Courtney White Table Saw August 27th, 2018 - 16:16:35
Most table saws use the miter gauge and miter slot system to allow for crosscutting. A miter gauge consists of a cast metal protractor head attached to a length of metal bar. The bar rides in corresponding "miter slot" in the table saw's surface. Protractor on the "no frills" miter gauges that come with most table saws can be set to crosscut stock at any angle between 90 and 30 degrees and, if well made, do a serviceable job with most "routine" crosscutting.
Many table saws can be purchased with optional extension wings. Table extension wings bolt on to the right and left sides of the table and increase the surface area of the saw to help support wide stock and sheet materials. On a heavy duty stationary saw, the extensions are usually cast iron, while on smaller saws, they may be made of lighter stamped steel or the lighter "webbed" style of cast iron.
The saw blade is mounted on an arbor with an arbor nut and the arbor is turned by the motor usually via pulleys and 1 to 3 V-belts. The arbor is mounted into the trunnion inside two or more arbor bearings. These should be sealed from dust for obvious reasons. The size of the arbor determines the size of the hole in the middle of the saw blade. This is usually 5/8" for a 10" blade and 1" or larger for blades larger than that. The strength and alignment of the arbor and the bearings which support it determine the accuracy and smoothness of the table saw. Vibration and noise should be kept to a minimum and the saw blade should be straight in the table from front to back at all elevations and bevel angles.
Cabinet table saws have the circular saw attached to a table with a cabinet. It is the largest and the heaviest of the table saws and therefore is not moved around like the other table saws. The cabinet table saw is more durable and has less vibration which makes for a smoother cut. However, the cabinet saw is more expensive than the other types of saws and usually requires the installation of a heavy circuit. The cabinet saw also has a height and tilt adjustment feature and has better dust collection than the other models.
Saws specifically designed for hobbyists and home use are usually outfitted with motors under 3 HP and can be operated on standard 110 volt residential circuitry. In general, motors in this class are powerful enough for routine cutting of sheet goods and hardwoods up to 1'' thick. Professional-class saws, on the other hand, have motors in the 3- 5 HP range and require a 220 volt power supply. Motors in this category are designed to stand up to hours of continuous duty, and have enough power to cut thick, heavy hardwood stock without bogging down.