Drilling steel mechanical hand drill even in the upright position without special tools is not easy: need and pressure to create, and perpendicular to endure. What if you set one of the axes of a two speed drill heavy flywheel? Here, the gyroscopic effect will get, and the increased mass with the increase in pressure on the drill. To fix it everyone will be able on its own.
Recommend to read
CREATIVE ECCENTRICITIES
In the last issue we talked about some experiments with the construction of submarines made by the British Admiralty during the First world war. It should be noted, is not the most...
Wood–air board
It’s a pity to throw away plywood offcuts, thin boards, and chipboard, even if you have nowhere to use them. However, I have a suggestion: make a kind of wood-air panel from the...
