HOW TO FIX ELEPHANT'S FOOT ON 3D PRINTS

Elephant's foot is when the first few layers of a print bulge outward slightly, making the bottom wider than the rest of the model. It's named after how it resembles an elephant's wide foot compared to its leg. While it may seem cosmetic, it causes dimensional inaccuracy and can prevent parts from fitting together.

Several factors cause elephant's foot: • Nozzle too close to the bed — Over-squishing the first layer forces filament outward. • Bed temperature too high — Excessive heat keeps the bottom layers soft and they deform under the weight of upper layers. • Cooling fan off for too many layers — Without cooling, lower layers stay soft longer. • Heavy print weight — Tall, heavy prints compress the still-warm bottom layers. • First layer flow too high — Over-extruding the first layer pushes material outward.

The fastest fix is to use your slicer's "Initial Layer Horizontal Expansion" or "Elephant Foot Compensation" setting. Set it to -0.1 to -0.2 mm. This intentionally shrinks the first layer inward to compensate for the bulge. Raise your Z-offset slightly (move the nozzle up by 0.02–0.05 mm). The first layer should be squished but not smeared. Lower bed temperature by 5°C after the first layer. Some slicers let you set different bed temps for the first layer vs the rest. Use 60°C for the first layer and 55°C after for PLA. Enable the cooling fan starting at layer 2 instead of layer 4. Earlier cooling solidifies the lower layers faster. Reduce first layer flow to 95% if your e-steps are already calibrated correctly.

Use your slicer's elephant foot compensation as a default (start at -0.1 mm). Calibrate your Z-offset precisely — use a first layer calibration print. Don't over-squish the first layer for adhesion; use a brim instead. Lower bed temperature after the first few layers.