To measure the thickness or diameter of small fasteners do not have to have a caliper: rescue improvised version of conventional clothespins. It is sufficient to attach the metal plate coated with graduations as shown in the figure. I. KORENEV, Korolev, Moscow region
Recommend to read
THE ENVELOPE OF METAL
Its really easy to bend the tin, and even better — from a thin sheet of colored metal, but of course not for sending by post. Make at the top, not a bent valve, the opening and...
WITH SPLIT BODY
We present rocketmodeler development contains many non-traditional solutions. I hope that they will interest the creators of "microcosmic" technology of today and will be useful to those...
