Fast endless Bi-directional spiral with an ho scale train Powered by what appears to be seven HO-scale locomotives, Risner’s creation also works in reverse. Facebook Prev Article Next Article Machinery Checkout these cool gadgets... Related Posts Tourbillon: Testing of a new generation theme park ride Interesting Puzzle Box Woodturning the Eye – Craftsman of Wood This Machine Eats Trees From The Top Down Use Your GoPro As A Drone With This Quadcopter Man Builds Tiny W-18 Engine
