The World’s Largest K'NEX Ball Contraption...
Guinness World Records has certified that this awe... ...has certified that this awesome machine built by Austin Granger (previously at Neatorama) is the world's largest... ...as 126,285 K’NEX pieces and runs 278 meters Granger is a 23-year-old computer science student at the...
https://www.neatorama.com/2016/04/12/The-Worlds-Largest-KNEX-Ball-Contraption/
