Of tubes of different diameter, tightly placed one on another, you can build a jig for drilling end holes in cylindrical rods of various cross sections. For the outer bushings are better to use a steel tube with a thickness of 0.5 mm, and the inner insert can be bent any sheet metal. V. MARTINTON, Novocheboksarsk
Recommend to read
VOLTAGE CONVERTER FOR MS
Designing electronic devices on integrated circuits, radio Amateurs often use to display the information indicators IN gas-1 — IN-16. They usually feed from the mains AC voltage of 220 V...
THE EJECTOR ON A COPY
Using copy booster of the spaceship "Soyuz" in the class of models K-2 has, along with the advantages and disadvantages. In the manufacture of models, it is difficult to meet the launch...
