# https://youtu.be/bXZm5mLLaok like this? YouTube Roman Tronics | K'nex Automatic Launch Roller Coaster Custom made k'nex launch roller coaster. Using an Arduino board and electrical components this roller coaster is completely automated and runs on loop while it is activated. Song: Retouch - Vinilstyle https://www.youtube.com/watch?v=fhEJAhXix8Q ▶ Play video
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