LEGO gearbox – seven speed plus reverse

We know LEGO is a very versatile medium to build with but this is beyond what we considered possible. Seven speeds and a reverse gear were built into the gearbox for this LEGO vehicle. It’s not completely an original design, but adds to the five-speed design found in a ten-year-old LEGO set. See it demonstrated in the video after the break. The design uses a sequential gearbox; shifting is accomplished by clicking the stick up or down depending on how you want to shift. If you’ve got enough parts on hand you can build this using the assembly photos that [Sheepo] posted.

Can’t get enough of the gears? Check out this model of a double clutch transmission.

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Double clutch transmission model

[Alan] did an extraordinary job building a computer controlled model gearbox. His project from several years back is based on a dual-clutch Direct Shift Gearbox that was developed for VW and Audi vehicles. His design uses a gear head motor to provide the locomotion to this transmission. Shifting is computer controlled through serial cable, with servo motors providing the physical motion to change gears. Seeing all these moving parts in the clip after the break might make you a bit dizzy.

This is some extreme model building. It reminds us of the guy who built that aluminum aircraft model that was all over the Internets in December.

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