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This GraviTrax Christmas tree marble run actually works! Great to watch while opening your GraviTrax Advent Calendar. Click the …
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Supercharge your Marble Runs with the Bambu Lab A1 3D Printer
I spent 1000 hours printing 250 add-on accessories for GraviTrax marble runs on these 3D …
Very cool👍
Are you also watching my videos?
Your jumpers are working so perfectly 🥳 We often have to put Scoops before them to really make them launch … Especially for full runs we rarely dare to take the risk of them ruining it all otherwise!
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