LEGO Great Ball Contraption (GBC) Layout 2012.9

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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 : 1.5m×6.5m
path length : 31m
construction time : 600 hours

my blog http://legokarakuri.blog91.fc2.com/


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
10. screw T3
11. spiral lift T2
12. elevator & coaster (coaster inspired by Hidaka's ball rolling)
13. fork
14. spiral lift T1 & step
15. catch & release
16. belt conveyor & pinball
17. 5-axis robot S750