This week on the blog, we featured forums user HarpDude’s impressive “String Car Racer” project.
Back in the 1980s, my college-aged brother designed a simple motor+battery car that raced along a string between the birch tree and the street-side power pole. For years now, we’ve been improving on the design, keeping it really simple: 1 battery-driven motor, flashing lights, and repurposed materials whenever possible. The primary goal was speed and stability. The car ran at full speed until it found the end of the string — then you either had to be there to catch it or be prepared to repair it before the next time trial. (read more)
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