Motion sensor DD-010 disassembled with the control board removed and an additional siren (100 dB sound level) type KPS-4510 connected. Motion sensors (DD) based on Fresnel lenses and pyroelectric detectors can be used not only for their intended purpose – to turn on lights or as an element of a security alarm installed indoors. Cars Read more…
Perhaps this mechanism is the lightest in its family of counterparts: even a schoolchild can lift and carry it if need be. Low weight and utmost simplicity of construction—these are the qualities of the bicycle plow that drew the attention of visitors to the exhibition of young technicians’ work, participants in the All-Union rally of Read more…
For many years Modelist-Konstruktor has been introducing its readers to various furniture designs intended for do-it-yourself construction. Unfortunately, as reader mail shows, not all home craftsmen who want to get started can take on replicating them. This especially applies to residents of large cities. The main reason is a shortage of “building” materials or, at Read more…
The kerosene primus stove «Rekord» had been lying idle in my garden shed for a long time. At first I wanted to throw it away, since kerosene is hard to find even in the countryside nowadays, but then I changed my mind and decided to convert it to a more readily available fuel—gasoline. However, you Read more…
Most city dwellers living in apartment buildings usually dry their laundry on balconies and loggias. Ropes stretched low get in the way of placing flower boxes, a deck chair or other leisure items on the balcony; ropes stretched high cause inconvenience when hanging laundry and do not always ensure the necessary safety. All these drawbacks Read more…
On a summer cottage plot in bad weather you can take shelter indoors. However, even on a sunny day you sometimes want to hide — from the scorching rays. And if there are no large trees on the plot that would provide welcome shade, you don’t have to build a solid permanent gazebo, as is Read more…
Among the large family of “Lebed” (Swan) designs by Vitaly Konstantinovich Savitsky, the “Lebed-7” stands out for its bold layout of components and assemblies, successful centering, good streamlining, and smooth ride. The sled (see figure) is a four-ski design with steerable front skis. The steering is automotive-type, with a worm gear and steering linkage. The Read more…
Cultivating land, planting (or sowing) crops, and caring for them is not only labor-intensive but also physically demanding. Even those who have acquired a dacha or garden plot to have a place to “stretch” at leisure or work the land for pleasure try to somehow lighten and mechanize these tasks. For this purpose, a multifunctional Read more…
Tourist trips, water competitions, fishing! How many unforgettable summer days and winter dreams are associated with them! But for these dreams to come true, first of all, you need to have some kind of vessel. Here’s at least this catamaran with the tempting name “Rest”! You, of course, know that a catamaran is a vessel Read more…
«After the publication in issue 12 of 1971 of the magazine «Modelist-Konstruktor» of the article «Meet the Tulpar» we received many letters from readers asking to send drawings and descriptions of various components of the Tulpar electromotor scooter. Since we cannot send drawings to each reader individually, we ask you to print them in the Read more…
