Published at Monday, January 14th 2019. by Alaine Mercier in Industrial Machinery.
Blade Adjustments. Axis Adjustment Modern table saws allow the blade to be adjusted in various ways. The blade can be adjusted both vertically and by changing its axis. Vertical adjustments are made by exposing more of the blade, which changes the depth of cut. This comes in handy for thick pieces of wood as well as for non-through cuts. By adjusting the axis of the blade, you can make cuts at a certain angle, thus making bevel cuts, which are good for creating joints.
The blade tilt hand wheel is located on the side of the saw and allows you to tilt the blade up to 45 degrees away from the fence. The hand wheel which allows you to adjust the tilt of the saw blade is usually located on the left or right side of the unit depending on which way the arbor is made to tilt. Portable table saws usually don't give you as much control as professional cabinet saws though, and they often combine elevation and tilt adjustment in one wheel.
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.
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.
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 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.
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.
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