When it comes to using a saw, there are many things to consider. One of the most important factors is which direction to put the saw blade in. Many people wonder why they should put the saw blade in backwards, and there are actually several good reasons for doing so.
What is Backwards?
Before discussing the reasons for putting a saw blade in backwards, it’s important to define what “backwards” means in this context. When a saw blade is put in backwards, the teeth of the blade face the opposite direction of the cut. In other words, the saw blade is upside down compared to its normal position.
Reasons to Put the Saw Blade in Backwards
Reduced Tear-Out
One of the main reasons to put a saw blade in backwards is to reduce tear-out. Tear-out occurs when the saw blade tears the wood fibers as it cuts, resulting in a rough, jagged edge. By putting the blade in backwards, the teeth of the blade cut in the opposite direction, which can help to prevent tear-out. This is particularly important when working with materials that are prone to tear-out, such as plywood or veneer.
Less Splintering
Another advantage of putting the saw blade in backwards is that it can reduce splintering. Splintering occurs when the saw blade cuts through the wood and causes the wood fibers to separate along the cut line, resulting in rough, jagged edges. By putting the blade in backwards, the teeth of the blade cut from the bottom up, which can help to prevent splintering. This is especially helpful when working with delicate or expensive materials, where splintering can ruin the entire piece.
Improved Finish
Putting the saw blade in backwards can also improve the finish of the cut. When the blade is in its normal position, the teeth of the blade tend to pull the wood fibers upwards as they cut. This can result in a rough, uneven surface that requires additional sanding to smooth out. By putting the blade in backwards, the teeth of the blade push the wood fibers down as they cut, resulting in a smoother, cleaner surface that requires less sanding.
When Not to Put the Saw Blade in Backwards
While there are many benefits to putting the saw blade in backwards, there are also some situations where it’s not recommended. For example, when cutting thick or dense materials, such as hardwoods or thick plywood, putting the blade in backwards can cause the blade to bind or stall. This can be dangerous, as it can cause the saw to kick back or even break the blade. Additionally, when cutting materials with a laminate or veneer surface, putting the blade in backwards can cause the surface layer to peel away from the substrate, resulting in a ruined piece of material.
Conclusion
There are many good reasons to put a saw blade in backwards, including reduced tear-out, less splintering, and improved finish. However, it’s important to be aware of the situations where it’s not recommended, such as when cutting thick or dense materials or materials with a laminate or veneer surface. By understanding the advantages and limitations of putting the saw blade in backwards, you can make an informed decision about which direction to use for your next project.
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Frequently Asked Questions about Why Put The Saw Blade In Backwards?
What is the benefit of putting the saw blade in backwards?
Putting the saw blade in backwards can reduce the amount of splintering that occurs on the top surface of the material being cut. This is especially useful for delicate materials like veneer or laminate.
Can any type of saw blade be put in backwards?
No, not all saw blades can be put in backwards. This technique is only suitable for saw blades that have teeth with a positive hook angle. Blades with a negative hook angle should not be put in backwards.
Does putting the saw blade in backwards affect the quality of the cut?
Putting the saw blade in backwards can affect the quality of the cut, but it depends on the type of material being cut and the type of saw blade being used. Generally, this technique is best used for materials that are prone to splintering, but it may not be suitable for all types of cuts. It’s always best to experiment and test the technique on scrap material before using it on your final project.
Is putting the saw blade in backwards safe?
Putting the saw blade in backwards is generally safe, as long as you follow proper safety procedures when using the saw. However, it’s important to note that this technique may cause the blade to cut differently than it normally would, so you should always take extra care when using the saw in this way. As with any sawing technique, it’s important to wear appropriate safety gear, such as eye and ear protection.
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