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
AMPHIBIAN VICKERS VIKING
In December 1918, the chief designer of the British company "Vickers aircraft" Pearson took over the project of amphibian aircraft. The idea looked interesting: this machine could be...
THE ROLL — BELT
If you take a camera just in case with strap, no bag or special case, the question arises: where to put films? Take advantage of the fact that they are Packed in plastic or metal...
