Last updated: October 24, 2026

How to fix elephant's foot on 3D prints

You pull a print off the bed and the very bottom edge sticks out in a little lip, wider than the walls above it. That flared base is called elephant's foot. It's one of the most common beginner print problems, it's usually mild, and the fix is a few small changes to how hard the first layer is squished and how hot it stays. Work down this list in order.

How to recognize elephant's foot

A ridge or lip around the bottom edge of the print, usually only the first layer or the first few
The bottom of a box or cube measures wider than the top
Parts that should fit together won't, because the bottom edge catches (lids, boxes, snap-fits, holes)
Holes on the bottom face are slightly smaller than they should be

Bambu Lab explains it well: the first layer is pressed onto the heated bed and stays soft, and the layers above keep pressing down on it before it has fully set. Together, those make the base spread outward. Larger models with wide bases usually show it more.

This is different from warping, where the corners lift up off the bed. With elephant's foot, the base is stuck down fine. It's just too wide.

Step 1: Decide if it matters for this print

A tiny lip is normal. Your first layer is supposed to be squished a bit so it sticks, which makes it slightly wider. Prusa notes that for many prints this isn't an issue at all, and Bambu Lab says a slight elephant foot can be ignored on most decorative parts. It matters when parts need to fit, slide, snap or sit flush: think lids, boxes, hinges, rails and anything with a hole for a screw or shaft. If your print is a figure or a vase and the lip is small, you can skip ahead to step 7 and just trim it.

Step 2: Check the nozzle isn't too close to the bed

The biggest cause beginners can fix is a first layer that's squished too flat. If the nozzle starts too low, it flattens the first layer into wide, thin lines that spread past the edge of the model.

Look at the first layer. Lines that look very flat, shiny, see-through or rough, or ridges where the nozzle plowed through plastic, mean the nozzle is too low.
Raise it a little. Adjust the Z offset (sometimes called "nozzle height" or "live adjust Z") up in small steps, about 0.02 to 0.05 mm at a time, and print a test square. See how to level a 3D printer bed for how Z offset works on manual and auto-leveling printers.
Don't go too far. If the lines turn round and separate, or the print stops sticking, you've raised it too much. Come back down a step.

Some printers set the nozzle height automatically. If yours does, skip to step 3 rather than fighting it.

Step 3: Turn the bed temperature down a little

The warmer the bed, the longer the first layer stays soft enough to spread under the weight above it. If you've turned the bed up to help a print stick, that can be what's causing the bulge. Try dropping the bed by about 5°C, staying inside the range printed on your filament box or the maker's website. Check the next print still sticks. If corners start lifting, go back up: a little elephant's foot is easier to deal with than a failed print.

Step 4: Big bulge? Lower the nozzle temperature

If the bulge is large or runs up several layers, the plastic may simply be too hot and slow to firm up. A tip that comes up again and again (including in the comments on Prusa's own article) is that dropping the nozzle temperature by 5 to 10°C often helps more than any slicer setting. Stay within the filament's recommended range. Too cold and you'll get weak, under-extruded walls, which we cover in how to fix under-extrusion.

Also check the first layer isn't over-extruding. If you've raised "initial layer flow" or first-layer line width a lot to help adhesion, that extra plastic has to go somewhere, and it often ends up sticking out of the sides.

Step 5: Use your slicer's elephant foot setting

Most slicers have a setting made for exactly this. It shrinks the outline of the first layer slightly, so that once it's squished, it ends up the same width as the walls above. Where to find it:

PrusaSlicer: Print Settings → Advanced → Elephant foot compensation. You need Advanced or Expert mode to see it. Prusa says values around 0.2 mm usually work well for the standard 0.4 mm nozzle, and its official profiles already have it switched on.
Bambu Studio: Process → Quality → Precision → Elephant foot compensation. Bambu Lab says the default is fine for general models. Its defaults vary by printer (Bambu Studio 1.8.4 set 0.15 mm for X1 and P1, 0.075 mm for the A1 and 0 for the A1 mini), so on an A1 mini this may be switched off.
Cura: it's called Initial Layer Horizontal Expansion, in the Walls section (you may need to show all settings). Enter a negative number to shrink the first layer. Experienced Cura users commonly start around -0.1 mm.

Two things that look like bugs but aren't:

The brim doesn't touch the model in the preview. Both Prusa and Bambu Lab say this is expected: the preview doesn't show the real squish, which fills the gap when it prints. If the brim truly doesn't connect on the printed part, your compensation is set too high.
A setting of 1 mm or more. Prusa says that with a 0.4 mm nozzle you shouldn't need more than about half your first-layer line width. If you do, the real cause is elsewhere, so go back to steps 2 to 4.

