A Sauna for Bees

Thermal unit for treating bees against mites

For almost twenty years, a design club for agricultural modeling has been operating at the Chernihiv regional Station of Young Technicians. Over the years, the students, under the guidance of their mentors, have developed and built many useful machines, mechanisms, and devices, many of which are of practical economic importance and bring real benefit to Read more…

Electric Cycle

DIY electric motorcycle: design, wiring, and road tests

Ecology and environmental protection are becoming increasingly relevant topics worldwide. Requirements for harmful emissions from vehicles are constantly being tightened. That is why major manufacturers are developing and starting to produce electric and hybrid cars. These trends are also reaching our country. And while the evolutionary direction of automotive development has been defined and is Read more…

Pedals for Champions

Bike drive with automatically extending pedal levers

The bicycle is probably the most widespread means of transport. And there is no doubt that it is also the most economical: two buttered sandwiches are enough to pedal for two hours. But can the efficiency of the human “engine” be increased? Reducing “fuel” consumption will not help. Friction and the weight of the machine Read more…

Around the Nail

18 tips: how to drive nails the right way

It would seem that driving a nail is about as simple as it gets. Still, even this seemingly straightforward operation requires a calculated approach and some experience. 1. Long nails are best driven with a 400—500 g hammer, and small ones with a hammer weighing up to 250 g. 2. To find nails driven deep Read more…

A ‘Hair Dryer’ for Welding

DIY hot-air gun for plastic welding at home

I offer home craftsmen (and not only them) a tool for welding plastics. However, it can also be used for a wide range of technical creativity tasks — for example, to blow solder off dismantled electronic boards. After all, the temperature of the air coming out of the nozzle tube will reach 300°C, and it Read more…

A Test for the House

Plot layout rules and dwelling house requirements

On his own land, the owner erected a two-storey shell of a “Canadian” house on a strip foundation. The adjacent plot had long been for sale. At last it found a new owner, who invited a surveyor for an accurate layout of the plot. During that procedure it turned out that the neighbour had built Read more…

Country House, Comfortable

DIY garden swing chair and round side table

We continue to introduce our readers — owners of garden and country plots — to nontraditional designs of cottage furniture published in the Polish magazine “Zrób sam”. SWING CHAIR There is probably no one who does not like a swing. However, while a rope and a piece of board are quite enough for children’s swings, Read more…

Sleds — ‘All-Terrain Vehicles’

DIY kids sled with a single wide runner

If you recall that cross-country racing skis are designed mainly for travel on a prepared track, while wide hunting skis handle any snow, it becomes clear how the proposed homemade sled design differs substantially from store-bought ones: above all, it does not require packed snow slopes. Even the fairly popular three-ski snow scooters “Chuck and Read more…