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
TREATMENT OF GLASS WITH WIRE
I want to tell you about a rather unusual method, the obtained shaped glass without a glass cutter. Its role is performed by the wire twisting (that are attached to wooden poles...
SOCKET — LOCK
To keep the inquisitive child" from dangerous "experience" with an electric shock will help a simple device. In textolite disc Ø 38 mm and a thickness of 2 mm drilled Central hole Ø 3 mm...
