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
THE FARM WILL FIT; SHOWCASE-BOOKCASE
The list of Moto - and electrophotonics that use rural residents, is growing steadily. Along with tractors, tillers, mills, kartoffelschalen, mower they have different fixtures, which...
SAILING WINDMILL…
They say everything old is new again. And energy here, it seems, is no exception. Burned on Chernobyl, faced in some places with the threat of an energy crisis, mankind increasingly...
