Cordless circular left-handed saws provide you better movability.
Can I put a metal cutting blade on my circular saw?
Only blades and discs specified for cutting metal should be used. These professional circular saw blades are perfect for cutting through aluminium, copper, lead and other non-ferrous metals; while these diamond cutting discs will make light work of cutting through stainless steel.
What is the space between two protruding teeth on a saw blade called?
Gullet (handsaw) The space between a saw’s teeth, where the saw dust is carried out. It is an equilateral triangle, just like the file that shapes the teeth.
