Let’s take a look at the principles of how a machine like an electric jigsaw works.
Saw blade
The working tool of an electric jigsaw is the saw blade. It is fixed in the device with a special clamping mechanism, which may have a different design. While sawing the material, the saw blade performs translational motion.
Supporting roller
For this purpose, as such a guide in modern jigsaws is mainly used supporting roller, which takes on most of the load during the work. The teeth of the saw and the jigsaw mechanism are designed so that sawing takes place when the saw blade moves upwards. Unlike the first jigsaws, the cut is clean and accurate even on the most delicate surfaces.
Saw blade pendulum stroke
This feature of the jigsaw allows you to quickly make straight cuts. The meaning of this feature is that the movement of the cutting element occurs not only up and down, but also in the direction of the cut back and forth. Due to this curvilinear oscillation, the material is undercut as if ahead of the cut.
It is recommended to use the pendulum stroke only on straight cuts and when there is no need for high quality.The pendulum stroke has its own oscillation adjustment. Thanks to this it is possible to choose the optimum amplitude for different materials. According to the manufacturers, the use of the pendulum stroke prolongs the life of the cutting blades.
Electronic speed adjustment
Motor balancing and low vibration – all this has made modern jigsaws a very popular tool. Although recently there was an opinion that it was impossible to make a quality cut with such a tool (the blade goes sideways along the material fibers, the blade bends, etc.), today these disadvantages have been eliminated.
Proper operation of modern household jigsaws allows you to perform most basic cutting operations. If you need more, get a professional model.
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