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
THE CAR ON THE LINE
Ford T - the first mass car. To do one car per month at the beginning of the XX century -a difficult task for teams of skilled mechanics and engineers, but doable. It is realistic to...
NOT FLOUR, AND THE CURRENT
Live in the taiga wilderness, starved (fuel for the diesel generator running out) energy rations. And next carelessly rushing river. Natural, so to speak, a source of energy, what...
