Before there was the drawing tool for finding center of round parts. My version of such a device — shaped ruler, cut from steel plate with a thickness of 2-3 mm. hole is punched on the line, strictly perpendicular to its working edge, is inserted and fixed by soldering to steel pins, machined rod d 10 mm.
Apply tsentroiskatel on the end of round details that both pins touched the cylindrical surface — the range will indicate the direction to the center. The point of intersection of two radial notches will give the position of the center of the circle.
The tool is convenient to use as a square and the layout of rectangular parts.
V. KHRUSTALEV
Recommend to read
AIRBORNE SELF-PROPELLED GUN ASU-57
In 1947 in accordance with the September decision of the government in the aviation experimental design Bureau (OKB-115), headed by A. S. Yakovlev, began development of a heavy landing...
BUILDING A CAR
(Continued. Beginning at No. 10, 1975) 5. THE MOST CRITICAL NODES Traffic safety and ease of control of desired self-made car, probably even more than serial. After all,...
