CALCULATION OF SCREWS

CALCULATION OF SCREWSTo build templates of the screw (side view) for a given shape of the blade (top view) and the step there are two main methods of calculation: analytical and graphical. Usually based on the following characteristics: diameter, the relative width of the blade and step. Since the amount of slip is difficult to consider in advance, based on the geometric pitch.

CLAMPS FOR SKI…

In the summer, and in winter, skiing in storage is usually associated top and bottom, inserting between any boss spacer for retaining desirable deflection. I suggest to use instead of dressings small strubtsinku. They are installed simply and quickly and hold tight.   V. GOLOVASHIN, Rybnoe, Ryazan region.

LIKE GLUE

We practically continually faced with a variety of fine bubbles, whether drugs, herbs, solvents, perfumes, mascara or nail Polish. And they have one common drawback: volatility. One careless movement — lo and behold, the fold is overturned. However, the bubble will never fall,- if to use here such device. Take a circle from a rubber, Read more…