Our Spik3r's wheels move but the Spik3r itself does not move. Please see the picture of the back of the vehicle - is it somehow incorrectly built?

enter image description here

  • 2
    So the motor-powered wheels roll freely when you hold the model up? And when you put it down on the floor it won't move? The insect-like legs are designed to be moved by the forward motion of the model. Check that these two leg sections are not blocked.
    – Gruber
    Oct 9, 2017 at 7:39
  • That wheel with the blue connector through it...does that rest on the ground? Because it cannot turn...
    – Rory Alsop
    Dec 19, 2017 at 22:40

1 Answer 1


You just need to flip the small motor the other way! enter image description here

  • 1
    The motor is indeed mounted upside down, which could result in the grey parts sticking out far enough that the wheels do not touch the ground anymore.
    – zovits
    May 2, 2019 at 15:38

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