K'nex Ball Machine Lift Powered by Gravity!

Hello, to begin with this is my first Instructable and of course its to do with my passion, K'NEX! this is a design for a ball machine lift that I have not seen before, as it doubles up as a money box! it uses the weight of coins that are dumped out when the weight of them out-weighs the ball on the other side thus lifting it up and dumping it out at the top. It needs dire improvement but I've gotten increasingly frustrated and gave up so feel free too use it in your builds if you want.

it can double up as an element as well, all you have to do is figure out a way of allowing the balls to enter where the coins usually do. I greatly encourage tweaking and changing it as well!