📏 Layer Height Guide
Find the right layer height for your nozzle size. See quality vs speed tradeoffs, application-specific recommendations, and first layer tips.
🔍 Layer Height Advisor
Recommended Layer Heights
0 mm
📊 Layer Height Ranges by Nozzle Size
0.08 mmUltra fine detail, very slow. Good for miniatures and jewelry models.Ultra Fine
0.12 mmFine quality. Excellent surface finish with manageable print time increase.Fine
0.20 mmThe 0.4 mm sweet spot. Best balance of speed, strength and surface quality. Widely used default.★ Recommended
0.24 mmSlightly faster than 0.20 with little quality loss. Great for functional parts.Good Balance
0.28 mmDraft quality. Noticeably faster. Layer lines visible. Use for prototypes.Draft
0.32 mmMaximum practical height for 0.4 mm nozzle (80% of nozzle). Fastest speed, rough finish.Max Practical
0.04 mmExtreme detail, very slow. Reserved for professional resin-quality FDM prints.Ultra Fine
0.08 mmFine detail for a 0.2 mm nozzle. Good surface finish for miniatures and tiny parts.★ Recommended
0.10 mmStandard for 0.2 mm nozzle. Excellent quality with reasonable print time.★ Recommended
0.12 mmDraft for 0.2 mm nozzle. Fastest usable height. Visible layer lines.Draft
0.16 mmMaximum (80% of nozzle). Not recommended — risk of poor adhesion.Max
0.12 mmFine for 0.6 mm nozzle. Good detail with faster deposition than 0.4 mm at same layer height.Fine
0.20 mmGood quality. Faster than 0.4 mm nozzle at same height due to wider extrusion.Good
0.30 mmSweet spot for 0.6 mm. Excellent speed with good surface quality. Great for large prints.★ Recommended
0.40 mmFast draft mode. Visible layer lines. Good for large structural parts.Draft
0.48 mmMaximum (80%). Very fast, rough surface. For speed-critical large parts only.Max Practical
0.16 mmFine for 0.8 mm nozzle. Surprisingly good surface on large prints with high throughput.Fine
0.24 mmGood quality at high speed. Ideal for large mechanical parts with decent finish.Good
0.40 mmSweet spot for 0.8 mm. Massive speed gains over 0.4 mm nozzle. Rougher texture.★ Recommended
0.50 mmFast draft mode. Noticeably rough surface but very high throughput for large prints.Draft
0.64 mmMaximum (80%). Rough finish, extremely fast material deposition.Max Practical
⚖️ Layer Height Effects
| Property | Thinner layers (↓ height) | Thicker layers (↑ height) |
|---|---|---|
| Surface Finish | Smoother, finer detail, less visible layer lines | Rougher, visible stepped layers, faster finish visible |
| Print Time | Significantly longer — more layers to print | Much faster — fewer layers overall |
| Z-strength | Slightly weaker per layer (more interfaces) | Potentially stronger Z-bonding (more material per bond) |
| XY Detail | Same — controlled by nozzle diameter, not layer height | Same — XY resolution is independent of layer height |
| Support Removal | Harder — thin layers bond more to support interfaces | Easier — thick layers have less contact with supports |
| Overhangs | Better overhang performance with less droop per layer | Worse overhangs — more material sagging per layer |
| Filament Use | Slightly more material due to more perimeter passes | Slightly less material per mm of height |
🎯 By Application
Miniatures & Figurines
0.05–0.12 mm
Maximum detail, smooth curves. Requires 0.2 mm nozzle or smaller.
Speed: 20–35 mm/s | Walls: 3–4 | Infill: 15–20%
Cosplay Props
0.20–0.30 mm
Good speed, acceptable surface that sands well. Use 0.4–0.6 mm nozzle.
Speed: 50–70 mm/s | Walls: 4 | Infill: 10–15%
Functional / Mechanical
0.20–0.28 mm
Good strength and dimensional accuracy. Surface finish less critical.
Speed: 45–60 mm/s | Walls: 4–5 | Infill: 40–60%
Decorative / Display
0.10–0.20 mm
Smooth surfaces, good detail. Use 0.4 mm nozzle for best balance.
Speed: 40–55 mm/s | Walls: 3 | Infill: 10–20%
Large / Structural Parts
0.28–0.40 mm
Speed is key. Use 0.6–0.8 mm nozzle for even faster throughput.
Speed: 70–100 mm/s | Walls: 4–5 | Infill: 20–40%
Snap-Fit / Toleranced Parts
0.15–0.20 mm
Precise dimensions. Thinner layers improve accuracy in Z. Test first layer carefully.
Speed: 40–50 mm/s | Walls: 4 | Infill: 30–50%
🟩 First Layer Height — Why It Matters
The first layer is the foundation of your print. It must adhere firmly to the build plate. Most slicers use a first layer height of 100% of the nozzle diameter (e.g., 0.4 mm for a 0.4 mm nozzle), regardless of the rest of the print's layer height.
- Use 100% of nozzle diameter as first layer height (e.g., 0.4 mm for 0.4 mm nozzle)
- Slow first layer speed to 15–25 mm/s for better bed adhesion
- Set first layer width to 100–125% of nozzle diameter for more squish
- Ensure your Z-offset is calibrated — paper test or live-adjust first layer
- A correctly squished first layer looks slightly flattened and glossy, not raised or blobby
- If prints warp, increase bed temperature or add a brim for more surface area
🔧 When to Upgrade Your Nozzle
0.2 mm
Ultra Fine Detail
For maximum detail and smooth surfaces. Very slow. Not for everyday use.
- D&D miniatures
- Jewelry models
- Fine architectural detail
- Requires slower speeds & patience
0.4 mm
Standard (Default)
Best all-rounder. Ships with most printers. Great balance of detail and speed.
- Prototypes & functional parts
- Figurines & display models
- General purpose printing
- Most filament types work well
0.6 mm
Speed & Strength
Up to 2× faster than 0.4 mm for large prints. Better layer bonding, slightly less detail.
- Large cosplay parts
- Thick-walled containers
- Draft prints & rapid iteration
- Better with carbon-filled filaments
0.8 mm
High Flow / Large Parts
Massive throughput. Surface finish is rough. Use when speed matters most.
- Large structural parts
- Vases & planters
- Supports & sacrificial prints
- Excellent layer bonding strength
1.0 mm
Extreme Flow
Specialist use. Extremely fast, very rough surface. Requires a high-flow hotend.
- Industrial prototyping
- Very large-scale prints
- High-flow hotend required
- Poor fine detail capability
The 20–80% Rule for Layer Height
The golden rule in 3D printing is to keep your layer height between 20% and 80% of your nozzle diameter. Below 20%, the nozzle can't consistently extrude such thin lines. Above 80%, there's not enough overlap between layers for good adhesion, and you risk a weak Z-axis bond.
For a standard 0.4 mm nozzle, this means layer heights between 0.08 mm and 0.32 mm. The typical default of 0.20 mm sits right at 50% — a deliberate sweet spot chosen by most slicer developers.