We've all seen the static armature balancers... you know the razor blades or the jeweler's poising tool. But the slickest balancers I've seen are those magnetic ones. They are great but they are pretty pricey. That said, I did some research on the webbernet and found this article in Slotcar Illustrated's forum by "jaybo" It was a great article and gave me a great start. If you are interested in making your own balancer then read on.