Your 3D model’s messy bed adhesion usually stems from improper bed prep, incorrect temperatures, or first-layer calibration issues.
Common causes include: - A dirty or unlevel bed (prevents even sticking). - Too low bed/nozzle temperature (stops filament bonding). - Over-extrusion or fast first-layer speed (causes blobs/lifting).
Fix it by cleaning the bed with isopropyl alcohol, checking bed level, matching temps to your filament (e.g., PLA needs 50-60°C bed), and slowing the first layer to 20-30mm/s.