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3D printed black glasses among white complex shape object samples made with 3D printer, sitting on white surface Stock Photo - Alamy
![Hardest shape I've ever 3D printed. 200hrs of printing and countless failures to get one working F1 gearbox shift barrel with decent print quality. : r/3Dprinting Hardest shape I've ever 3D printed. 200hrs of printing and countless failures to get one working F1 gearbox shift barrel with decent print quality. : r/3Dprinting](https://preview.redd.it/6dsk0b2f8q151.jpg?auto=webp&s=ca271bf92fd0ad7d0e1afac1a80bdeca5e80d22e)
Hardest shape I've ever 3D printed. 200hrs of printing and countless failures to get one working F1 gearbox shift barrel with decent print quality. : r/3Dprinting
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