Failure guide

Elephant Foot Fix

Elephant Foot Fix helps you separate a visible print defect from the usual lookalikes: dirty surface, wet filament, nozzle state, motion problems, and copied slicer settings. Start with the quickest physical check, then make one testable change.

Independent third-party notes. Verify firmware, heater, electrical, and vendor-specific work against official documentation for your exact printer.

Quick Readout

Visual diagnosis

Match the visible pattern before changing settings.

Looks like this

Nozzle is too close to the bed or the first layer is over-squished.
Bed temperature or chamber heat keeps the bottom layers soft for too long.
Initial layer flow or line width is too high for the part tolerance.

Not this

The printer is showing a firmware, heater, or electrical safety warning.
You are copying numbers from a different printer as final values.
Several slicer values have already been changed without a repeatable test.

Look for Elephant Foot Fix is useful when the defect is visible on the part and you need to decide whether the cause is material, surface, nozzle, motion, or slicer profile. The page is ordered so the fastest reversible check comes before bigger changes.

First test Print a small calibration cube or dimensional test and measure only the bottom 2-3 mm.

Do not do Do not change several settings at once.

Still not matching?

Jump to the next likely diagnosis

Problem Pattern

Elephant Foot Fix is useful when the defect is visible on the part and you need to decide whether the cause is material, surface, nozzle, motion, or slicer profile. The page is ordered so the fastest reversible check comes before bigger changes.

Likely Causes

Nozzle is too close to the bed or the first layer is over-squished.
Bed temperature or chamber heat keeps the bottom layers soft for too long.
Initial layer flow or line width is too high for the part tolerance.
The model has sharp lower edges that need a small chamfer or elephant-foot compensation.

Print Context

Page type: symptom fix
Best first move: Reproduce the issue on a small test, then change one variable.

Recommended Checks

0/4 done

Print a small calibration cube or dimensional test and measure only the bottom 2-3 mm.
Raise Z offset slightly or reduce first-layer flow, then reprint the same cube.
If the bottom still bulges, lower bed temperature after the first layers or enable elephant-foot compensation.
For tight-fit parts, add a small chamfer to the model and verify the mating dimension.

Start with the first check. Keep this page open while you test. The checklist saves on this browser so you can come back after the print finishes.

Verification

Repeat the same test model or the same problem area after the change.
Compare before and after photos, print time, surface quality, and failure location.
Keep the previous profile until the new value passes at least two similar prints.
For firmware or heater-related issues, confirm logs stay clean after a safe heat or motion test.

After the test

Use the result, do not keep changing random settings.

If one check clearly changes the print, repeat that exact test once before moving on. If nothing changes, switch diagnosis instead of stacking more slicer edits.

Try next diagnosis Open full checklist

Warnings

Do not fix elephant foot by making the whole print under-extrude.
Too high a Z offset can turn elephant foot into poor adhesion.
Dimensional parts need measurement; photos alone can be misleading.

Useful when

A print that clearly shows elephant foot, especially if the same failure repeats.
You want one next move instead of five profile edits.

Skip if

The printer is showing a firmware, heater, or electrical safety warning.
You are copying numbers from a different printer as final values.

More traps to avoid

Changing several slicer settings at once and losing the actual cause.
Ignoring filament condition or bed cleanliness while tuning advanced values.
Keeping one global profile for different materials, brands, colors, and nozzle sizes.

Bench Note

Print-failure log to keep beside the printer

Page: Elephant Foot Fix
Printer / firmware:
Slicer profile:
Filament brand and material:
Nozzle size:
Bed surface:
Recent changes:
Result to compare next:

FAQ

What should I check first for Elephant Foot fix?

Start with the fastest physical cause you can confirm: surface condition, filament state, nozzle path, motion hardware, or the last profile change. Then run the same small test again.

Should I change slicer settings first?

Only after the physical checks make sense. Slicer changes are useful when they are isolated and verified with the same model or failure area.

When should I buy a replacement part?

Buy after a repeatable test points to wear, damage, missing drying, plate incompatibility, or a nozzle/material mismatch.

Sources

Prusa Knowledge Base - First layer issues Accessed 2026-05-18 Prusa Knowledge Base - Print quality troubleshooting Accessed 2026-05-18