Security looks to be the real downside of something like this. Much easier to quickly gain access than with a nice lockable cargo carrier

@@gregorsamsa1364 when it's for dirty clothes and trash and stinky stuff you don't want in your living space, not a real issue.

Thanks Aaron!

he is full of them

thats a good idea

I didn't notice any lifting or shifting going on. It could be the wind hitting the windshield just passed over the crack.

Hi, physics enthusiast and general car guy here. This box is shaped well enough so the downward force exerted by the wind on the front slant is high enough to mitigate the amount of upward force provided by the little "scoop" on the underside of it, meaning if this were properly mounted on rails it would make little to no difference. However the boxy back side has no aerodynamic assistance whatsoever, and will increase your coefficient of drag due to the fact that there are no air effects to prevent that drag from being created, and may also damage the box itself depending on its structural integrity. Making a trapezoidal prism of sorts to put on the back instead to give it more of a teardrop shape would dramatically decrease this and keep the overall vehicular drag relatively normal, as well as prevent any possible future damage to the cargo carrier. Good luck on future builds, and have fun!

Why not put two of them in tandem and make the two of them more streamlined

Put one on the rear lid of your trunk

The top front portion is actually the same folds as Sparky, my electric boat. This challenge was similar to an origami challenge: to see what you make folding one sheet of coroplast (and a few cuts)

Thanks boat head. When are you going to try out a coro boat?

Paul Elkins i would love to make a fleet of coroboats! the weight advantage alone would be huge! i havent been able to locate the stuff... any tips? what should a fella expect to pay for a sheet?

Here's home depot's on line link. Looks to be around 35 per sheet. They come in 5 packs. www.homedepot.com/s/fluted%2520plastic?NCNI-5

Paul Elkins thanks pal!! im already planning!!

I like that idea! Thanks for your input.

On the rocket stove question, you must be thinking of someone else. I did however try to make a foldable arced style Coroplast camper on my old truck but it was too hard to handle when setting up. I'm sure if I persisted it could have been done.

"match the same locations individually from inside the car roof"?? wouldn't that require removing the roof liner inside the car to place magnets close to the metal roof?

the end of Campaign seasons are the best time to find coroplast signs that are usually thrown away.

I've yet to look, but a section of a foam camper's sleeping mat could be added to underneath to prevent scratching I'd think.

Thanks Max. I am. I retired several weeks ago, but getting ready to move. Lots to do before I can go full bore.

Paul Elkins hope you like your new house

It's in a great location, but unfortunately it needs lots of fixing. Maybe I'll roll the camera and show everone some fix-it trix.

Paul Elkins that sounds like a good video

that would make a great video!!!

Thanks Josephine. I wasn't too computer savvy myself, but I found that most of my questions were answered on KZfaq. Just ask a question. More than likely someone has made a tutorial video on your question.

just posted my idea of that lol with a pt cruiser

No I don't, but after making a small box shelter 10 years ago for Burningman, I was hooked! I do realize its hard to find and varies in price, but Home Depot is starting to sell coroplast on their on-line web site for a decent price.

Have you thought of making videos and putting them on KZfaq? I'm sure there's some type of wisdom you could pass on to others. What I make is small, and it took time to get where I'm at, but it does pay off and I'm my own boss. Your imagination is the limit Josephine. Just an idea. (I use my digital camera for filming.)

I did get some moisture coming in on the door seals as you mentioned. The manufacturers of the bag cartop carriers suggest to loosen up the straps some when it rains. I'm not sure this would work that well. I'd rather have the load secure on top and wipe up the moisture.

about $20 on the Home Depot online store.

Paul Elkins in my location the small ones are $30.00+

Arg! I can go to a plastic supply and get a white sheet for $15 USD. $17 for colored. But, I live near Seattle (a big city)

Paul Elkins ah I live in Phoenix az

Thanks H of B. I plan to keep the ideas coming.

Control yourself!