Ehh he's fabbing up stuff because it doesn't exist and then putting it out there for others if they need it. If he wants to charge a few bucks for all the R&D then what's the harm in that? You can buy a 3D printer for like $250 and if you have a lot of custom work then it could be worth it. I've read this entire thread and I read it as him doing it for himself not necessarily to make a ton of money off of it.
and....
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Nothing is more important than weight distribution.
As a basic.... If you scale the truck empty and after fully loaded and the FWC adds weight to the front axle.... maybe you are good to go. BUT if fully loaded the front axle is lighter than it was empty.... IE the FWC is not in the box.... Definitely do not do it.
It’s interesting that all the photos are of compact trucks. Tundras are definitely stronger trucks, but any truck can be overloaded, as well as loaded incorrectly in a way that results in a frame failure.
I was looking at pop-ups for my crewmax but anything that would be an appropriate weight was too bare bones. We spend a lot of time in our camper, and an indoor toilet and shower is a must. We don’t need a giant bath, but we do need one. A 4 Wheel Hawk would be the right weight, but a Hallmark Ute is what I’d really like.
In the end, we decided on a small “offroad” trailer. It’s pretty low profile, and gives us the ability to drop it as a basecamp in order to explore without packing up the “house” every time.
If you want a Tundra and a truck camper, I would definitely look for the 6.5’ box.