How to Fix 3D Print Warping with Brims?

Warping is one of the most frustrating issues for 3D printing beginners—your print starts great but corners lift, ruining the whole thing. It happens due to uneven cooling, poor bed adhesion, or drafts, especially with materials like ABS or large prints. Don't worry; adding a brim is a simple, effective fix that extends your print's base for better grip without much extra material.

In this guide, you'll learn step-by-step how to add and optimize brims in free software like Ultimaker Cura. You'll prevent warping on future prints, saving filament and time. The process takes just 15-30 minutes to set up, plus normal print time, and requires no advanced skills—just your printer and slicer.

By the end, expect perfectly flat first layers every time, even on tricky prints.

▸What You'll Need

• •3D printer with heated bed (e.g., Ender 3 or similar)
• •Slicing software: Ultimaker Cura (free download from ultimaker.com)
• •3D model file (STL format)
• •Filament (PLA recommended for beginners)
• •Clean build surface (PEI sheet, glass, or magnetic bed)
• •Optional: Bed adhesive (glue stick or Magigoo)
• •USB stick or SD card for file transfer

Estimated Time: 15-30 minutes setup + print time (1-4 hours depending on model) Difficulty: beginner

▸Step-by-Step Instructions

Step 1: Install or Update Ultimaker Cura

Download and install the latest version of Ultimaker Cura from the official website (ultimaker.com/software/ultimaker-cura). This free slicer is beginner-friendly and perfect for brim settings.

Launch Cura and set up your printer profile: Go to Settings > Printer > Add Printer, select your model (e.g., Creality Ender 3), or use a generic profile. Why? Accurate profiles ensure correct brim generation and bed size.

Expect a clean interface with a central build plate view. Test by importing a simple model like a calibration cube.

💡 Tips:

• •Use Cura 5.6 or later for improved brim algorithms.

⚠️ Warnings:

• •Avoid outdated slicers; they may lack brim line controls.

Step 2: Load Your 3D Model

File > Open File(s) or drag your STL into Cura. Position it on the build plate using the move/rotate tools (shortcut: V for move).

Scale if needed (right-click > Scale) and ensure it's flat on the bed—no supports for brim testing yet. Center it for even brim formation.

Success looks like your model snug on the virtual bed, ready for slicing. This prevents edge warping from overhangs.

💡 Tips:

• •Print a test cube first to verify settings.

Step 3: Enable Brim in Print Settings

Switch to Prepare tab. Under Build Plate Adhesion, select Brim from the dropdown (not Skirt or Raft).

This generates a 1-layer skirt around your print's perimeter. Why brims? They increase bed contact area by 10-20mm, anchoring corners against contraction stresses.

Preview: Click Preview after slicing—zoom to see the thin brim outline hugging your model.

💡 Tips:

• •Start with default brim; tweak later.

⚠️ Warnings:

• •Don't confuse with Raft—brims are thinner and easier to remove.

Step 4: Optimize Brim Settings

Click the gear icon next to Brim for details. Set Brim Width to 5-10mm (8mm ideal for beginners), Brim Line Count to 10-20 lines.

Adjust Brim Speed to 30-50mm/s for good adhesion. Enable Print Sequence: Below if available. These settings maximize grip without wasting filament.

Expect 5-15g extra material use—minimal for flat results.

💡 Tips:

• •Wider brims (10mm+) for ABS; narrower for PLA.

⚠️ Warnings:

• •Too few lines (<5) won't anchor large prints.

Step 5: Tune Bed Adhesion and Temperatures

In Material tab: Bed temp 60°C for PLA, nozzle 200°C. Cooling at 100% after layer 2.

Initial Layer flow 105-110% for squish. Add adhesive: Wipe glue stick on bed.

Why? Hot bed + adhesion prevents first-layer lift. Clean bed with IPA first.

💡 Tips:

• •Use enclosure to block drafts.

Step 6: Slice, Preview, and Save

Hit Slice. Review layers: Layer 0 shows brim. Check travel moves—no strings.

Export G-code to USB/SD. Success: Green slicing, brim visible in preview.

Transfer to printer.

💡 Tips:

• •Preview 10% speed to inspect brim.

⚠️ Warnings:

• •Reslice if warnings appear.

Step 7: Print and Monitor

Start print. Watch first layer: Brim should stick firmly, model flat.

If warping starts, pause and re-level bed. Prints finish with brim attached.

Cool bed to 40°C before removal.

💡 Tips:

• •No-touch first 10 mins.

Step 8: Remove Brim and Inspect

Flex bed or use spatula to peel brim gently. It snaps off cleanly.

Check base: Flat, no lifts. Sand edges if needed.

Iterate: Note successful settings for future.

💡 Tips:

• •Heat bed to 50°C for easy peel.

⚠️ Warnings:

• •Don't force—risk damaging print.

▸Pro Tips

• •Dry filament overnight to reduce moisture warping.
• •Level bed perfectly before brim prints.
• •Use a draft shield in slicer for open printers.
• •Increase brim to 15mm for tall prints (>100mm).
• •Combine with vase mode for skirts on cylinders.
• •Save custom profile: 'Anti-Warp PLA'.
• •Print in enclosure for ABS success.

▸Common Mistakes to Avoid

• •Not cleaning bed: Dust causes poor adhesion—wipe with 90% IPA.
• •Wrong temps: Too low bed (<50°C PLA) leads to lifts—increase 5°C increments.
• •Narrow brim (<5mm): Insufficient anchor—use 8-10mm default.
• •Skipping preview: Misses brim gaps—always slice first.
• •Rough removal: Breaks print edges—cool and flex gently.

▸Troubleshooting

Problem: Brim doesn't stick

Solution: Clean bed, add glue/Magigoo, increase initial layer flow to 110%.

Problem: Warping despite brim

Solution: Add enclosure, dry filament, or switch to Raft for severe cases.

Problem: Brim too hard to remove

Solution: Lower brim speed to 40mm/s, use fewer lines (10 max).

Problem: Print shifts during brim

Solution: Re-level bed, check belts loose.

Magigoo Original 3D Printing Bed Adhesive

Pen-style applicator for mess-free adhesion, perfect for brims on glass/PEI.

Best for: Apply thin layer before every print to boost brim grip on PLA/ABS.

Price Range: $19.99

Creality Ender 3 Enclosure Kit

Reduces drafts and holds heat, amplifying brim effectiveness.

Best for: For open-frame printers during warping-prone large prints.

Price Range: $69.99

SUNLU Filament Dryer Box

Dries filament to prevent moisture-induced warping under brims.

Best for: Dry PLA 4-6 hours before printing humid environments.

Price Range: $49.99

Creality PEI Textured Build Plate

Superior grip for brims without glue, easy release.

Best for: Replace stock bed for consistent first-layer success.

Price Range: $24.99

Overture PLA Filament 1.75mm

Low-warp formula works best with brims, reliable quality.

Best for: Beginner daily printing with minimal adjustments.

Price Range: $21.99