Hey guys, I'm new here and so far I love this community! Anyway in my haunt this year I'm thinking of putting up a vortex tunnel. I tryed this last year with the ones that are drivin by a pvc pipe on the top, it worked good until the drill motor caught fire.. lol but luckly that was b4 it was open so we ended up hand turnning it. This year im going all out and building them the correct way with the bike wheels, rings, ect... so has anyone attempted this or have any advice? I've searched around the web but couldn't find any solid tutorials. so when i build mine Ill be throwing to gether a nice step-by-step with tons of pics.... but anyway help/ideas would be apperciated.