THE CONDUCTOR-TELESCOPE

THE CONDUCTOR-TELESCOPEOf 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

  • SPINNING WITHOUT INERTIASPINNING WITHOUT INERTIA
    Throwing spinners on the reel of a spinning formed the so-called "beard" thread waste, which brings much trouble to the fishermen. A simple jig made from aluminum plate, steel wire,...
  • MINI HELICOPTER FREE FLIGHTMINI HELICOPTER FREE FLIGHT
    The twin-engine helicopter model. The creation of radio controlled model helicopters is one of the most difficult types of modeling. So complex that at the present time, almost nobody...