Change one setting at a time and print a small test each time. If you lower the nozzle, the bed temperature and add compensation all at once, you won't know which one helped, and you may swap elephant's foot for prints that won't stick.

Step 6: Parts must fit? Measure a test cube

For parts with tight tolerances, Bambu Lab's wiki gives a simple method that works with any slicer:

Clean the build plate and make sure your bed leveling is up to date.
Make a 25 × 25 × 10 mm cube (most slicers can add one for you). Set elephant foot compensation to 0 and turn the brim off.
Print it and let the bed cool to room temperature before removing it, so you don't bend the bottom.
With digital calipers, measure the cube's width near the top in both directions (X and Y). Measure in the middle of each side, not the corners.
Measure the width at the very bottom edge the same way. Touch the jaws lightly, because squeezing the soft lip gives a reading that's too small.
Subtract top from bottom for each direction, then average the two. Bambu Lab's example: X is 25.07 − 24.98 = 0.09 mm, Y is 25.11 − 25.00 = 0.11 mm, so the compensation value is 0.10 mm.

Enter that number as your elephant foot compensation. Bambu Lab notes the right value can change with a different build plate, so measure again if you swap plates. No calipers yet? They're on our list of 3D printing tools for beginners.

Step 7: Design around it, or trim it off

Add a chamfer. If you design your own parts, a small 45° chamfer (about 0.5 mm) on the edges that touch the bed hides elephant's foot completely. The slight flare just fills the chamfer instead of sticking out.
Trim what's left. A small lip comes off easily with a deburring tool or a sharp craft knife run around the bottom edge. Always cut away from your fingers. A few strokes with fine sandpaper finishes it.
A raft lifts the model off the bed so the bulge ends up on the raft instead of your part. It wastes filament and leaves a rougher bottom, so treat it as a last resort.

Quick reference: symptom and likely cause

What you see	Most likely cause	Go to
Tiny lip on the bottom edge, print looks fine	Normal first-layer squish	Step 1 (or trim it, step 7)
Very flat, shiny or rough first layer with a wide lip	Nozzle too close to the bed	Step 2
Bulge got worse after turning the bed up	Bed too hot, first layer stays soft	Step 3
Bulge runs up several layers, worse on big prints	Nozzle too hot or first layer over-extruded	Step 4
Lids, boxes or snap-fits don't fit at the bottom	Compensation off or set wrong	Steps 5 and 6
Brim not connected to the printed part	Compensation set too high	Step 5

Sources

Checked October 24, 2026: Bambu Lab Wiki, Elephant foot compensation and Bambu Studio 1.8.4 release notes; Prusa Knowledge Base, Elephant foot compensation; PrusaSlicer 2.2.0-alpha1 release notes (adaptive compensation); UltiMaker, Cura quality settings and UltiMaker Community: elephant foot.

Your next step

Bottom edges straight again? If the changes made your prints stop sticking, read why your first layer isn't sticking and find the middle ground. If the corners are now lifting instead, see how to fix warping.

Frequently asked questions

What is elephant's foot in 3D printing?

Elephant's foot is when the very bottom of a print, usually just the first layer and sometimes the first few, bulges out wider than the walls above it, like the flared base of an elephant's foot. It happens because the first layer is squished onto a warm bed and stays soft while the weight of the layers above presses down on it.

What causes elephant's foot?

Two things working together: the first layer is pressed hard against the bed so it starts out a little wide, and the warm bed keeps it soft enough to spread further as more layers are added on top. A nozzle set too close to the bed, a bed that is hotter than needed, and a very hot nozzle all make it worse. Bigger, heavier prints with wide bases usually show it more.

Is a little elephant's foot normal?

Yes. A tiny lip on the bottom edge is normal on almost every printer, because the first layer is deliberately squished to make it stick. Bambu Lab says a slight elephant foot can be ignored on most decorative parts. It only matters when parts need to fit together, slide, snap or sit flush.

What elephant foot compensation value should I use?

Start with your slicer's default. Prusa says values around 0.2 mm usually work well for a standard 0.4 mm nozzle and its official profiles turn it on by default. Bambu Studio uses printer-specific defaults. For parts that must fit, print a test cube with compensation set to 0, measure the bottom and top with calipers, and use the average difference as your value.

Will fixing elephant's foot make my print stop sticking?

It can if you overdo it. The first-layer squish and a warm bed are what make prints stick, so change one thing at a time in small steps: raise the nozzle a little, drop the bed 5 degrees C, and check the first layer still looks smooth and attached. If prints start lifting, go back a step.