Professional tool reviews for professionals
Ask a group of woodworkers what the best table saw blade height is, and you may soon yearn for the relative politeness of political or religious dialogue. Opinions abound. Some people say that the blade should not be 1/8 inch above the cutting surface, while others say that the blade should rise to the bottom of the esophagus (the space between the teeth).
Some people say that a height can prevent more kickbacks and minimize tearing. Then there is a common saying, that is the front angle (hook) angle. You may find that you have no answers-even if you have listened to the opinions of several professionals. This is not even the first time we have written it. So what is the correct height of the table saw blade? The following are some of the things you need to consider when setting the optimal table saw blade height-the same as we saw in the field table saw gun battle.
The angle of incidence is how the blade approaches the wood. The lower blade height has a lower angle. The force is mainly directed towards the operator, which can be dangerous in type 1 recoil, in which case the material is pushed back to the original direction by the front teeth of the blade. In the more dangerous case of Type 2 recoil—a piece of material that has been sawn is broken by the rear teeth passing through the board—the lower angle of incidence pushes the shrapnel to a lower point, threatening some sensitive areas.
Taller blades have a higher angle of incidence. Type 1 recoil is less likely because the front teeth are more downwardly inserted into the material under the force toward the table surface. However, a higher angle means that Type 2 recoil is more dangerous, because the shrapnel can be advanced on the higher part of the user (throat, face, head, eyes...you know) through the back teeth rising from the board.
The lower blade height means that more teeth will be in contact with the wood, resulting in more heat during the cutting process. This also means that the saw feed speed is slower due to the lower material removal efficiency. For hardwoods, this may burn the edges of the workpiece. For higher blade heights, the situation is the opposite-because there are fewer teeth in contact with the material, the cutting speed is faster and the temperature is lower. It is easy to understand why there are so many opinions about setting the optimal table saw blade height.
On a table saw, when the cut exits through unsupported fibers on the surface, the material is torn or chipped face down. This can be alleviated in many ways, but all other things being equal, a lower blade will cause less tearing, and a higher blade will cause more. We will discuss specific ways to avoid tearing in another article. Now, be sure to read our article on choosing the best table saw.
Some people will say that it is safer not to expose the blade to the necessary range. Others believe that the rotating table saw blade is dangerous at any height that makes it useful. So what is the verdict?
There is no doubt that the discussion will continue. But perhaps the importance of the height of the saw blade has been replaced by the safety tools and precautions taken by table saw users. As a woodworker said, "The correct cut is the safe cut." To minimize the dangerous type 2 kickback, the splitter on the old saw is good, but the more modern chopper is better. It can prevent the saw blade from passing through the rear teeth of the blade and generating projectiles.
Be sure to consider keeping the blade guard in place. Powerful saws and sharp blades can prevent Type 1 recoil, just like pushing and pressing feather boards and push rods. Many blades claim to be suitable for all purposes, but please consider blades specifically designed for materials and cutting types. This means that you should specify the number of teeth, rake angle (hook), etc. Of course, always wear goggles.
So what is the best table saw blade height? As you know, the answer is "it depends." Hope we have provided you with enough information to defend why you use the method you like. If you are a professional and have table saw blade height tips to pass on to our apprentice readers, please leave them in the comments below-or contact us to provide your own professional tips.
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I use a table saw at work every day, and I do believe that the blade gullet is almost completely exposed, so it is about 1/4 inch above the workpiece. The protective cover is very suitable for a large number of cuts, but not every cut can be carried out with the protective cover. The best thing you can do is to always maintain a sharp blade, use a putter as much as possible, and don't stand directly on the blade. If it feels sketchy, it might be.
I don't know, I am not a "professional", but I have a lot of experience with my table saw. I like to "make things" in the garage and relax! My opinion is that I did not experience any real problems when using the blade about 1/4 to 1/2 inch above the wooden surface. (Carbide tip) I got a smooth cut, no chips to the minimum, and no rebates. This is pine, fiberboard, oak, MDF/HDF and poplar. Of course, your mileage may vary-(blade condition, wood condition, blade speed)
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Professional tool reviews for professionals
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