To spend simply a circle on a plane costs nothing with the help of a compass. But what if this line should cover a cylindrical billet? For a rough layout, you can use string or a rubber ring. The marking will be more accurate if the workpiece perpendicular to lower the fluid: boundary wetting will become the desired line. Another option is to wear to the cylinder tube of suitable diameter or wrap it with a strip of paper, foil.
Recommend to read
“VIRTULA” FOR ALL
Designing a new racing control line aeromodel, we opted not on some extravagant options, but the proven classic design, well established and fully proven to date. The base design was...
Autogyro — glider
FUSELAGE CONSTRUCTION. In recent issues of our magazine, a series of articles by a group of autogyro designers was published about the features of building these rotary-wing machines,...
