To make myself a mini-tractor (MT) is a dream of many. But they sometimes stop because of the difficulties in acquiring scarce nowadays powertrains, gearboxes with the right gear ratio, differential gear and other parts. Other (basic this beginners homebrew) deterred by the complexity of intricate drawings and manufacturing technology design. A longtime subscriber of our magazine, the author of a number of original designs of small tools V. Boldyshev offers not to despair and peculiar to each natural nous braver to do things. How! Technology, which sometimes intuitively come to many of the homebrew, collecting in a single structure existing units and details “at the place of installation”, doing virtually no daunting drawings. A “deficit” around, taking advantage of opportunities Vtorchermet… or lowly of the landfill, which sometimes careless business executives charged fuses good.
Fast and simple — to manufacture heat sinks for transistors and microcircuits made of copper or aluminum foil with a thickness of 0.1—0.3 mm. Plates are cut with scissors, carefully collected in a package with a thickness of 3 mm, clamped between two fairly tough boards and drill holes. Prior to Assembly of the plate trimmed in the area of thermal contact and smooth out the micron sandpaper to ensure their tight fit. And after the plates are assembled, their ends are bred throughout the free zone.
As a stand-alone power source flash FIL-46 I use a voltage Converter PN-70, manufactured by Kharkiv enterprises “ECHO”. In the process of operation of this device revealed its drawback: after charging the storage capacitor and ignition indicator lights, signaling willingness to work consumed by the inverter current decreases from 1.5 A to About 1 A, that is, the batteries are not disabled and continue to discharge. This leads to rapid failure. To stop the discharge of the batteries is possible by disabling the flash from the unit manually by taking out the plug from the socket or set forth in the chain of socket switch. However, both methods are inconvenient due to the fact that distract from the shooting.
In the December issue of “M-K” for 1990 were published material about the switch-gubbare. There is proposed a technical solution I liked, but… think about it, has developed its own version. In order to turn on the light of the two points, sometimes enough to modify the normal switch. It is necessary to disassemble and install a third contact plate. This is done quite simply.
Easy tricycle Lama, apparently, ‘ will be the perfect means of transport for many — including for people who have lost mobility, deprived of the ability to walk normally. It is stable, develops a moderate speed — up to 30 km/h, and its one door body, made with simplified technology, well protects the driver from the vagaries of the weather. But most importantly — mokik with the engine up to 50 cm 3 and such a low speed in accordance with the rules of the road vehicle is not, and therefore can be made without a license and without registration in GAI.,
Not so long ago they were — the kitchen shelves until they were driven out by the closed cabinets. The latter, no doubt, has its advantages; but its those same: it was all in the mind; to take something — don’t need every time to open-close the door; but fancy curtains, which sometimes zateryalis shelves gave even a modest kitchen feel like home. And now retro-the shelves start to return to the kitchen. This is understandable: wall lockers (especially kitchens) are very expensive. In addition, modern vessels have become so beautiful, what a pity to hide them behind the door — they can serve as a decoration. And to make such shelves will require a minimum of skills and readily available materials — any boards, plank, laths, wedges — that is at hand.