K’nex: Surprise Box

Jelle Bakker made a Surprise Box for marbles (be sure to check out his You Tube channel.)  I thought it was really cool, so I decided to make my own out of K’nex. (I am even making one for marbles!)  Here’s how it works:  First, a ball enters through the top, but doesn’t exit out of the bottom.  Then a second ball enters through the top, hits a bell, and then exits out the bottom.  When a third ball enters in through the top, surprise!  It exits out the side along with the first ball.  Below are some pictures and the video.  Note:  I filmed and took pictures of the Surprise Box while it was attached to my upcoming ball machine.  Click Continue Reading to see the pictures. Front View Top View Of Inside Back View Dumper View Track to the Bell Floor and Track Leading Out Track Leading Out


*Please use "Knextus" not the blog author's real name

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