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.
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.
Most of us have been there at some pointstaring at a blade in one hand and a saw in the other wondering what the correct circular saw blade direction is. Getting the circular saw blade teeth going the correct direction is what’s at the heart of the matter. 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.
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.
Bring the saw up to full speed, lift the guard, and slowly push the body of the saw down to start the cut. TIP: Make sure to start back far enough so that you only push the saw forward; never drag a spinning saw back. If a board is too wide for the saw shoe to hang over the edge during a rip cut, hold a narrow scrap of wood between thumb and forefinger, bracing your finger along the edge of the board, and butt the saw shoe against the edge of the wood scrap as you push both along the board.
why do circular saws cut up Related Question:
Does a circular saw blade 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.
How do you stop a kickback with a circular saw?
Kickback happens when the saw blade binds or stalls suddenly in the wood and the saw gets driven back toward you. So the key to preventing this is to make sure your blade doesn’t bind in the wood.
What causes a kickback?
Kickback occurs when the teeth of the saw blade, moving at tip speeds of 120 miles-per-hour impart sufficient force to cause the workpiece to move in a violent and unexpected manner. Skil saw kickback tends to throw the saw back at the operator, its blade often running over fingers as it moves backwards.
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.
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 won’t my circular saw cut all the way through?
Here are some reasons your circular saw keeps stopping: Make sure your work piece is properly supported so it doesn’t pinch the blade which could also cause kickback in addition to stopping. Damaged, warped, loose or dull blade. Motor malfunctioning or overheating. Cable problems like frayed cord or weak connection.
Why is my circular saw stopping mid cut?
The circular saw stops in the middle of work when the blades of the saw are dull or damaged and are not functioning correctly. Moreover, it can also stop working when the motor of saw is not working properly. However, there could be some other reasons like cable issues, voltage issues etc.
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.
Why does my circular saw burn the wood?
A dull blade will make it hard to cut quickly, and the slower the feed rate of the saw, the more friction against the wood and the greater the likelihood of scorch marks. 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.
Why does my circular saw spin clockwise?
This means that the circular saw cuts wood on the upstroke. For a right handed circular saw (most common), this means that the blade rotates counterclockwise, which is similar to the table saw. For a left handed circular saw, the blade rotates clockwise. Align the arrows on your blade to determine their rotation.
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.
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.
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.
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 causes kickback on a motorcycle?
Kickback occurs when a piston is coming up on top dead center (TDC) on the compression stroke at the end of a kickstart attempt but does not make it all the way. Instead, the compression pushes the piston back down the cylinder in the reverse direction.
