New K'nex wheel design
I've been working on a new ball machine for a few years and finally decided to tear it down and start anew; one thing I did save was this wheel. It uses chain for a rim to make a "perfectly" circular wheel. With grey rods on every rim connector it is quite heavy, in my ball machine I used a delay to send 3 balls onto it at once to make it spin nicely. If you want you could only use once white connector and 8 grey rods to make a lighter frame that would spin well with only one ball on it.