So I was building Spik3r and I thought I got mission 2 completed. Wheels are turning, legs are moving but the robot just does not move.

It looks like the small wheels should be moving the robot but they barely touch the table surface.


  • It looks like the wheels aren't correctly mounted. As far as I remember you're right that the Spik3r is moving with the small wheels. Can you provide an image or two from the bottom of your model? It's hard to guess what happens just with the video on YouTube. Aug 30, 2016 at 19:19
  • 1
    Thank you! While taking a photo of the model I notized that the front engine is wrong way. imgur.com/PINYPDb Aug 30, 2016 at 23:46
  • Can you please post that as an answer so that this question doesn't mistakeably be considered an unanswered question? May 18, 2020 at 20:50
  • no, I need to someone answer that one.
    – LKBricks
    Apr 16, 2022 at 10:33


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