For many woodworkers, amateur, trade or professional, the table saw in one guise or another is often a key item in the workshop and is likely to be the starting point for many projects. With its ability to perform a multitude of different tasks such as ripping, cross cutting and sheet material preparation, the correct table saw becomes an indispensable part of the workshop. It is probably the first machine that many would contemplate purchasing but the most important consideration though, is to understand exactly what the ‘correct’ table saw should be for any given application.
Moreover, it’s essential that it has the appropriate strength, longevity and capacity but above all it has to be accurate.
Table saws vary in size, function and price, so it’s of great benefit to consider the probable applications when drawing up a shortlist, as all likely purchasers will have a completely different set of requirements.
In a hobbyist or amateur workshop, and in some trade workshops, a table saw might be called upon to perform a whole host of different tasks where a ‘general purpose’ machine is appropriate; other more specialist establishments may require a large dedicated panel or rip saw.
For example, if fine furniture or restoration work is produced in the workshop, the machine may be called upon to cut solid baulks of heavy timber. In this instance, a good depth of cut, solid fence and powerful motor are important considerations.
Should panel or sheet board be the primary material cut on the saw, the maximum ripping distance from blade to fence and a good quality sliding carriage with support either side will be paramount. When veneered sheets are being cut, a scoring blade to minimise chipping on the underside is highly desirable.
Key Features of a Table Saw
The weight of a machine is an important consideration, as the heavier it is, the more stable it becomes in use and it will be affected by vibration to a much lesser extent. It also provides a good indication of the quality of the internal components used during the manufacture and unless a portable machine is required for site use, a cast iron table saw is much better for supporting large sheets or heavy, solid timbers.
Whichever machine is eventually chosen, the table is the main support and datum for the timber being sawn. It should be smooth, flat and strong. With the exception of the very lightest, portable Hobby saw with an extruded aluminium table, all the other Axminster saws have finely ground, cast iron tables that provide an accurate surface for your work, as well as providing additional mass to damp out vibrations.
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 as well as its angle. The portable Hobby series table saw is the only machine where the height and tilt controls are grouped together; all the other machines feature separate handles and mechanisms with acme threads for precise, easy height adjustment and accurate tilt of the blade.
Internal Construction and Trunnions
The trunnions on a table saw are crucial as it is this mechanism that supports the motor and saw unit. It should be robustly constructed in order to provide the strength and rigidity to enable it to carry the considerable weight of the motor as well as both the saw blade adjustment mechanisms. Cast iron is the material of choice as not only does it meet all the requirements but also it’s very heavy and adds to the overall mass of the saw. The trunnions are machined for accurate and smooth operation when tilting the saw blade. They are bolted to the frame to further isolate the table from any vibration and provide support, as found in our industrial panel saws.
Rip Fence and Rails
Accurate ripping or straight cutting requires a dependable and precise rip fence. It should be sturdy enough to provide support to the wood as well as providing adjustment to ensure accuracy in relation to the blade and table. It should be possible to adjust the fence so that it ends just past the centre position of the blade, avoiding the timber binding against the fence, the result of which may be ‘kickback’. Axminster Hobby and Trade Series fences and rails are made from extruded aluminium whilst the heavier industrial saws use a solid steel rail and cast iron rail mountings.
Mitre Fence and Slots
Table saws are provided with twin slots, one each side of the blade which means that the mitre fence can be used in either. The accuracy of the cut may be further improved if the sliding table accessory is used with the saw as the movement tolerance of the mitre fence in the slot is removed.
All our table saws feature a movable table on the left hand side of the blade. 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 mitre cuts in addition to giving more support when sawing sheet materials.
The sliding tables are easy to fit and adjustable to run parallel to the blade. When not required, they can be easily removed for storage, creating more space in the workshop. The larger sliding tables on dedicated Trade and Industrial Series panel saws are an integral part of the machine and consist of a telescopic support arm with a cross-cut table and movable beam.
Health and Safety
A table saw of any description, used carelessly or incorrectly, is one of the most dangerous machines in the workshop, with the potential to cause life-threatening injuries. Basic health and safety precautions should always be observed when using one.
In order to avoid ‘kickback’ i.e. the timber being caught by the blade and thrown back towards the operator, always stand to the left hand side, never in the ‘field of fire’. Whenever appropriate, always use push sticks so that hands never come closer than 450mm (current H&S requirement) to the blade.
All Axminster table saws are fitted with a mandatory crown guard and riving knife that should never be removed when the saw is in use. In a professional workshop in the UK it has been illegal for decades to remove these two items from a table or panel saw.
When cutting, the high-speed blade produces a huge amount of dust that is a major health concern and should be removed at source by an efficient, dedicated dust extractor. Alternatively, the table saw should always be plumbed into a piped extraction system where the sawdust from all machines in the workshop is collected at a single point. Table saws are generally fitted with 100mm extraction ports as well as a smaller ‘take-off’ port on the crown guard, that aids the removal of saw dust directly over the blade.