The need to sample a semicircular groove often occurs during the manufacture of home-made furniture or the construction of a garden shed. How to do it without the special tool! The figure shows the method of manufacturing such a groove with a conventional circular saw — a workpiece moving along the inclined installed a bar-rail. The tilt angle depends on the width of the groove and determined by the elementary measuring instrument of the type of a parallelogram and the line.
Recommend to read
GRANDMA’S MOUSETRAP
In fact, this device rodents literally no catches, but oceti effectively brings forth the Secret is not in a design that is extremely simple and in folk wisdom, take one feature in the...
MISSILE “STORM”
In accordance with the existing plan for the construction of the Soviet Navy in the late 1950-ies provided for the construction of a series of special vehicles, air defense PR 1126 ships...
