Проворачиваемость саморезов лечится циакрином (желательно - с активатором), можно добавить в него пластиковой стружки; держатели балки можно подточить для более плотного удержания балки, хотя замена на метал полностью решит проблему.
Замена на метал --и не будет проблем.
часть балки можно покрасить, диаметр увеличится и трение в зависимости от краски.
можно наждачку нулевочку подложить, между балкой и держателем. А вот про болты, сделайте как ранее написано было циакрином.
Всем спасибо. В принципе такие мысли ибыли. Хотелось услышать совет опытных вертолётчиков.
А металл я купил от клона.
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