alt Hacker NewsManufacturers who use 3D printing use specialized 3D printers, not the same thing that hobbyists use.
They also handle all of the testing of parts to ensure they meet the design spec and they have the equipment to validate each printed part to ensure it doesn't have any major defects.
You can see the layer lines in the part. WTF? I don’t build aircraft parts. But I sure as hell wont use thermoplastics in this situation. I don’t even 3D print parts for mildly hot environments where failure is just annoyance.
Whoever built this should be charged.