Munro: Cybertrucks exoskeleton & castings deep dive w/ Tesla's Head of Vehicle Engineering

[HaulingAss]

What's are the bumpers made of? My guess is its stamped high strength boron steel.

Would that be safe for pedestrians and children?

Ha-ha, just kidding! I just find the sudden concern for pedestrian safety funny, since all cars are very lethal to pedestrians, especially the tall vertical front ends of most pickups.

I suspect a better bumper material might be a medium strength steel (for reasons other than pedestrian safety), but that's just a guess.

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[ziggy]

I think you're right in that they wouldn't want to use anything novel. Just to avoid NHSTA or somebody else giving them grief for creating a killing machine.

 

[JBee]

I can’t see his comment (and he can’t see mine), and it’s not nice to talk behind someone’s back (though to be fair, in this analogy, med-convo *he* turned his back towards me):

please just keep asking him “source?”

Lol another one on the list?

Looks like facts have a bad rep around here. ?

 

[JBee]

Why would I waste my time searching through your old posts? I have nothing to prove to you, the record is already clear (and if you were honest with yourself, you could see how dramatically your position has morphed over time).



Huh? I was the one schooling you on torsional rigidity from the beginning of your anti-exoskeleton silliness. You brought up the torsional rigidity of the bed long after I first schooled you on exactly how that works but you continue to push back as if you understood from the beginning.

Whatever, it's not worth my time now that the truth is out of the bag.

Making up stuff is easier anyway.

I do find it interesting that only your faulty recollection makes it in your truth bag though.

I'm just here to discuss what is, not what isn't.

My post on exoskeleton from November 2019:

I said the exact same thing when it rolled on stage....cut a bit off the top and make it round. But then I thought of the whole exoskeleton thing (I'd like to know how exactly that differs from a monocoque chassis) and the fact that the roof apex is essential for transferring the structural loads of the wheels and mass throughout the body, as it forms a triangle. It appears the "chassis" frame is actually two triangular trusses on either side of the car, that is then interconnected by the crossbars in the roof, front of the windscreen and rear window, essentially forming a bridge like structure. Like a flatter version of this:

Together with the battery forming the floor of the "bridge", this design is very efficient overall, and should lead to exceptional torsional and longitudinal stiffness, which is essential for a off road vehicle, let alone a vehicle that needs to carry weight. Together with the use of stainless steel could see a overall reduction in weight, like with Starship. Not having any paintwork significantly reduces the manufacturing setup cost ($200m) and because the two sides are the chassis allows most of the steel to be used there, which results in enough material to make it bullet proof. (I'm not 100% on how the doors tie into the structure yet) That is quite a good way to leverage all of the design components to add a extra "feature" IMHO.

This was nearly a year before you were even a member here bud.

At least what I said over 4 years ago now still tracks true with what they discussed in the video above.

Peace! Mike drop.

 

[HaulingAss]

Making up stuff is easier anyway.

I do find it interesting that only your faulty recollection makes it in your truth bag though.

I'm just here to discuss what is, not what isn't.

My post on exoskeleton from November 2019:



This was nearly a year before you were even a member here bud.

At least what I said over 4 years ago now still tracks true with what they discussed in the video above.

Peace! Mike drop.

It looks like you've almost gone full circle! From exoskeleton fan to exoskeleton denier and almost back to exoskeleton fan!

Your opinion has morphed more than I first thought. Forgive me if I didn't read your posts from 2019, but you have been all over the board. My analysis has remained constant. I'm just glad that you've given up your silly belief that the load paths don't go through the skin (because they always take the most direct path, lol!).

Everything is right in the world once again!

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