Portable electronic devices with low-voltage power supply are often designed for batteries and accumulators. Among such devices, the most popular are electromechanical and digital clocks, radio receivers, flashlights, and… wireless doorbells operating on a radio channel at a frequency of 303 MHz (there are variants at 933.25 MHz). Digital cameras with a connector for external Read more…
When building amateur aerosleds, gliders and hovercraft, the greatest difficulty is usually choosing the right engine. Standard production engines often fail to satisfy home‑builders in many respects, particularly in terms of specific power. The most radical way to solve this problem is to build homemade engines using parts from serial motorcycle engines. Readers of “M‑K” Read more…
If a country house or rural home has a high roof — it’s a sin not to take advantage of such an advantage and not to arrange an attic there: it can serve as an additional bedroom, study, and even a children’s room. The under-roof space itself can be equipped both during construction and in Read more…
Drop-leaf tables have been known for a long time and they are consistently in demand because they take up little space. But buying a table of the right size in a store is not always possible, so you often have to rely on your own hands and ingenuity. The proposed table is made of ash. Read more…
No matter how much humorists joke about repurposing items that have served their purpose, a DIY enthusiast’s soul won’t allow them to throw away something that could still be useful around the house. I’d like to share such an experience of using an empty aerosol canister. Indeed, it’s a pity and not rational to throw Read more…
Ordinary hand rakes for hay collection are an ancient tool familiar to every rural resident. As a rule, all parts of this tool are made of wood to make it lighter—after all, you have to hold it almost always in the air during work. The width of hand rake capture is small, and accordingly, productivity Read more…
Every gardener knows how difficult it is to bring water for watering beds or trees during dry periods. Many use large tanks or bidons with a capacity of 35—40 liters, mounting them on carts. But lifting and removing such a bidon is far beyond everyone’s strength. The design of a cart I made significantly facilitates Read more…
A concrete mixer is not needed by everyone. But it will certainly interest those who are planning to build something on their homestead or are already building. The design of the proposed concrete mixer is simple and accessible for replication. It uses fairly common components and parts. However, it can be assembled from other available Read more…
A dustpan for cleaning up trash—it would seem, what could be simpler. But no, even this elementary product has its problems. Stores sell plastic dustpans (one-piece stamped) and ones with a metal scoop and wooden handle. Neither type is particularly reliable: they break at the bridge where the handle joins the vertical back wall of Read more…
This machine, operating from a single-phase AC network at 220 V, was manufactured in a technical creativity club at a lyceum. It turned out to be compact and convenient, meeting safety requirements. In addition to drilling holes and countersinking, the machine can also perform simple grinding and milling work using various attachments. The machine has Read more…
