Draw with your compass a circle is not a problem, at least with a pencil, though ink. For this purpose, as is known, there is his replacement leg. If instead the stylus or raspadura to insert it into the reusable part of the blades design knife — get a handy torch for arc or circular cuts on paper, cardboard or soft plastic.
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COAXIAL ROTOR CHAMPION
General interest participants and experts of the past championship of Russia for sport flying showed to the model of the winner in the class of rotochutes (S9A) Mr. Voronenko. I must...
WEDGE — GUARANTEED
The easiest and most common method of fastening a wooden handle in the head any hand tool — a wedge. Over time, however, and such fastening is weakened, shaken. To avoid this, I propose...
