It’s hard to keep lightning screw or the screw when tightening, especially in the beginning. Take an ordinary plug wrap the teeth with a strip of plastic film from household paneth and pierce it with a screw that tighten, additional support will be required.
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Sometimes you need to get easily collapsible gusset. Use the hinge type piano, but remove the axle. There are also more simple variant — with a normal hook. The figure shows three...
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The journal "modelist-Konstruktor" I love since childhood. In Kazakhstan we have now it is not for sale, but I regularly read it in the library. Responding to the call of the editors to...
