In the manufacture of bookcases I made sure that the connection is full to the walls with nails, spikes or corners and base rails with screws is not always provides the strength and rigidity of the structure due to drying of wood, glue, and therefore not very reliable. I think that a more practical way of connecting with full of side walls coupling bolts with nuts, which is shown in the figure. After evenly tightening the screws with a screwdriver the whole structure becomes rigid and rectangular, other compounds to provide very difficult. V. SAFRONOV
Recommend to read
COMBO GENERATOR
To build and repair electronic equipment needs generators low and high frequencies. A simple device, a scheme which offers the British magazine "Radio Electronics Constructor", replace...
“Silver” motor plow
The All-Union Competition “Small Mechanization”, held by the editors of the magazine “Modelist-Constructor”, has gained wide popularity among the creators of small-sized agricultural...
