Lego Technic Single Motor Tank V2.0

Here I present my second new and improved version of a lego technic tank that is driven by a single lego power functions motor. In this version the gearing mechanism has been optimized and far fewer gears are used to create the four different track direction combinations, namely both forward, both reverse, one forward & one reverse (turn left), and the opposite to turn right. Also the motor has been upgraded to an XL power functions motor instead of the large power functions motor. This gives an extra 0.5 watts of peak power. The lego RC tank can be controlled remotely using a single remote channel and driven forwards, backwards, and steered left and right. These functions are implemented by exploiting the direction of rotation of the motor to either drive the tank or select one the four track functions. This is done by a swinging liftarm with a gear that connects the motor output to one of two separate axles - one for driving the lego tank and one for selecting the track functions. The track functions are built using 2 orange rotary catches to switch a lego gearbox design that allows both tracks to be selected to drive forwards or backwards or to drive in either of the two opposite directions for steering. The track function selector uses a 90 degree stepper and a knobbed wheel to drive the rotary catches. The lego technic tank has an indicator on top to show which function has been selected. #technicbrickpower, #legotechic SUBSCRIBE: https://tinyurl.com/s2frxnf RELATED VIDEOS: Single Motor Tank:    • Lego Technic Single Motor Tank   Lego Technic Multi Function Gearbox:    • Lego Technic Multi Function Gearbox with B...   Lego Technic Dual Function Gearbox:    • Lego Technic Dual Function Gearbox