Ten mils is .010" or .25mm if I’m not crazy.
It’s a very standard tolerance for aircraft parts.
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.
PsychedSy@sh.itjust.works 11 months ago
Rentlar@lemmy.ca 11 months ago
Yeah and that wouldn’t be too bad either… still expensive but not completely unrealistic for ALL parts of a car.
PsychedSy@sh.itjust.works 11 months ago
Kinda unreasonable for the number of cast parts most cars use, but for machined surfaces it shouldn’t be too bad.
macrocephalic@lemmy.world 11 months 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.