What are Key Features of a Table Saw?
Weight
The weight of a machine is an important consideration. The heavier it is, the more stable the machine becomes in use, and you will keep vibration to a minimum. It also provides a good indication of the quality of the internal components used during the manufacture. Unless a portable machine is required for site use, a cast iron table saw is far better for supporting large sheets or heavy, solid timbers.
Blade Rise, Fall and Tilt
Using a table saw safely, accurately and to its full capacity means that it is necessary to adjust the height of the blade and its angle. Most machines feature separate handles and mechanisms with acme threads for precise, easy height adjustment and accurate blade tilt.
Internal Construction and Trunnions
The trunnions on a table saw are crucial as this mechanism supports the motor and saw unit. It should be robustly constructed to provide the strength and rigidity to enable it to carry the considerable weight of the motor and both the saw blade adjustment mechanisms.
Cast iron is the material of choice as it meets all the requirements whilst adding extra weight to the saw. The trunnions are machined for accurate and smooth operation when tilting the saw blade. They are bolted to the frame to isolate the table from any vibration further and provide added support.
Rip Fence and Rails
Accurate ripping or straight cutting requires a dependable and precise rip fence. It should be sturdy enough to support the wood and provide adjustment to ensure accuracy concerning the blade and table. You should be able to adjust the fence so that it ends just past the center position of the blade. This will avoid the timber binding against the fence, the result of which may be ‘kickback.’
Mitre Fence and Slots
Table saws are provided with twin slots, one on each side of the blade, which means that you can use the miter fence in either. All table saws are provided with miter fences, and you can upgrade these if you deem them necessary. You will improve the accuracy of the cut if the sliding table accessory is used with the saw. This is due to the movement tolerance of the miter fence in the slot being removed.
Sliding Tables
This is either a built-in beam, which is part of the table itself and runs close to the edge of the blade or an optional sliding table accessory. Both of which will enable more accurate miter cuts in addition to giving more support when sawing sheet materials.
Aesthetics
This is a heavy-duty table saw and has a wide-spanning table which is great for performance sake. This is a precision ground and polished cast iron table. It has iron trunnions as well as a square tubing frame. This table is dimensionally stable. One look at it, and you get the sense that it is a sturdy table that will do the job.
