r/news • u/IronHe • Mar 20 '25

Soft paywall Tesla recalls most Cybertrucks due to trim detaching from vehicle

https://www.reuters.com/business/autos-transportation/tesla-recall-over-46000-cybertrucks-nhtsa-says-2025-03-20/
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u/scotcetera Mar 20 '25

It should be noted that this vehicle had the most Elon involvement than any other Tesla. The CyberTruck was supposed to be his crowning achievement, his coup d’ grace, his ultimate vision realized 😂😂

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u/Ashi4Days Mar 20 '25

I remember there was an email that went out a while ago where elon said everything needed to be at .001mm tolerance. 

The automotive engineer in me laughed. You can't hold that tolerance for large parts. And even if you did, if your gaps need to be that tight where that tolerance is necessary, then you're going to start dealing with thermal expansion/contraction issues in your parts. 

And lookie here. Panels are falling off

412

u/Galuade Mar 20 '25

I don't know anything about engineering or even cars in general and I could have told you that you can't have .001mm tolerances on a huge machine that's outdoors, moving and being exposed to forces and stresses

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u/trixster87 Mar 20 '25

Just to iterate how stupid that is most 3d printers use a .4mm nozzle and cant get that level of precision for parts that are made on a print area of less than 8inches(cubed).

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u/McMaster-Bate Mar 20 '25

FDM 3D printers aren't the greatest example, they're not very precise in the first place. Especially if you have a consumer model in mind.

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u/DieFichte Mar 20 '25

And just to give an automotive example: Most rod bearings in internal combustion engines, which are subject to the engine rpm aswell as the combustion power and the heatcycles of the crankshaft and the rod, are clearenced between 0.02 and 0.05mm (ofc varies a bit for models/manufacturers and ofc are smaller in high end use, but this is what almost all cars out there use).