Shovels, hoes, axes — any cutting tool before sharpening, it is useful to hold at least an hour in a weak solution of
salt and, without wiping, start sharpening metal will be easier to sharpening.
Recommend to read
AND NAIL — TOOL
Developed a lot of tools for punching large diameter holes in sheets of plywood; many of them are rather complicated or cumbersome. I need only a wooden plank to two nails. Hammer them...
INVENTING… THE WHEEL
At this stage of the work, outline the design of the actuator, which provides translational movement of the model. Let's start with the analysis of the already known mechanisms, which...
