A simple clamp can be made from a long bolt, washers and nuts-lamb. The jaw faces are made of solid wood.
Recommend to read
MULTI-STAGE STORM HEIGHT
The idea of composite, or multi-stage rocket put forward by K. Tsiolkovsky in 1929. And on may 19, 1938 near Moscow for the first time in the world was launched two-stage rocket designed...
THE WIND SAIL AND… WHEEL
Historians say that the sail appeared on land about four thousand years ago! Fiction? No - there is documentary evidence. In 1953 the Italian archaeological expedition at the excavations...