this post was submitted on 20 Oct 2023
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Elon Musk says 'we dug our own grave' with the Cybertruck as he warns Tesla faces enormous production challenges::Tesla CEO Elon Musk said Wednesday that the Cybertruck's unique design means the company faces immense challenges in scaling production.

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[–] [email protected] 25 points 1 year ago (2 children)

If he said <10 mils, I'd might have bought the explanation that Elon actually meant millimetres. Micron is a very specific metric-based unit which to Elon might have been trying to use like a buzzword.

The moral of the story is don't say stupid engineering stuff if you don't want engineers to laugh at you.

[–] macrocephalic 33 points 1 year ago

And 10 microns at what temperature? Because on something the size of a car, made of mixed materials, thermal expansion of less than a degree is going to blow that figure.

They couldn't apply paint to a tolerance of 10microns.

[–] [email protected] 4 points 1 year ago (1 children)

Ten mils is .010" or .25mm if I'm not crazy.

It's a very standard tolerance for aircraft parts.

[–] [email protected] 2 points 1 year ago (1 children)

Yeah and that wouldn't be too bad either... still expensive but not completely unrealistic for ALL parts of a car.

[–] [email protected] 3 points 1 year ago

Kinda unreasonable for the number of cast parts most cars use, but for machined surfaces it shouldn't be too bad.