Gravitrax.trek.pub
GraviTrax and Lego combine to make a 10′ marble bridge! Buy me a pizza! (shop my affiliate links)… ▻ Bambu Lab 3D Printers …
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2ND TRY – will the marble finish?
Build this track with app code 6OEJGJD669. Go into the GraviTrax app and enter the …
I think that the supported bridge will last longer 🙂