A simple clamp can be made from a long bolt, washers and nuts-lamb. The jaw faces are made of solid wood.
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ONE INSTEAD OF TWO
To secure the various parts often used connection, using the so-called lock nuts. However, you can do without it. For this it is necessary to saw through the nut, as shown, and...
WITH THE NEW REQUIREMENTS
Since 1987, entered into force new "Rules for flying sports in the USSR". Changed and technical requirements for model rockets. So, in the category B4 (model raketoplana) one of them...
