To repair bed adhesion for 3D models, makers typically adjust bed level, clean the print surface, or tweak filament/slicer settings.
- **Level the bed**: Ensures even first-layer contact—uneven beds cause lifting or gaps. - **Clean the surface**: Wipe with isopropyl alcohol to remove grip-reducing oils or residue. - **Tweak settings**: Increase first-layer flow, slow first-layer speed, or use a glue stick for PLA.
For persistent issues, use a heated bed (ABS/PETG) or dry filament (moisture harms adhesion). Test small prints to refine—simple, low-effort way to fix adhesion fast.