Introduction: K'nex Ball Run Christmas Tree.
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About: We love k'nex, 3d printing, electronics, painting and all sorts of other cool things.
I usually build a ball run for Christmas this year I decided to build one that looked like a Christmas tree. It is 4ft 3in tall and has 9 k'nex men on it. The star is 8 pointed and is made by making a crown out of the pieces and folding the two opposite points together.
Step 1:
The ball does fall of and get stuck on its way down but is is because the turns. I hope you like it and can copy it from the pictures if you can't or have problems with leave a comment below.