Motorized Excavator with Infrared Remote Control & SBrick

An excavator has six actions: left and right tracks, slewing, boom, stick and bucket.   The original model has only two sets of IR remote control, controlling four motors.  Out of cost control or other reasons, the designer cleverly used the fourth motor as a switch.  The other three motors controlled the left, right track and slewing, by switching the fourth motor, the other three motors were then controlling the boom, stick and bucket.

Of course, some of the enthusiasts would definite not happy about this arrangement and started their own modifications.   Jurgens' modification, using three set of IR remote control and six motors were widely adopted by many people.   You would require to purchase an extra of 180 pirces of parts and power function components to complete the modifications.

Motorized Excavator 8043

This motorized excavator was originally modified by Jurgens. 

Three IR receivers, six motors and one battery case were tightly squeezed into the back of the excavator.

Left controller to control the slewing and stick, right controller to control the boom and bucket.

Middle controller, upside down to control the left and right tracks

Ultimate 8043s

Two SBricks replaced three IR receivers.

SBrick control panel designed by Jurgens.