Лего - наркомания

Lego Great Ball Contraption (GBC) in my house. my own 17 modules tracking the blue and red balls. running at 1.0 balls/sec 500 balls size : × path length : 31m construction time : 600 hours my blog 1. ball factory (inspired by superbird28) 2. zigzag stair 3. zigzag lift 4. pneumatic (sometimes spilling balls) 5. cup 6. screw T1 7. basket shooter 8. mechanical train (lack of reliability) 9. screw T2