Work Hand Circular Saw Video
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Start with a good drive
For clean cross cutting of solid wood, decorative plywood and other sheet and plate materials, replace the standard 24-tooth disc, which most models are equipped with, with a 50-60-tooth disc. And for most cuts, when the quality requirements are not too high, use a 40-tooth blade. And only for longitudinal sawing of massive wood, re-install a regular disk with 24 teeth.
Get rid of chips in one of three ways.
The teeth of the saw blade rotate forward and upward. The lower side of the workpiece, where the teeth enter the material, almost always remains clean, without chips. On the contrary, the upper side is usually so disfigured by chips that it cannot be used in visible places of the product (compare three photos with different degrees of severity of chips). Therefore, if possible, always lay the sheet or gloss face down for cutting. And if you have to cut on the front side, use one of these techniques to keep the edges of the cut clean.
Видео: Work Hand Circular Saw Video
1. Pre-pruning
Perform a cut in two tricks instead of one. The first shallow passage will cleanly cut the wood fibers located at the surface, and upon final cutting they will not be torn up.
2.Use the splash guard
To squeeze surface wood fibers, especially on veneered veneer materials, and prevent chipping at places where the teeth of the disc come out of the material, attach a hardboard plate to the sole of the circular saw. Gently immersing the rotating disk in the carrier and sawing it through, you will get an anti-splinter pad, the width of which will exactly correspond to the thickness of the saw blade. It will help minimize chips.
Attention! Be extremely careful when working with such a cover, as it prevents the protective cover from closing the disc from below.
3. Make a guide rail
Such a guide rail will help not only to deal with chips, but it also simplifies the work of cutting, and you do not have to resort to calculations. Make it as shown in the figure. Adjust the width to the size of your saw. We made a guide rail with a mine of about one and a half meters for cutting sheets of plywood. The distance between the edge of the base and the stop should be 10-12 mm greater than the distance from the saw blade to the edge of the sole of your saw. Saw the edge of the guide bar, pressing the sole against the stop. Now one edge of such a tire will act as an anti-chip splint, pressing the fibers on top. Before cutting, lay the tire on top of the future part, since chips will occur on the other edge of the cut, where the fibers are not pressed.