The scissor lift mechanism isn't used much in the pop-up industry anymore, there is probably a reason for that. Not trying to pee in the punch or anything but you might want to look at the telescoping winch mechanisms that are most commonly used. I think they might actually be a bit easier to engineer and at the end of the day be more robust.
Last edited by rusty_tlc; 01-20-2011 at 02:33 AM.
.- -.. --... -. .--
Rust never sleeps.
1975 FJ40 "Mr. Bill" not quite stock, I'm thinking about getting a hula girl for the dash.
1998 UZJ100 [strikeout]Bone stock, ready for change.[/strikeout] getting less stock all the time
1984 FJ60 What the heck was I thinking? Another Cruiser?