Introduction: K'nex Roller Coaster
This roller was built from the "steel scorpion" k'nex set.My friend from down the street got this set for christmas and gave it to me a few months ago.About a week ago we opened the set and tried to build it. Some of the pieces were missing and it didn't work very well so we decided to build our own and it works a lot better! You can see the video by clicking here
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