In GraviTrax Set vs. Set, we compare the contents of GraviTrax marble run sets. In this episode, we compare the GraviTrax XXL … source

These 3D-printed Zigzags for GraviTrax marble runs were built by the MarbleMania3D shop on Etsy. I purchased one of these … source

Join Chris from The Masked Marble as he unboxes the GraviTrax Trampoline Expansion! This marble run extension adds 2 … source

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A new GraviTrax trick to launch a cascade of marbles from a seesaw. It’s a tricky trick to make it work, but the wow factor is high. source

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Build working computers out of marble runs! Build a new digital logic circuit each week using the GraviTrax marble run system. source

I’m reviewing over 70 GraviTrax add-ons from 7 Etsy shops. In this episode, I review add-ons from TracksCreations. Add to your … source

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Here’s a great GraviTrax Trick! The 3-in-1 and 2-in-1 GraviTrax merge pieces are rare, because GraviTrax starter sets only contain … source