[MOC] Remote Control 3 speed car design

[TechnicBrickPower]

An improved version of my RC 3 speed gearbox is implemented into a remote control car. This video shows three main improvements over the previous gearbox design. The first is an improvement is to replace the 90 degree bugatti stepper with a PF servo motor reducing the gearbox complexity. The 2nd improvement is to use a gear rack to replace the liftarm lever mechanism for converting angle to linear displacements. And finally the third improvement to change from using a 2 lego unit axle offset to a 2+1 offset to allow bevel gears to mesh with regular gears for the gear switch mechanism, and thereby eliminating one row of gears. The final gearbox is implemented into a basic lego technic 3 speed remote controlled car that can be driven backward and forwards and steered remotely, as well as remote gear changing between 3 different speeds.