Two 40 cm diameter bicycle front wheels were used. 12 mm plywood was used because the rim tube is 25 mm in diameter and I wanted to just make a sandwich and screw it together. The center of the hinge is a 25 mm diameter stick—it was an old broom handle.
I glued a piece of tire rubber to it so the wood wouldn’t slip. I don’t know if it can hold more than one sheet, but the design is to accommodate sheets of 9, 12, 15, or 18 mm.I had to adjust the wood a bit, because the forks weren’t all the same and came from scrap metal.
Cool! This reminds me of the little carts they sell to port a canoe or kayak (which always seem overpriced to me). I think this would be a great solution.
If you dropped the hinge below the hubs (center of rotation) it would right itself as the weight was applied and wouldnt need awkward hand interaction as well!
You’re absolutely right, I focused on that height because of the uneven terrain of my land to keep the wood away from the ground, but sometimes when jumping over obstacles it can change the center of gravity and try to rotate to get out of position, so I have to take the bumps with caution, lowering the hinge even a little would improve this. I also want to add handles to push it when it’s empty. Right now, carrying it to the site requires me to lift it.
You’re absolutely right, I focused on that height because of the uneven
terrain of my land to keep the wood away from the ground, but sometimes when
jumping over obstacles it can change the center of gravity and try to rotate
to get out of position, so I have to take the bumps with caution, lowering the
hinge even a little would improve this. I also want to add handles to push it
when it’s empty. Right now, carrying it to the site requires me to lift it.
put some hooks (wood or metal) on it so you can throw a ratchet strap over the
panel
