About: hi i am jordi from the netherlands i am 14 years old i like to build with knex :ballmachines and guns and coasters and other funy stuff from knex thanks to sorunome for 100th comment, 150 shadowman39
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Intro: Knex Rubber Band Launched Micro Roller Coaster
this is my firs micro rollercoaster.
I used hanging rollercoaster carts
build time : 3 hours