Blade Runner Redux - Tesla Cybertruck!

[oldtamiyaphile]

Originally Posted by redpoint5

I still don't know why people put deposits down since they are utterly useless. Those that put $1000 deposits down day one for a Model 3 had to wait a year to purchase the $35k version, if that's the one they wanted, and by that time the federal tax credit had been cut in half to $3750... then Tesla cut prices across the board.

People who didn't put deposits down had to wait even longer I suppose, and would have missed out on the tax credit regardless?

[redpoint5]

Originally Posted by oldtamiyaphile

People who didn't put deposits down had to wait even longer I suppose, and would have missed out on the tax credit regardless?

What I'm saying is that Tesla didn't deliver vehicles in the order in which they were reserved, but instead by those who wanted the most expensive version of the vehicles first. Maybe the deposit got your very expensive top trim version of the car a day sooner than others after having waited 2 years with the deposit having been paid.

Those that wanted the $35k version had a 2 week wait or less once it was made available, deposit or not. Order one now and you can get it in less than 2 weeks, made to order.

[freebeard]

If the CT is a success, I've been wondering if this concept might find it's way into other segments. Flat panel carbon fibre instead though

Carbon fiber shatters. Basalt fiber deforms instead. https://www.basalt.guru/#

[Hersbird]

Originally Posted by oldtamiyaphile

The whole point of the design is to minimize production cost/ time. Toyota UK quote 'up to' 15hrs per car spent in paint, that's a lot of effort when you're making 250,000 of the things.

Toyota Japan quote 17-18 hours to build a whole car.

Perhaps someone can find a better break down of those numbers, but it's clear not painting a car saves a stack of time and money.

To be fair the 15 hours of paint is probably 14 hours drying. I doubt the Toyota numbers count the paint process at all but are talking about assembling which is done after paint. The paint process is automated in a line but materials have to be expensive.

" Basically, the body is washed, degreased, electrodipped in zinc phosphate, oven baked, sanded, sealed, dried, cleaned (with chemicals), primered, baked, painted, baked, clear coated, baked and then inspected for faults (which are repaired). All high volume manufacturers have fully automated lines that take between 14-18 hours to finish a single body."

https://cabinaslagos.com/analyzing-t...n-the-factory/

[aerohead]

I rifled trough my archive,worked on an 11" by 17" rendering of the Cybertruck,and did some questimating based on some published values compared to the Motor Trend road test of a Model S P85.
I came out with an estimated: Cd 0.281, 38.53 sq-ft frontal area,and 6,041-lbs EPA test weight.
The long version is at the Aero Forum where Cybertruck is also being discussed

[freebeard]

That's more believable than the early 0.48 estimates.

While the form's efficiency is important, I've been looking at the hydrophobic transparent ALON windows. In dry climates (sand) or cold climates (hail) the savings in glass replacement becomes significant. Plus, no wipers.

Cameras in the trailing edges of the front wheel well flares.

[ldjessee00]

Due to the pre-orders, they have moved around when which model will be produced...

https://www.mercurynews.com/2019/12/...tion-timeline/

Now, did they manipulate people to order more of the top tier model by making it come later, then move it around now after the fact or was it really due to 'natural' demand of more people wanting the top model, so it makes sense to manufacture it first?

[aerohead]

Originally Posted by freebeard

That's more believable than the early 0.48 estimates.

While the form's efficiency is important, I've been looking at the hydrophobic transparent ALON windows. In dry climates (sand) or cold climates (hail) the savings in glass replacement becomes significant. Plus, no wipers.

Cameras in the trailing edges of the front wheel well flares.

With 'conventional' fastback models of zero camber and tumblehome,and rear departure angles of 28.5-degrees,and bi-stable flow,sharp edges would produce Cd 0.485.
Cybertruck's aggressive front slope,subtle curvature,along with plan-taper/camber,and tumblehome places it squarely in a different category than the primitive models that would produce Cd 0.485.It may just be an innocent oversight on the part of the CFD modellers.Also,the only CFD we know that will produce the proper results,is the Dassault Systemes' Exa Corporation's PowerFLOW software,requiring supercomputer,or a few hundred desktops in parallel processing,like they're doing with SETI.
The ALON is very cool.Dates back to the early Star Trek motion pictures,and 'transparent aluminum' aquarium, with which to transport the whale.

[freebeard]

Jack Rikard does a deep dive on aluminum oxynitirde. It was developed in 1980 around the time of the movie, and was renamed as such in 2002.

https://youtu.be/Dum1s4gfSD4?t=2944

It's a powder that is sintered under heat and pressure. It was mentioned in the semi truck rollout, which was shown with a compound curved windshield.


9:06 — WD-40 was invented as a coating for stainless steel by NASA

[ldjessee00]

Originally Posted by freebeard

Jack Rikard does a deep dive on aluminum oxynitirde. It was developed in 1980 around the time of the movie, and was renamed as such in 2002.

https://youtu.be/Dum1s4gfSD4?t=2944

It's a powder that is sintered under heat and pressure. It was mentioned in the semi truck rollout, which was shown with a compound curved windshield.


9:06 — WD-40 was invented as a coating for stainless steel by NASA

Yes, he is a very knowledgeable with lots of experience.

What I found most shocking and was totally new information was the huge difference weight makes in being injured in an accident.