Today we’re building a study model of German engineer Karl Benz’s gearbox, the same mechanism you’d find in the transmission of any modern automobile, complete with drive shaft, layshaft with gear couplings, reverse idler, and a gear shift. It’s the UGEARS Gearbox, the second model we’re testing after the 2-in-1 Arithmetic Kit (check out our first UGEARS review here). The Gearbox is part of the model maker’s STEM Lab series, educational tools and fun models that aren’t just for kids. Anyone who has ever driven a car should know the fundamentals of how a gearbox works, and this model is an excellent start.
