When working with imitation leather or thin skin, which are often used for the models or devices, there is a need in the holes of small diameters. In these cases, rescue of a homemade tubular proboinitsa. This can be obtained for example from a metal rod of a ballpoint pen after extraction of the writing unit and sharpening the edge of the tube.
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THE PROPELLER ON THE MACHINE
Manufacturer of air screw requires special precision and accuracy. The proposed device will greatly facilitate your work: processing of the pressure surface of the screw with sufficient...
LIGHTER, DARKER
Smoothly change the brightness of room lighting or hall comfortable with the thyristor voltage regulator (see Fig.). The scheme allows you to adjust the load voltage ranging from 220 V...
