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.
If you don’t have a table saw handy, and the rip cut doesn’t have to be precise, then a circular saw works fine. Then align the saw with your mark and let gravity help pull the saw through the cut. Making long narrow rip cuts with a circular saw is easy if you use your index finger as a guide.
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.
why do circular saws cut up instead of down Related Question:
Why does a circular saw cut upwards?
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.
Do circular saws cut up or down?
When appearance matters, make cuts with the good side facing down, as circular saws can splinter the wood on the top side. Making your cut line on masking tape can reduce splintering. Start over if you see that you’ve veered off from the cut line instead of trying to curve your way back on track.
Why are circular saws backwards?
Traditionally, all worm drive saws operated in a blade-left orientation. Furthermore, this orientation likely places the weight of the saw over the portion of the material the user wants to keep, making it easier to stabilize the saw during the cut.
Why wont 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.
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.
Do all circular saws rotate the same direction?
Circular Saws 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.
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.
Is it okay to cut wet wood with a circular saw?
If you’re cutting wet wood set the depth so that the entire gap between the teeth is clear of the board you’re cutting. This will stop your saw and cut line from getting clogged with wet saw dust.
How do you accurately cut a circular saw?
Using a Straightedge for Accurate Circular Saw Cuts Measure the exact distance from the edge of the circular saw’s shoe to the same side of the blade. Once you have that measurement, add it to your original marks and make a new line. Set the straightedge on the new marks, clamp it down, and make your cut.
Why are Dewalt circular saws left-handed?
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.
What is the benefit of a rear handle circular saw?
Because of the placement of the motor, Rear Handle Circular Saws get a heck of a lot more torque than a standard Sidewinder Circ Saw. Sidewinders get more RPM’s, but the torque and power beats speed when you’re cutting into hardwoods with a Worm Drive (rear handle) saw.
Why does my circular saw kickback at the end of a cut?
Overheating a saw blade can cause it to warp and result in a kickback. Buildup of sap on the blades, insufficient set, dullness and unguided cuts, can all cause an overheated blade and kickback. Never set a blade deeper than is required to cut the work piece 1/8 in. to 1/4 in.
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.
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.
Can you turn a wood blade around to cut metal?
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.
