Needed a square to round adapter for a paint booth blower fan, printed in PLA. Then I printed a TPU gasket that would squish and bend around the 90 deg corner so
Planet82 PLA-012505FAA 5V 2.5A Power Adapter - Grade A
Bambu Lab Spool Adapter for Overture Cardboard Spools by philltran | Download free STL model | Printables.com
1.75mm PLA 3D Printer Filament 1KG | ANYCUBIC 3D Printing – ANYCUBIC-US
Would a 3d printed pla adapter work with up to 4.5bar water pressure? : r/3Dprinting
Uputstvo za upotrebu PLA adaptera DHP-P601AV POWERLINE AV2 1000 GIGABIT
Polymaker Cardboard Spool Adapter for BambuLab AMS (Update V2.1) by JamKo76 | Download free STL model | Printables.com