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
HOW TO MAKE BLINDS
Modelers or hams sometimes need to make the blinds. For example, for the bonnets of models-copies of planes or metal housings radiokonstruktor. Offer a simple way perform in the home...
AEROBATICS “FLYING WING”
By the mid 30-ies of the aircraft type "flying wing" was quite true to their name — they were flying. In our country, in Germany, England, Switzerland, designers and innovators to pilots...
