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In DIY projects, it is sometimes necessary to organize a drive for some device, and for this you need engines, gearboxes, and so on. This video shows a drum drive using a Kamaz windshield wiper motor, and it comes with a worm gearbox. The engine was bought at the nearest auto parts store and cost almost 2 thousand. Also, a short comparison of this engine with a similar one, but ordered on Ali. The engine was bought here: https://gotbest.by/redirect/cpa/o/q7t... today it costs 3 thousand. As a result, we got a Frankenstein system drive - parts from a grinder, imported and domestic motorcycles and even a bicycle were used. It remains to assemble an adjustable power supply (in the video, an old charger for a 12-volt battery is used to power the drive). In general, I was very pleased with the results of my work.