It is known that over time a regular door and other hinges start to creak, and lubricate them from the inside is not so simple: sometimes you have to remove them, which is not always possible.
However, once you drill into the top level loop through hole to the axis, and lubrication is simplified, and the result is excellent: the loop will stop squeaking for a long time.
Recommend to read
DRYING WATER…
In this issue we introduce young innovators, participants of operation "the Introduction" with an unusual method of drying developed in Nikolaev. At our request about it, say the authors...
ON THE SAME SNAKE
All probably know what a kicksled. Very comfortable design, but it was too heavy and bulky. Once the IIA came up with the idea: is it possible to lighten them and make them leaner? It...