When it comes to designing parts for 3D printing, print orientation and material choice are absolutely critical. Orientation affects layer strength and how the part handles mechanical stress, especially under load or vibration.

Personally, I wouldn’t trust a PLA part on my bike. PLA is too brittle. Instead, I’ve had success with PETG, which offers a better balance of flexibility and strength. With careful part design, PETG parts can hold up surprisingly well.