Published at Monday, March 25th 2019. by Adelisa Legrand in Industrial Machinery.
Blade Materials. Diamond tipped masonry blades that are meant to cut plywood and hardwood are usually fabricated out of metal, but those that are designed to cut through harder materials require the use of even harder materials. The harder material is applied around the edge of the blade, with the metal core remaining intact.
Splitter and Anti Kickback PawlsOne of the leading causes of table saw related accidents is kickback, which occurs when a piece of wood gets ejected at high speed, back toward the operator. This can cause some serious injuries. This happens when the wood binds between the fence and the blade, and then gets caught by the teeth on the back on the blade. In order to prevent that from happening, many table saws are fitted with a splitter. A splitter is basically a small vertical blade made of metal or plastic, which holds the Cerf open behind the table saw blade. It's a simple solution that works, up to a certain point.
Obviously, the easiest way to know which blade fits your table saw would be to consult the instruction manual. Also, use some common sense. There is a finite amount of space inside the arbor, so you can't use just any blade. The space is also limited with the presence of a blade guard. Speaking of the arbor, the central arbor hole on most table saw blades is 5/8 inches in diameter, but then again, there are exceptions to that rule. If the diameter and the arbor are supported by the saw, you are on the right track.
Basic Table Saw Features. I consider myself pretty knowledgeable when it comes to most power tools, but it took me a long time to “crack” table saws. There are so many things you need to consider it is insane! And I am just talking about the basics. If you want to look at non-standard features things get even more complicated.
Safety Considerations. When making cross-cuts avoid using the miter gouge and fence at the same time. Why? Because when you slide the board towards the saw using a miter gouge the board will most likely bind against the fence. At this point I should remind you this will most likely cause kickback which will throw the board back at you, and at high speed! This is something you definitely don't want to happen – ever. My advice would be to dismount the fence, or set it a decent distance away from the board.
If you encounter some resistance while moving the fence, I would advise you apply some sort of lubrication like wax. Factory or stock gouges are sometimes poorly made, and most people correct this by purchasing an after market miter gouge. However, if you get a table saw with a bad fence and leave it that way, it's not a shortcoming for which you can easily compensate.
In the past, table saw blades were meant to cut only wood, but they are now able to cut through metal, plastic, and other materials. Mind you, most blades are still fabricated out of metal, but some also feature special alloys and materials in the teeth, and various carbon composites for the body. Before deciding on a blade, you need to look at several characteristics such as its diameter, the material it's made of, the material it's designed to cut, number of teeth, maximum speed, and price, among others. Of course, the blade needs to match your table saw as well. Now, let's see how you do all that.
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