Well trap

DIY device for retrieving objects from a borehole

I have been subscribing to the magazine «Modelist-Konstruktor» since 1980, so I am a long-time reader. I have decided to write to the editorial office for the first time. Since school I have been keen on designing and making various devices, mechanisms, and tools. Sometimes I manage to come up with and build something that Read more…

Hydro kart “Typhoon”

Typhoon Hydrokart: DIY Water Kart Building Guide

We read with great interest in the magazine the descriptions of the hydro-sleds “Pioneer”, “Dolphin” and “Pirate”. We should note that on the waters of the Ob Sea, such vessels can be seen every summer. These are “Typhoons”, the drawings of which were developed in the experimental mechanics laboratory of our KUT. Undoubtedly, the new Read more…

His element is land and water

Triton-2: a planing amphibious vehicle with front-wheel drive

Musician D.T. KUDRYACHKOV is known among amateur constructors as the author of the unique amphibious car «Triton» — the only vehicle of its kind registered simultaneously with two state inspections: automotive (traffic police) and small vessels (GIMS). Our regular readers may recall the publication «Gliding… car» («Modelist-Konstruktor» No. 5, 1996), which contained a fairly complete Read more…

Siberian single-wheel

Homemade Motorized Plow From Moped Engine — DIY Plans

I live in Krasnoyarsk Krai. I have my own house and a small garden plot. Every spring, while digging the vegetable garden, I thought about how to ease — mechanize — this laborious work. So I decided to build a motorized plow. I had an engine — from a motorized bicycle. I made the frame Read more…

TO PREVENT CARS FROM RUSTING

TO PREVENT CARS FROM RUSTING

Rust is enemy number one of almost any metal. The “red plague” that with enviable persistence and constancy turns hundreds of thousands of tons of sparkling high-grade, high-strength, alloyed steel into heaps of brown powder. A disease for which there are no barriers… But there are remedies for it: galvanic coatings, varnishes and paints, bitumens Read more…

With a sidecar and a trailer

Homemade trailer for motorcycle with sidecar: track-for-track

I read in the magazine «Modelist-Konstruktor» No. 12, 1992, A. Tatarnikov’s article «Obedient trailer». It suggested a solution to what at first glance seems a rather ordinary, but on closer look almost unsolvable problem: how to fit a motorcycle with a sidecar with a trailer that would follow it track-for-track? The idea of building a Read more…

TRANSFORMERLESS UNINTERRUPTIBLE POWER SUPPLIES (UPS)

Wall clock powered by the aforementioned power source

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…

Double-IZh

Fig. 1. Duplicate IZh engine by A. Antipin.

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…