Diamabolo Posted February 13 Posted February 13 Proof provided The Lego Part´s 7343 are rollercoaster-compatible! It works with the right incline. If they're too flat, they get stuck on the underside...if they're too steep, the balls fly out on the next curve. Quote
1963maniac Posted February 16 Posted February 16 Great concept! Great execution! Do you have instructions or more pictures to share? Quote
Diamabolo Posted February 18 Author Posted February 18 On 2/16/2026 at 7:56 PM, 1963maniac said: Great concept! Great execution! Do you have instructions or more pictures to share? Thank´s sorry no. The balltrack has already been dismantled. perhaps take a look at my similar build Quote
MAB Posted February 18 Posted February 18 (edited) Excellent! I'd love to see some scaled up Great Ball Contraptions for those! Edited February 18 by MAB Quote
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