I love the clever way the roof lift is done on these pop-up campers.
No hydraulics or fancy expensive mechanisms -- just simple mechanical elegance. Gotta love it.
It'd be great if I could see one up close so I can figure out the cheapest easiest way to duplicate this for my own DIY camper. I also wonder how it would change things if the popup was much taller, so the bars would have to cross. Hmm... Ideas, anyone?
In contrast, you can see the standard lifter system employed in Four Wheel Campers beginning at about 1:09 in this video.
...And in this video which gives a really nice explanation of the process beginning at 1:30.