How to grind шипорезную a saw

At a sight at pieces of furniture of ancient work you do not cease to be surprised its good qualities, especially шиповым to type connections «ласточкин a tail». Prosaws are so thin and thorn and groove adjustment is exact that the side межу them is visible only on a wood shade. And after all in those days there were only manual tools. But skilful masters knew, what saw to apply in a concrete case as it should be ground.

Запилы grooves and thorns of furniture connections do special шипорезными by saws which are intended for mixed пиления irrespective of a direction of fibres of wood. The length of a cloth at шипорезной saws usually makes 300-400 mm at its width of 40-50 mm, a sharpening corner — 70-90 °. шипорезные saws have many till 7-12 teeths on each 10 mm of a cloth but as shows experiment, more thin and pure рез it turns out at 4-5 teeths on 10 mm. And, the thickness has spent on drink depends as on a thickness of a cloth, so from the form and the sizes, divorce and sharpening of teeths.

The great value has saw divorce. In most cases size of divorce of 0,2-0,4 mm, but no more than half of thickness of a cloth of a saw on the party. At sharpening of a new saw or a repoint old with a great number of teeths it is necessary to put a cloth on an anvil and all teeths preliminary выров¬нять easy blows of a hammer.

Sharpen teeths a trihedral personal file with the subsequent зачисткой a velvet file (with very small notch) or надфилем. Teeths for the mixed sawing up sharpen at right angle to a lateral surface of a cloth of a saw. For sharpening a cloth clamp in a vice, from both parties enclosing small plates. Movements by a file should be smooth, with uniform pressing. At sharpening supervise position of a file concerning a cloth plane.

Unbend (plant) the ends of teeths with the special tool — distributing, having clamped a saw cloth in a vice or on the special machine tool for sharpening. As a last resort for distributing it is possible to use usual flat-nose pliers.