help here’s a basic clamp, cut and bent from aluminium sheet 1.5 mm thick.
Recommend to read
VASE-IMPROMPTU
Now on sale a lot of different liquids, for example mineral water in large plastic bottles, including a beautiful corrugated walls not only round but also square shapes. If they do ask...
THE KEY TO THE LOCK — UP RESISTOR
In the fourth issue of the journal for the year 1978, published schemes of electric locks with a "secret". They all work well, but they, in my opinion, there is one drawback: the locks...