A Western Star 6900 Twinsteer made in Lego Technic. Remote controlled using Control+ and PoweredUp App for the drive, steering and winch. Tandem bogies suspensions with oscillating arm, removable hood with fake working engine, and openable doors complete the model, as well as a mud pump as the load. With Building instructions….
42100 Model C – Tracked Carrier
42100 Model B – Vibroseis Tracked Vehicle
An alternate model of the #42100 Lego Technic set, featured motorized drive and articulated steering, operated vibrator, fake engine with speed control, pendular tracks and central articulation, with openable elements, remoted control with PoweredUp or Brickcontroller2 app and building instructions….