How DIY Projects are Made Easier Using Power Tools
Many handyman projects are made easier if a power saw is used. It is most important to buy the best equipment you can afford. There is a wide range of power attachments for such varied tasks as mitreing, planing and dowel-jointing. The best finish will only be achieved if the basic tool and the specialized attachment is used correctly.
Power saws, both as attachments to power drills and as integrated units, are among the most widely used of power tools. Saws are made in a variety of motor powers, and with various sizes of blade. The blade is circular and revolves on a spindle.
Variations on power saws are rebating attachments, which fit on to power drills and have a similar but much smaller blade and the jig saw, which has a thin serated blade, which moves up and down to cut shapes.
The power saw is a versatile tool and can be used in conjunction with saw tables and benches to provide a permanent cutting jig, enabling a wide range of power woodworking jobs to be carried out.
Many of the jobs tackled with hand tools-such as cutting, rebating, mitreing, dowel-combed jointing – can be carried out with a power saw.
Obviously, if you intend to make a lot of use of a power saw, either use a larger drill with attachments, since small drills may not be up to the work, or buy an integrated saw. Again, choose a better one if you are going to use it very much..
Take care when using a saw that you do not strain the motor, this will be detectable by ‘hunting’ sounds and slowing down. Some makes of attachment have a clutch device which allows the blade to slip at a certain level of strain, to relieve motor stress.
Circular saws can be set for correct depths – just slightly more than the depth of timber – and should always work at a fast speed. Saws are fitted with afence to guide you accurately and can be operated at various angles for bevelling-there is a gauge on the unit to allow angles to be correctly set.
Before using the saw, remove any surfaceand as these will at once blunt and damage the teeth of the saw blade.
Used properly, a circular saw is perfectly safe. However, never switch it on with the hands near the blade; never make adjustments near the blade with the power plugged in; and always make sure that the retractable blade guard is in working order.
This is spring loaded and pushes back as the saw advances. Make it an automatic practice to unplug when making any adjustments at all.
The two basic attachments with the saw blade are a saw stand, on which the drill with a saw attachment is mounted, and a saw table, under which the saw drill attachment fits.
The attachment is only really suitable for light use; other than for occasional such work, it is far better to buy an integrated saw, capable of heavy duty.
When operating a power saw, start the motor before the blade touches the wood. The saw must always run at a high speed. Saws have a rip fence which keeps the blade running accurately to the line; this is set to the depth measurement of the cut. If the blade wanders from the cutting line, never attempt an adjustment by twisting the saw, as this may jam the blade. Go back a short distance and resume cutting. If the blade binds persistently, it needs resharpening.
10. November 2011 by admin
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