Brush motor run relatively short. And if not in stock new, home “helper” comes the forced inaction. Meanwhile, a new brush it is easy to make from coal cores extracted from the life-expired elements of “373.” Round carbon rod I attach a file of rectangular cross section (see Fig.). Then a jig saw or saw blade blade cut the billet in half. On one end drill hole Ø 1-1,5 mm for fixing stranded copper wire. Inserting into the hole a wire, spin it, and then sealed. The springs of the brush holders using the same. Homemade brush are less reliable and durable than factory. P. SAVELEV, Togliatti, Kuibyshev region.
Recommend to read
PETAL COPIER
To get a perfectly accurate joint of the flat parts with a curved surface allows simple reception. Take a sheet of thick paper, such as Whatman; one edge cut into a narrow strip and...
TAMING THE TANGLE
There are numerous ways to make current, to the ball of yarn did not run away and not out somewhere. The easiest is to put it in a box, basket, or, as shown in the drawing, just the right size jar.
