The end of the 80-ies of the XIX century was for the Russian shipbuilding a turning point. The Navy finally became “steel”; changed the materials, machinery, artillery, ammunition, tactics. Gradually began to change the approach to shipbuilding programs: separate “model” ships have passed into history, because the creation of each of the “unique” require a lot of money, and the fleet strength of such loners has increased slightly.
Of all the impact tools — an axe, a sledgehammer, a pick, and others more in the process suffers hammer: slip a large nail or chisel is not lost on its wooden handle. To protect her from injury, sometimes near the striker even impose a safety metal strip. However, it is easiest to cut from Read more…
Designers snowmobiles operating in rural areas, and most — often used parts of decommissioned tractor Puscuta PD-10 propeller systems for their cars. It is clear and logical: the engine PD-10 is widely distributed in agriculture, it is necessary to recast it we option is not the challenge. Accumulating the experience of operating planes with such engines, the designers achieve a very noticeable increase their performance by improving purging, selection of carburetors, etc. it is safe to say that at present, a single “rural” snowmobile engine, created on the basis of the PD-10 are the most proven and reliable machine. It should be added that in the construction of chassis, control systems, etc. in recent years also created a lot. According to the editorial, timely information about these updates can assist the novice builders.
Do not throw away box from a failed TV he still will serve you as a “case” for the aquarium. Vnutrimyshechnogo space to accommodate not only the aquarium, but also the illuminator, compressor, heaters. Buttons, toggle switches can be placed on the front panel “TV” on it also cut vents. The top cover of the Read more…
If you are laying under flange of large diameter to cut from a camera from the wheels, as is usually done, will not work: it is twisted. Rescue and cords or braids of twine. I in these cases, apply the following solution. Take a fabric tape and wound it on a conical bucket, which is Read more…
Near the base camp in the district of Tsugaru passes along with the tourists, I have built mini-hydroelectric power plant with a capacity of 15 W and voltage 220 V. This is sufficient for night camp lighting energy-saving lamps or LEDs. Day also can charge batteries of cameras and camcorders that can connect a radio or tape recorder.
“Oriole” — so I called built for the son of the electric car. The design idea came to me about two years ago, and much credit for this journal “modelist-Konstruktor”. Several months of estimates, calculations, dozens of layouts, hundreds of paintings and drawings of the body has led in the end to be quite rational, in my opinion, the solution. In the process of development of electric vehicles important issue was the problem of using abundant materials, parts and components, and as it seems, I managed to solve it.
On the shelves of sports stores you can often see elegant double sledge for skiing the mountains, called “Chuk and GEK”. The sleds solidly constructed, brightly colored, very attractive in appearance, but… do not use special demand. We do not undertake to judge how good these sleds, what their shop offers, but after the installation of vasodilates D-5 and they, undoubtedly, will be a very interesting self-propelled machine (Fig. 1). Such a construction was offered by a famous Leningrad artist — N. Abramov. In our opinion, the use of sledge “Chuk and GEK” as a basis for creating various children’s trails in machine — sensible initiative. It should be noted that the possibility of their “motorization” is not limited to the offer, which did N. Abramov: in addition to wheel with spikes, can be applied to the screw or the propeller (in the latter case, it will microaerobic). Finally, why not try it instead of the internal combustion engine to set the motor power cable or contact wire?
For painting walls, fences and other large surfaces are often used paint rollers. However, if you use several different paint colors, it is necessary to acquire a set of rollers or spend a lot of time n of the solvent for washing. If the work items to use removable foam cylinders, one roller will replace Read more…
Has long been a regular reader and subscriber of the journal “modelist-Konstruktor”. I want to share one interesting result of technical creativity. Sometimes people ask for a drawing apparatus, a photo of which is posted in social networks is decided and for this reason also more to say about it.
