Otto needed some new faster way of getting around and borrowed some tracks from SMARS.. made by @s4snow
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updated February 11, 2026

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Hi, nice design, trying to make one right now!

How do you connect the mechanical tracks (elements) with each other? It looks like you printed rods, but my guess is that won't hold. What did you use?

Many thanks!

@PhilippLiehm_1312217 use the same filament wire, cut into segments as you put in the holes

@hprobots Thanks for the reply! Although I don't understand it and feel a little stupid;) What "filament wire"?
I just printed a thin rod now and cut it in pieces. But I would still be curious about what you mean:)
Thanks!

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Had so much fun building it with my kids and leaching with it in the classroom! Great STEAM project!

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Hello. I have already built the model entirely, but Have a problem, the track belts are too tight and the motors don't spin. Without it, it moves freely, but the wheels are too lose. Any suggestions how I can fix it? Each belt has 16 tracks.

@StephanieDuve_330406 you can try 17 tracks instead or enlarge one side of the segment track (edited)