The quiet of a sunny spring morning was broken by the throb of an engine. A villager digging his garden with a spade straightened up and looked over the fence at the neighbor’s plot: what was that noise at the Ilyichyovs’ place? He saw a small two-wheeled machine emerge from behind the outbuilding into the Read more…
A car’s handling and tire wear, as is well known, depend primarily on the condition of the front suspension — the caster angles of the steering axes, as well as the camber and toe angles of the wheels. As a rule, all of these parameters are adjusted on special stands at service stations; however, even Read more…
In dacha conditions, especially if it is a new build and everyday life is not yet settled, the proposed design will prove as necessary as it is versatile. Quick and simple to make, it will faithfully serve not only during the first stages of developing a country plot and building a house, but also later Read more…
It would seem that fishing is not water polo: fish love quiet and calm. However, balls will also serve well those who prefer to spend their day off somewhere on a pond with a fishing rod. Especially where the banks are overgrown with reeds and algae: just try casting your tackle. Even using a bottom Read more…
In “M-K” No. 8, 1984, we wrote about an arched cold frame built by schoolchildren. Its main load-bearing elements — the half-arches — were made from gymnastic hoops. That circumstance strictly determined the size of the cold frame. Yet it is very tempting to build, on the same principle, a more spacious and easier-to-maintain structure Read more…
Security systems are a rapidly developing area of modern electronics. A huge number of various circuits and designs have been published that anyone who has held a soldering iron in their hands at least a couple of times can build. For example, “electronic guards” can warn of an intruder entering a room or signal the Read more…
Over the past decade, motor all-terrain vehicles on light wheels with pneumatic inner tubes have become especially popular among amateur designers. The remarkable cross-country ability of such machines prompted sailing sports enthusiasts to use the unique properties of the pneumatic wheel when creating all-season sail craft. This publication introduces readers to such a vehicle. So, Read more…
Explosions and fires caused by gas leaks are, unfortunately, not uncommon. While giving due credit to the work of administrative bodies and emergency services, radio amateur designers can also do something themselves to minimize this danger. However, in the field of gas monitoring there are almost no simple, reproducible devices, or they are unreasonably expensive. Read more…
Of the family of micro-tractors developed by students at the Kharkiv Institute of Mechanization and Electrification of Agriculture, the simplest and most accessible for DIY construction is the walk-behind tractor “Malysh” (KHIMESKh-2): it makes maximum use of units and parts from industrially produced machinery. This is a compact two-wheeled machine controlled by an operator walking Read more…
In “M-K” No. 4 for 1982, an article was published about the young technicians club at housing management office No. 8 in the city of Vitebsk, and about the amusing and useful machines created by its members. Among the most original devices mentioned was the mechanical sweeper MPM-1. It was conceived as a means of Read more…
