[cbhl]

"SpaceX chose to use an industrial grade (as opposed to aerospace grade) ... cast part"

Hmm.. Isn't this a common cost-cutting strategy for Musk's companies? The touchscreen in the Model 3s was (is?) also industrial grade, if I recall correctly.

[jacquesm]

> The touchscreen in the Model 3s was (is?) also industrial grade, if I recall correctly.

Isn't that exactly what it should be? Or would you expect aerospace grade material there? Or is there yet another grade in between called 'automotive'?

[tomatotomato37]

Yup! I think the common electronic tolerances go: commerical, industrial, automative, military, aerospace, and then space, though I may be missing one or two.