Just what are you trying to accomplish. I'm adding a quickie animation of andy spiraling down the cylinder, if you need to know how it was accomplished let me know.

... Lol, well that was supposed to be a 30 frame GIF, I guess those aren't supported, anyhow.. Andy is at top on frame 1 and bottom on 30. The image is showing the whole transition instead of frame by frame.

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Consider me insane if you wish, but is your reality any better?