▲ 37 ▼ Great Ball Contraption at Japan Brickfest 2025 (www.youtube.com) submitted 11 months ago by recursive_recursion@piefed.ca to c/lego@piefed.social 2 comments fedilink hide all child comments cross-posted from: https://lemmy.world/post/39045469
[–] ArmoredThirteen@lemmy.zip 1 point 11 months ago How do they prevent buildup at bottlenecks? permalink fedilink source