Edith Hart Table Saw August 28th, 2018 - 15:28:15
The bench top model is preferred for those who are looking for a table saw that is portable and less expensive; however, remember that you always get what you pay for. The bench top saw has the least amount of capability out of any of the table saws. With the decreased size and weight of the saw, it is less durable and there are greater restrictions of the size of projects one can do.
Beginning at the bottom, the table saw base houses the working parts of the saw, including the trunnions, the arbor assembly, the sector gears, and sometimes the motor. On some saws, the base is a "cabinet" type, meaning that a fully enclosed base extends all the way to the floor. Other saws have an open base, meaning that the base consists of a metal box that surrounds the internal working parts of the saw on four sides, but not the bottom. Open base saws have legs that extend downward from the bottom of the base to the floor.
My ideal would be to never have a speck of dust reach the gears of my table saw trunnion and that all sawdust would be sucked away from the saw blade and out of the machine as soon as it was made. I would never need to clean out sawdust from inside the saw cabinet and the trunnion would always operate smoothly and easily. While I don't expect to ever see my dream fully realized, there are saws on the market today that closely approach this level of efficiency in sawdust extraction.
There are four main classes of table saws: contractor saws, benchtop table saws, cabinet saws and hybrid saws. When deciding between portable and floor standing table saws, the main thing you're trying to do is balance durability with portability. Since most portable types of equipment do not have the same durability features, they typically do not last as long as their less portable counterparts.
One drawback of lighter-weight table extensions is that they have less mass, and the overall mass of the saw is what soaks up the vibration crated by the motor and other moving parts. The added mass of heavy cast iron extension wings decreases vibration, which in turn helps the saw stay in calibration, and also helps it stay planted firmly on the shop floor. On less expensive saws, extensions made of stamped metal, or ones that aren't precision ground, can also compromise the overall flatness of the table surface.
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