Cool, really cool. I really wish I could've seen that as a kid. Not asking, but logical next step is to go 3-D with straight-cut gears & helical-cut &c &c. A

Cool, really cool. I really wish I could've seen that as a kid. Not asking, but logical next step is to go 3-D with straight-cut gears & helical-cut &c &c. Anyone else play Gizmos & Gadgets as a kid? I can't help but flash back; I feel like that's how I learned "gearing" (and magnets, and maybe more..).