When the pencil lines of the drawing or drawing close to each other — the usual eraser, it is difficult to remove the erroneous one so as not to damage the adjacent correct. But this operation will be virtually the exact jewelry and if a thin slice of gum to hold in the “beak” of the spring: simple and convenient.
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ELECTRIC DRILL – RIPPER
We have already talked about agricultural machinery that used an electric drill as an engine: mowers - rotary and with a cutting knife (see No. 9 for 1980 and No. 2 for 1981), a plow with...
With a sidecar and a trailer
I read in the magazine «Modelist-Konstruktor» No. 12, 1992, A. Tatarnikov’s article «Obedient trailer». It suggested a solution to what at first glance seems a rather ordinary, but on...
