Currently in stores you can easily buy any necessary household products. At the same time, attention and creative efforts of Amateur designers more going on technically complex objects: tractors, ATVs, cars and even airplanes. Changing the homebrew approach to the implementation of the projects; they are not afraid of the need for self-production of complex and accurate parts, which moreover may be subject to strict requirements in terms of strength. One such typical elements present in almost all energy-intensive structures, are cylindrical helical extension springs or compression. In this regard, many of our readers will be interested and, hopefully, it is useful to get acquainted with the methodology developed by the Ukrainian engineer Vladimir Vinichenko, which will help the responsible production of springs with the required quality and accuracy.
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Well-made screw — the key to a successful flight “butterflies”. Pick up the wood, without the ROE and knots. Billet screw vystrugat in the form of a rectangular bar size 160х8х10 mm. In the center of the puncture hole for the axis. Then make a paper template of one of the propeller blades. Aligning the centers of the template and of the bar, move the contours of the blade first on one half of the bar, and then another. Billet astrogate a knife strictly on the contour, do the same with a lateral projection. Holding the billet in his left hand, on the opposite half cut the right corners. When finishing, try to front (top) part of the blade was slightly convex and the lower flat or even slightly concave.
Soldering metal tin solder — one of the most common but, unfortunately, the connection is not too strong. A more reliable seal provide so-called “hard” solders — silver-copper or copper-zinc. Most often, when brazing use a gasoline blowtorch. However, they should be treated skillfully: the lamp is unsafe in the fire relation, smokes when running, the flame is poorly adjusted.
Almost twenty years of experience in the design obsut Chernihiv circle of agricultural modeling. Over the years the students under the guidance of their mentors have designed and built many useful machines, mechanisms and devices, many of which have economic value and bring real benefits to the collective field. One of such devices — a device for the thermal treatment tick bees.
Any owner confirms that the washing out, dried on the street, gets the smell of freshness, not an example of this, when moisture from the Laundry evaporated in a special apparatus (devices) or simply indoors. Many times this smell is enhanced by weathering of underwear in the cold, and especially when freezing.
Not so long ago a Swedish doctor-hygienist B. Akerblom wrote the book on… of furniture, more precisely, about the simplest of its species on the chair. “Five thousand years of sitting incorrectly!” he argues, based on numerous anthropological and anatomical data. His insights not only interesting and practical recommendations for professionals. They indicate that the furniture is still little developed, and therefore, extremely exciting field of technical creativity.
So, ended walking through the shops in search of the desired colors of the future outfit for the walls of your home; purchased after consultation with the sellers the required number of rolls and packs of glue you would have to start wallpapering. However, where better to begin this work?
Complementary small-sized furniture because it can be used for different purposes. Have these qualities offer the German magazine “Praktik” (see pictures) segmental modules. The upper part is mounted on two perpendicular to each other by wooden panels.
Rust metal, faded over time, brickwork, lost look painted surface… In all these cases is taken sandpaper or a metal brush — and stop! In the direction — is the last day! The lion’s share of tedious work in the clean-up should be given to the mechanism of the electro.
This machine will be your helper, if you’re into modeling or just like tinkering. Even at home, you often need to cut the rail and otfugovat it or sharpen tool — all these operations “on the back” made by me machine. It’s small — the dimensions 80X180X360 mm, so it is convenient to store in the apartment.