Published at Monday, January 14th 2019. by Alaine Mercier in Industrial Machinery.
Blade RPM. The maximum speed of a blade is usually expressed in RPM (revolutions per minute). One thing you need to look for is the speed of the table saw, which must never exceed the speed of the blade. Blades are designed to rotate at a certain speed, and using it on a table saw which exceeds that speed will cause the blade to break apart due to centrifugal force. This is pretty much everything you need to know about blades. If you decide you want to learn even more about blades and their properties, this should serve as a good base for you to build upon.
Miter Gouge. An Angled Cut Using a Miter Gouge. How does a miter gouge work? It's pretty simple. In essence it is a guiding device that moves inside the miter slot on the saw. The key component is the piece that sort of resembles a half-moon, and pivots around the point of its connection to the guide. Thanks to the locking mechanism you can choose any angle between 45 and -45 degrees.
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.
On/Off Switch. The on/off switchThese days, table saws come with an on/off switch that allows for easy access should the situation call for it. Usually these switches are located at the front of the saw, and preferably the off button should be large enough to be operated using your entire hand (protected of course), elbow, or even your knee. The easier it is to switch the table saw off, the better.
Now, the most common type of fence found on table saws at the moment (especially the cabinet type) is the Biesenmeyer Commercial “T-square” fence, or in most cases manufacturer's copies and offshoots of that design. It's the most popular design because it is easy to adjust and operate, is made out of welded steel, accurate, and best of all there is not much that can go wrong with it.
Blade Types. Rip vs. Crosscut blades the two basic types of table saw blades are rip and crosscut blades. Rip blades have a smaller number of teeth and larger gullets, which means there's more room to remove the shavings and dust. These blades are designed to cut along the grain of the material on the table, but although they cut faster, the resulting cuts are rougher.
For instance, the teeth on blades that cut through wood are made out of steel or carbon steel, which ensures their durability. Then there are masonry blades, which have diamond-tipped teeth, and you can also find blades that are made to cut through aluminum and steel. Such blades have teeth that are treated with hardened metal or tungsten carbide. Finally, there are blades designed to cut through PVC and acrylic materials, which have teeth made out of low-temperature tungsten carbide.
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