Isn’t it tempting to make a motor-plow design which has almost no welds! That’s why published in the “M-K” № 3, 1985 article “the wheel of veloplugs” on how to build such a mechanism using a frame end-of-century bike, had a great response.
However, many received letters contained requests to publish more detailed drawings, as well as to inform about the finalization of the engine. Today the author of the article “driving veloplugs” V. Zayets answers to these questions. At the same time we decided to acquaint our readers with one redeeming its simplicity Motovilova similar schemes, made students from the Novgorod region.
Operating experience of veloplugs, which I already told on the pages of the magazine, revealed some shortcomings in my initial design. So, to start the engine D-6 tow for one person was not possible due to the large transmission ratio of chain gear. The engine that did not have a forced cooling system, when working overheated. Due to the fact that the driven sprocket Z = 48 was near the wheel, the gap between them were filled with earth, as a result, the chain was loose. Not very well was installed the wheel, and its width was insufficient. Additional weight on the trunk of veloplugs necessary to improve the adhesion of the drive wheel with the ground, greatly increased the center of gravity and difficult to control. All this has forced me to take up the modernization of its mechanical assistant.